Us stock margin trading system and program

Abstract

To provide a highly convenient US stock margin trading system capable of diversifying investment opportunities of investors.SOLUTION: A US stock margin trading system 10 includes yen deposit storage means 53 for storing yen deposits in foreign securities accounts, US dollar deposit storage means 52 for storing US dollar deposits in foreign securities accounts, and US dollar margin storage means 45 for storing US dollar margins in US stock margin trading accounts. In order to secure collateral for margin trading of US stocks, US dollar margin transfer means 27 automatically executes transfer from yen deposits to US dollar deposits, and further from US dollar deposits to US dollar margin deposits, all at once without requiring the user (a customer or an input agent thereof) to perform two-step transfer operations.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a US stock margin trading system and program configured by a computer that executes processing for margin trading of US stocks within a trading limit determined according to the amount of US dollar security that a customer has provided to a securities company as collateral, and can be used, for example, when building a system by utilizing some of the functions of an existing foreign securities trading system and linking it with newly established margin trading functions for US stocks. [Background technology]

[0002] Previously, the trading of US stocks in Japan was not covered by the rules on foreign securities set out by the Japan Securities Dealers Association, and therefore trading equivalent to margin trading of Japanese stocks was not possible, and only spot trading was possible within the limits of the US dollar deposits held by customers.

[0003] In the present invention, margin trading of U.S. stocks is carried out. However, conventional technologies related to margin trading include, for example, an "information processing method, information processing device, and program" (see Patent Document 1) that calculates a high score for a user's capital demand when a margin call becomes necessary in a user's transaction of a financial product using a financial service; an "instant settlement margin trading system" (see Patent Document 2) that realizes instant settlement of margin trading; a "stock margin trading system" (see Patent Document 3) that allows customers to easily control risk and allows even beginners to safely carry out margin trading without basically being required to make a margin call; a "securities server, bank server, securities trading system, and processing method and program therefor" (see Patent Document 4) that reduces the burden on customers regarding the transfer of funds between accounts in securities brokerage transactions; and a "margin / margin automatic maintenance system and margin / margin automatic maintenance method" (see Patent Document 5) that can set upper and lower limits on the balance of margin in margin trading or margin in futures / options trading and maintain it at a certain level. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-2170 A (paragraph

[0095] ) [Patent Document 2] JP 2012-155738 A (Solution) [Patent Document 3] JP 2010-282371 A (Solution) [Patent Document 4] JP 2009-87089 A (Solution, paragraphs

[0054] and

[0055] ) [Patent Document 5] JP 2006-221331 A (Solution) Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, trading of foreign stocks has become more active, with US stocks becoming increasingly popular, and individual investors are demanding a diversification of their investment opportunities. However, as mentioned above, trading of US stocks in Japan has not been able to accommodate margin trading equivalent to Japanese stocks, so investors' demands have not been met. Furthermore, even if margin trading equivalent to Japanese stocks becomes possible, simply converting the existing margin trading system for Japanese stocks that has been in operation into a margin trading system for US stocks will not result in a highly convenient system.

[0006] An object of the present invention is to provide a highly convenient US stock margin trading system and program that can diversify investors' investment opportunities. [Means for solving the problem]

[0007] The present invention provides a US stock margin trading system configured by a computer that executes processing for margin trading of US stocks within a trading limit determined according to the amount of US dollar margin deposited by a customer to a securities company as collateral, a yen deposit storage means for storing the amount of yen deposit in a foreign securities account opened for spot trading of foreign securities in association with customer identification information; a US dollar deposit storage means for storing the amount of US dollar deposit in the foreign securities account in association with customer identification information; a US dollar margin storage means for storing the amount of US dollar margin for a US stock margin trading account opened for margin trading of US stocks in association with customer identification information; The transfer amount specified in yen or US dollars is accepted via a network from a user terminal operated by the customer or their input agent as input operation information by the customer or their input agent for increasing the amount of the US dollar guarantee stored in the US dollar guarantee storage means, and the transfer amount specified in yen or the transfer amount specified in US dollars converted into yen at the exchange rate stored in the exchange rate information storage means is subtracted from the amount of the yen deposit stored in the yen deposit storage means in association with the customer identification information of the customer who made the transfer, and the transfer amount specified in yen is converted into yen at the exchange rate a US dollar margin transfer means for executing a yen deposit-US dollar margin transfer process, which adds the transfer amount converted into US dollar amount by the transaction or the transfer amount specified in US dollars to the amount of the US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information of the customer who performed the input operation, and further subtracts the same amount as the added amount from the amount of the US dollar deposit stored in the US dollar deposit storage means, and adds the same amount as the US dollar amount subtracted from the US dollar deposit to the amount of the US dollar margin stored in the US dollar margin storage means in association with the customer identification information of the customer who performed the input operation; The present invention is characterized by the following features.

[0008] Here, the meaning of "subtracting the same amount as the added amount from the amount of the US dollar deposit stored in the US dollar deposit storage means" in the "yen deposit-US dollar security deposit transfer processing" by the "US dollar security deposit transfer means" does not only mean subtracting the value of the data of the US dollar deposit before the transfer, but also includes the case of effectively subtracting the US dollar deposit by maintaining the data value of the US dollar deposit before the transfer (the data value of the US dollar deposit before the collateral is posted to the US dollar security deposit) as it is, while storing the amount to be subtracted as a negative element in a column within the same record (a column provided to store the amount of collateral posted to the US dollar security deposit as a negative element from the US dollar deposit). The same applies to other inventions.

[0009] In such a US stock margin trading system of the present invention, a US dollar margin transfer means is provided for executing the yen deposit-US dollar margin transfer process, so that the transfer from the yen deposit to the US dollar deposit and then from the US dollar deposit to the US dollar margin can be automatically executed in one go without requiring the user (the customer or their input agent) to perform two-step transfer operations. Therefore, the user can increase the US dollar margin without being aware of the two-step transfer process via the US dollar deposit, thereby realizing a highly convenient system.

[0010] Furthermore, by linking the yen deposits and US dollar deposits in the foreign securities account with the US dollar margin in the US stock margin trading account, funds can be transferred to secure the US dollar margin that serves as collateral for margin trading, thereby creating a highly convenient system, thereby achieving the above-mentioned objectives.

[0011] <Configuration with US stock substitute securities book-entry transfer vehicle>

[0012] In addition, in the above-described U.S. stock margin trading system of the present invention, a U.S. stock balance storage means for storing stock identification information and holding quantities of U.S. stocks held by a customer in a foreign securities account in association with customer identification information; a U.S. stock substitute securities storage means for storing issue identification information and deposited quantities of U.S. stock substitute securities in a U.S. stock margin trading account that are deposited by a customer as collateral for U.S. stock margin trading other than the U.S. dollar margin deposit in the U.S. stock margin trading account; a US stock substitute securities book-entry transfer means for maintaining a state in which the customer's holding quantity stored in the US stock balance storage means and the customer's deposit quantity stored in the US stock substitute securities storage means match, for said substitute securities issue, by storing in the US stock substitute securities storage means all of the holding quantities of substitute securities issues, excluding non-substitutable issues that are predetermined as issues that cannot be deposited as US stock substitute securities, among the issues held by customers stored in the US stock balance storage means, as the deposit quantity for said substitute securities issue; It is desirable to have the following.

[0013] Here, "the entire holding quantity of a substitute security issue is stored in the U.S. stock substitute security storage means as the deposit quantity for that substitute security issue" means that if a substitute security issue is held in a foreign securities account, the entire holding quantity will be deposited in the U.S. stock substitute security storage means for margin trading. More specifically, this means that if a customer holds a substitute security issue in a foreign securities account when they open a U.S. stock margin trading account, the entire holding quantity for that substitute security issue will be deposited in the U.S. stock substitute security storage means for margin trading. If there is a subsequent change (increase or decrease) in the holding quantity of a substitute security issue stored in the U.S. stock balance storage means of the foreign securities account, this increase or decrease will be reflected in the deposit quantity for that substitute security issue stored in the U.S. stock substitute security storage means, and the deposit quantity will increase or decrease.

[0014] Furthermore, "maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means matches the customer's deposit quantity stored in the U.S. stock substitute securities storage means" means that, excluding non-substitutable securities, data management is performed in which the holding quantity in the U.S. stock balance storage means (data management for the foreign securities account) and the deposit quantity in the U.S. stock substitute securities storage means (data management for the U.S. stock margin trading account) are duplicated and mirrored. Therefore, when collateral is deposited for margin trading, data management in the U.S. stock balance storage means, which is the source of the collateral, could be performed in which the deposited quantity (in this invention, the entire quantity) is subtracted from the holding quantity. However, this invention does not perform such data management, but rather means that the holding quantity is maintained in the state before the deposit and the deposited quantity is left in the U.S. stock balance storage means.

[0015] When a system is configured with a US stock substitute securities transfer means in this way, by linking the US stocks held in a foreign securities account with the US stock substitute securities deposited in a US stock margin trading account, it is possible to transfer stocks (where transfer means duplication) to secure the US stock substitute securities that serve as collateral for margin trading, thereby creating a highly convenient system in this respect as well.

[0016] Furthermore, since the posting of collateral in the form of substitute securities is achieved through mirroring between the U.S. stock balance storage means and the U.S. stock substitute securities storage means, the data management of the U.S. stock balance storage means, which is the source of the posting, maintains and remains unchanged the data prior to the posting even after the posting. In other words, even if the entire holding quantity is posted as substitute securities, the data management of the source of the posting is not reset to zero shares. Therefore, data management of the foreign securities account when trading U.S. stocks in spot transactions can be performed separately from data management of the U.S. stock margin trading account. Therefore, when selling substitute securities in spot transactions, data processing of the foreign securities account when a sell order and the order are executed can be performed regardless of whether a U.S. stock margin trading account is opened, and can be performed in the same way as if only a foreign securities account were opened. More specifically, when a foreign securities account sells U.S. stocks in a spot transaction and the order is executed, the holding quantity of the sold stock is reduced. However, if the stock is a substitute security issue and has been deposited in the U.S. stock substitute security storage means, and the holding balance in the U.S. stock balance storage means is zero shares, it is not possible to reduce the sold quantity from zero shares, and it would be necessary to change the processing details in that case. However, in this invention, the deposit of substitute securities is realized by mirroring, so there is no need to change the data processing details on the foreign securities account side (the processing to reduce the holding quantity of the stock sold in a spot transaction), and it is possible to avoid the complicated processing that would accompany data linkage between the two accounts.

[0017] <Configuration for automatically transferring US stocks purchased through spot trading to US stock substitute securities via a US stock substitute securities transfer vehicle>

[0018] Furthermore, in the case where the above-mentioned U.S. stock substitute securities book-entry transfer means is provided, The US stock substitute securities transfer vehicle is When a customer purchases U.S. stocks in a spot transaction and the holding quantity of the stock related to the purchase stored in the U.S. stock balance storage means in association with the customer identification information of the customer who made the purchase increases by the purchase quantity, it is desirable that the process of adding the purchase quantity to the deposit quantity of the stock related to the purchase stored in the U.S. stock substitute securities storage means in association with the customer identification information of the customer who made the purchase is automatically executed by a process that maintains a state in which the customer's holding quantity stored in the U.S. stock balance storage means and the customer's deposit quantity stored in the U.S. stock substitute securities storage means match for the substitute securities stock.

[0019] In this case, as described above, in the data management of the holding quantity in the U.S. stock balance storage means, even after the deposit of a substitute security issue, the holding quantity before the deposit is maintained (processing that realizes the deposit of substitute securities by mirroring), so when the holding quantity increases by the purchase quantity due to a purchase in a spot transaction, the U.S. stock substitute security book-entry means does not need to process the process of subtracting the purchase quantity from the increased holding quantity as a process of depositing substitute securities for that increase. In other words, the increased holding quantity is maintained as it was when it was increased.

[0020] In this way, if the system is configured so that U.S. stocks purchased through spot trading are automatically transferred to U.S. stock substitute securities using a U.S. stock substitute securities transfer means, when U.S. stocks are purchased through spot trading, the purchased U.S. stocks can be automatically deposited into U.S. stock substitute securities without the user having to issue a transfer instruction to U.S. stock substitute securities, thereby making it possible to realize a highly convenient system in this respect as well.

[0021] <Configuration with US stock sales proceeds transfer method>

[0022] In addition, in the case where U.S. stocks purchased through spot trading as described above are automatically transferred to U.S. stock substitute securities through a U.S. stock substitute securities book-entry transfer vehicle, The US stock substitute securities transfer vehicle is When a customer sells the substitute securities issue in a spot transaction of U.S. stocks and the holding quantity of the issue related to the sale that is stored in the U.S. stock balance storage means in association with the customer identification information of the selling customer is reduced by the sold quantity, a process of reducing the deposit quantity of the issue related to the sale that is stored in the U.S. stock substitute securities storage means in association with the customer identification information of the selling customer is automatically executed by a process of maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means and the customer's deposit quantity stored in the U.S. stock substitute securities storage means match for the substitute securities issue, It is desirable to have a US stock sales proceeds transfer means that automatically executes the process of, after processing associated with the sale of a substitute security issue by the US stock substitute security transfer means, adding the US dollar sales proceeds obtained from the sale to the US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information of the customer who made the sale, and further subtracting an amount equal to the sales proceeds from the US dollar deposit stored in the US dollar deposit storage means, and adding an amount equal to the sales proceeds to the amount of US dollar margin stored in the US dollar margin storage means in association with the customer identification information of the customer who made the sale.

[0023] In a configuration equipped with a US stock sales proceeds transfer means in this manner, when a substitute security issue is sold in a spot transaction of US stocks, the US stock substitute securities transfer means reduces the quantity of US stock substitute securities to be deposited, and then the US stock sales proceeds transfer means adds the sales proceeds to the US dollar deposit.Furthermore, the transfer process for the sales proceeds from the US dollar deposit to the US dollar guarantee is automatically executed without the user having to give a transfer instruction to the US dollar guarantee, thereby realizing a system that is highly convenient in this respect as well.

[0024] Furthermore, the processing by this U.S. stock selling proceeds transfer means is closely related to the processing by the U.S. stock substitute securities transfer means, which realizes the deposit of substitute securities by mirroring (processing that maintains a state in which the customer's holding quantity stored in the U.S. stock balance storage means matches the customer's deposit quantity stored in the U.S. stock substitute securities storage means for the substitute securities issue). In other words, in the processing by the U.S. stock substitute securities transfer means, which realizes the deposit of substitute securities by mirroring, the U.S. stock balance storage means retains a holding quantity including the deposited amount, and sales are made from that amount. However, even if a sale is made, the U.S. stock selling proceeds transfer means automatically transfers the sales proceeds from the U.S. stock deposit to the U.S. stock margin, which prevents the customer from using the sales proceeds for other purposes (such as purchasing another issue or transferring to yen), and maintains a secured state for the collateral for margin trading. Furthermore, by processing through such a US stock sales proceeds transfer instrument, customers can carry out the sale procedure for spot trading without particularly worrying about whether the stocks they are trying to sell are substitute securities (whether they are used as collateral for margin trading).

[0025] <Configuration equipped with US stock margin new trade means, US stock margin contract processing means, and US stock margin position management means>

[0026] Furthermore, in the above-described U.S. stock margin trading system of the present invention, US stock margin order data storage means for storing order data of US stock margin transactions in which a customer has made a purchase or sale, in association with customer identification information; a US stock margin new order trading means for receiving order data including stock identification information, quantity, order price, and buy / sell classification from a user terminal via a network as input operation information for a new buy transaction or a new short transaction for a US stock margin transaction, storing the received order data in a US stock margin order data storage means in association with customer identification information and order identification information for the customer who placed the order, and creating order data including order identification information, stock identification information, quantity, order price, and buy / sell classification using the order data, and transmitting the created order data to a US brokerage system via the network; US stock margin contract processing means for receiving contract data including order identification information, stock identification information, contract volume, contract unit price, and buy / sell classification transmitted from the brokerage system via the network, and for storing the received contract data in US stock margin contract data storage means in association with customer identification information; a US stock margin position management means for storing, in the case where the order identification information of the contract data received from the brokerage system is order identification information of a new buy transaction or a new sell transaction stored in the US stock margin order data storage means, the stock identification information, contract volume, contract unit price, and buy / sell classification included in the contract data in association with the customer identification information as a US stock margin trading position; It is desirable to have the following.

[0027] In this configuration equipped with a US stock margin new trade means, a US stock margin contract processing means, and a US stock margin position management means, the entire process of accepting new buy or sell orders for US stock margin trading from users, sending order data to the US, receiving contract data from the US, and managing positions can be carried out smoothly without manual intervention (time-consuming operations and procedures by employees of securities companies in Japan or the US).

[0028] <Configuration with US stock margin repayment trading method>

[0029] In addition, in the case where the system is configured to include the US stock margin new trade means, US stock margin contract processing means, and US stock margin position management means, a US stock margin repayment trading means for receiving, from a user terminal via a network, the designation of a position to be subjected to a repayment transaction as input operation information for a repayment transaction by a counter sale of the position stored in a US stock margin position storage means, and using the designated position, creating repayment order data including the same brand identification information as the brand identification information of the position, a quantity the same as the contract quantity of the position or a partial quantity in the case of a partial repayment, a buy / sell classification opposite to the buy / sell classification of the position, a repayment order price, and order identification information for the repayment transaction, and transmitting the created repayment order data to an intermediary system via the network; US stock margin contract processing method: The contract data for the repayment transaction including the order identification information for the repayment transaction is also received from the intermediary system via the network, US stock margin position management methods are: When contract data for a repayment transaction is received from the intermediary system, it is desirable that the system is configured to also execute a process of storing the repayment contract amount, the repayment contract unit price, and the settlement profit and loss calculated from the contract unit price, repayment contract amount, and repayment contract unit price of the open position in the US stock margin open position storage means as information that the repayment transaction for the open position has been completed.

[0030] When the system is configured with a US stock margin repayment trading means in this way, when repayment transactions are made for positions stored in the US stock margin position storage means and closing processing (fill processing) is performed, the series of processes can be carried out smoothly without manual intervention (time-consuming operations and procedures by employees of Japanese or US securities companies), just as when opening processing is performed.

[0031] <Configuration equipped with billing calculation processing means and automatic margin call transfer means>

[0032] Furthermore, in the case where the above-mentioned claim calculation processing means and automatic margin call transfer means are provided, The contract amount calculated from the contract quantity and contract unit price for each customer's unrepaid open position stored in the US stock margin position storage means, the settlement profit and loss in the event of repayment, and the valuation profit and loss of the unrepaid open position calculated using the market price information of the open position stored in the stock price information storage means, the amount of US dollar margin stored in the US dollar margin storage means in association with each customer's customer identification information, and the deposit quantity of the substitute securities stored in the US stock substitute securities storage means in association with each customer's customer identification information and the stock price information storage means. a claim calculation processing means for calculating a margin maintenance rate for each customer after the close of trading on each business day using the stored current price information of the substitute securities issue and the substitute securities collateral valuation amount calculated using a predetermined substitute multiplier, with a predetermined margin maintenance rate calculation formula, and, if it is determined that there is a customer whose calculated margin maintenance rate is lower than a predetermined minimum margin maintenance rate, calculating a US dollar margin call amount indicating the amount of additional US dollar margin required to restore the margin maintenance rate of the customer to the predetermined required margin maintenance rate; an automatic margin call transfer means for subtracting the US dollar margin call amount calculated by the claim calculation processing means from the amount of the US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information of the customer, and for adding the US dollar margin call amount to the amount of the US dollar margin stored in the US dollar margin storage means in association with the customer identification information of the customer; It is desirable to have the following.

[0033] When the system is configured with a billing calculation processing means and an automatic margin call transfer means in this way, by linking the US dollar deposit in the foreign securities account with the US dollar margin in the US stock margin trading account, funds can be transferred to deposit the US dollar margin call amount, making it possible to realize a highly convenient system in this respect as well.

[0034] <Configuration for executing hybrid US dollar margin transfer processing using US dollar margin transfer means>

[0035] In addition, in the above-described U.S. stock margin trading system of the present invention, The US dollar margin transfer method is: In addition to processing yen deposits and US dollar margin transfers, The hybrid US dollar margin transfer process is configured to simultaneously transfer the yen deposit to the US dollar margin and the US dollar deposit to the US dollar margin, Hybrid USD margin transfer processing: as input operation information by the customer or their input agent for increasing the amount of the US dollar margin stored in the US dollar margin storage means, the sum of the yen deposit / US dollar margin transfer amount for transferring from the yen deposit to the US dollar margin and the US dollar deposit / US dollar margin transfer amount for transferring from the US dollar deposit to the US dollar margin is received from the user terminal via the network as a total amount specified in yen or US dollars; When dividing the total amount received into yen deposit and US dollar margin transfer amounts and US dollar deposit and US dollar margin transfer amounts, (A) A process of unifying the current amount of yen deposit stored in the yen deposit storage means or the amount converted into US dollars at the exchange rate of this amount and the current amount of US dollar deposit stored in the US dollar deposit storage means or the amount converted into yen at the exchange rate of this amount into either yen or US dollars, and apportioning the total amount based on the ratio of these amounts; (B) A process of unifying the maximum amount of the yen deposit balance stored in the yen deposit storage means during a predetermined period from the past to the present, or the amount converted into US dollars at the exchange rate of this maximum amount, and the maximum amount of the US dollar deposit balance stored in the US dollar deposit storage means during that period, or the amount converted into yen at the exchange rate of this maximum amount, into either yen or US dollars, and apportioning the total amount based on the ratio of these amounts; (C) The process of unifying the average of the maximum and minimum amounts of the yen deposit balances stored in the yen deposit storage means during a predetermined period from the past to the present, or the amount converted into US dollars at the exchange rate of this average amount, and the average of the maximum and minimum amounts of the US dollar deposit balances stored in the US dollar deposit storage means during that period, or the amount converted into yen at the exchange rate of this average amount, into either yen or US dollars, and then apportioning the total amount based on the ratio of these amounts, By executing the process of (A) and the process of (B) and / or (C), the customer or their agent is provided with a screen display of options for dividing the total amount; Using the yen deposit and US dollar margin transfer amounts and the US dollar deposit and US dollar margin transfer amounts calculated using the division method selected by the customer or their agent, subtract the yen deposit / US dollar margin transfer amount calculated in yen, or the yen deposit / US dollar margin transfer amount calculated in US dollars and converted into yen at the exchange rate, from the yen deposit amount stored in the yen deposit storage means in association with the customer identification information of the customer who made the transfer, and add the yen deposit / US dollar margin transfer amount calculated in yen and converted into US dollar at the exchange rate, or the yen deposit / US dollar margin transfer amount calculated in US dollars, to the US dollar deposit amount stored in the US dollar deposit storage means in association with the customer identification information of the customer who performed the input operation; Furthermore, the total amount of the Yen Deposit / US Dollar Guarantee Deposit Transfer Amount and the US Dollar Deposit / US Dollar Guarantee Deposit Transfer Amount is calculated by adding the US Dollar Deposit / US Dollar Guarantee Deposit Transfer Amount calculated in US Dollars, or the US Dollar Deposit / US Dollar Guarantee Deposit Transfer Amount calculated in Yen to the added Yen Deposit / US Dollar Guarantee Deposit Transfer Amount, and The process may be configured to subtract the calculated total amount from the amount of US dollar deposit stored in the US dollar deposit storage means, and add an amount equal to the subtracted total amount to the amount of US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information for the customer who performed the input operation.

[0036] When the hybrid US dollar margin transfer process is performed using the US dollar margin transfer means in this manner, the total amount received from the user can be automatically divided into a yen deposit / US dollar margin transfer amount and a US dollar deposit / US dollar margin transfer amount, thereby realizing an even more convenient system.

[0037] <Program invention>

[0038] The program of the present invention is for causing a computer to function as the US stock margin trading system described above.

[0039] The above program or a portion thereof may be recorded on a recording medium such as a magneto-optical disk (MO), compact disk (CD), digital versatile disk (DVD), flexible disk (FD), magnetic tape, read-only memory (ROM), electrically erasable and programmable read-only memory (EEPROM), flash memory, random access memory (RAM), hard disk drive (HDD), solid-state drive (SSD), or flash disk, and may be transmitted using a transmission medium such as a wired network (e.g., local area network (LAN), metropolitan area network (MAN), wide area network (WAN), the Internet, an intranet, or an extranet), a wireless communication network, or a combination thereof, or may be carried on a carrier wave. Furthermore, the above program may be a portion of another program, or may be recorded on a recording medium together with a separate program. [Effects of the Invention]

[0040] As described above, according to the present invention, transfers from yen deposits to US dollar deposits and then from US dollar deposits to US dollar guarantee deposits can be automatically carried out in one go without the user having to perform two-step transfer operations.This means that users can increase their US dollar guarantee deposits without being aware that a two-step transfer process is being carried out via the US dollar deposit, thereby achieving the effect of realizing a highly convenient system. [Brief explanation of the drawings]

[0041] [Figure 1] 1 is a diagram illustrating the overall configuration of a US stock margin trading system according to one embodiment of the present invention. [Figure 2] A flowchart showing the process of opening a US stock margin trading account and depositing US dollar margin from yen deposits in the embodiment. [Figure 3] A flowchart showing the flow of depositing US dollar security from US dollar deposit in the embodiment. [Figure 4] FIG. 10 is an explanatory diagram of the insertion of US stock substitute securities from the balance of US stock holdings in the embodiment. [Figure 5] FIG. 10 is a flowchart showing the flow of processing for order acceptance, placement, and execution of new US stock margin trades and their repayment trades in the embodiment. [Figure 6] FIG. 10 is a flowchart showing the flow of a transfer process to U.S. stock substitute securities when U.S. stocks are purchased through spot trading in the embodiment. [Figure 7] A flowchart showing the flow of the transfer process to US dollar guarantee when US stocks that serve as substitute securities in the embodiment are sold in a spot transaction. [Figure 8] FIG. 10 is a flowchart showing the flow of calculation of the US dollar margin call amount and transfer processing to the US dollar guarantee deposit in the embodiment. [Figure 9] FIG. 10 is a view showing an example of a contact screen displayed after logging in according to the embodiment. [Figure 10]FIG. 10 is an exemplary view of an open position list screen according to the embodiment. [Figure 11] FIG. 10 is an explanatory diagram showing a modified embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0042] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 illustrates the overall configuration of a U.S. stock margin trading system 10 according to this embodiment. FIG. 2 illustrates the process for opening a U.S. stock margin trading account and transferring a U.S. dollar margin from a yen deposit. FIG. 3 illustrates the process for transferring a U.S. dollar margin from a U.S. dollar deposit. FIG. 4 illustrates the process for transferring U.S. stock substitute securities from a U.S. stock holding. FIG. 5 illustrates the process for accepting, placing, and executing orders for new U.S. stock margin trades and their repayments. FIG. 6 illustrates the process for transferring U.S. stock substitute securities when a U.S. stock is purchased in a spot transaction. FIG. 7 illustrates the process for transferring U.S. dollar margin when a U.S. stock substitute security is sold in a spot transaction. FIG. 8 illustrates the process for calculating the U.S. dollar margin call amount and transferring the amount to the U.S. dollar margin. FIG. 9 illustrates an example of a contact screen 120 displayed after logging in, and FIG. 10 illustrates an example of an open position list screen 150.

[0043] <Overall configuration of US stock margin trading system 10>

[0044] In Figure 1, the US stock margin trading system 10 is composed of one or more computers and includes a US stock margin trading account opening means 21, a US stock current price information acquisition means 22, a US stock margin new trade means 23, a US stock margin repayment trade means 24, a US stock margin agreement processing means 25, a US stock margin position management means 26, a US dollar margin deposit transfer means 27, an exchange rate information acquisition means 28, a US stock margin trading inquiry means 29, a US stock margin trading name registration means 30, a US stock substitute securities transfer means 31, a US stock sales proceeds transfer means 32, a claim calculation processing means 33, and an automatic margin call transfer means 34.

[0045] Here, each of the means 21 to 34 is realized by a central processing unit (CPU) provided inside the computer constituting the US stock margin trading system 10, one or more programs that define the operating procedures of this CPU, and working memories such as main memory and cache memory. The details of each of these means 21 to 34 will be described later.

[0046] In addition, the US stock margin trading system 10 includes a US stock margin trading account information storage means 40, a stock price information storage means 41, a US stock margin order data storage means 42, a US stock margin contract data storage means 43, a US stock margin position storage means 44, a US dollar margin storage means 45, an exchange information storage means 46, a US stock substitute securities storage means 47, and a US stock margin trading name information storage means 48.

[0047] Furthermore, the U.S. stock margin trading system 10 includes a foreign securities account information storage means 50, a U.S. stock balance storage means 51, a U.S. dollar deposit storage means 52, and a yen deposit storage means 53. As shown by the two-dot chain line in Figure 1, these storage means 50-53 also belong to a foreign securities trading system 60 that conducts spot trading of foreign securities (including U.S. stocks), and store data on foreign securities accounts, and together with the foreign securities trading means 61, constitute the foreign securities trading system 60. The foreign securities trading system 60 is comprised of one or more computers, and although it shares some data with the U.S. stock margin trading system 10, it is a separate system independent of the U.S. stock margin trading system 10.

[0048] Here, for example, nonvolatile memories such as hard disk drives (HDDs) and solid state drives (SSDs) can be used as the storage means 40 to 48, 50 to 53. The data storage format is, for example, a database. Details of these storage means 40 to 48, 50 to 53 will be described later.

[0049] The foreign securities trading means 61 is realized by a central processing unit (CPU) installed inside the computer that constitutes the foreign securities trading system 60, one or more programs that define the operating procedures of this CPU, and working memory such as main memory and cache memory.

[0050] In addition, the US stock margin trading system 10 is connected to a US stock current price information providing system 70, a foreign exchange information providing system 71, and a US brokerage system 80 via a network such as the Internet, and this brokerage system 80 is further connected to a US exchange system 85 via a communication line (dedicated line or network).

[0051] Here, the US stock current price information providing system 70 is a system composed of one or more computers, which transmits current price information (current unit price) of each US stock brand to the US stock current price information acquisition means 22 of the US stock margin trading system 10 via a network, and may be included in the US brokerage system 80 or may be an information vendor's system.

[0052] The foreign exchange information providing system 71 is a system consisting of one or more computers, which transmits foreign exchange information (including exchange rates for converting yen to US dollars) to the foreign exchange information acquisition means 28 of the US stock margin trading system 10 via a network, and may be a Japanese system or a US system.

[0053] The brokerage system 80 is comprised of one or more computers and is a system of a U.S. securities company. The brokerage system 80 includes a U.S. stock ordering means 81 and a U.S. stock performance notification means 82. The U.S. stock ordering means 81 receives order data transmitted via a network from the U.S. stock margin new opening trading means 23 or the U.S. stock margin repayment trading means 24 of the U.S. stock margin trading system 10 installed in Japan, or the foreign securities trading means 61 of the foreign securities trading system 60, and executes order processing for the U.S. exchange system 85. The U.S. stock performance notification means 82 receives contract data transmitted from the U.S. exchange system 85 and executes processing to transmit the contract data via a network to the U.S. stock margin contract processing means 25 of the U.S. stock margin trading system 10 or the foreign securities trading means 61 of the foreign securities trading system 60.

[0054] The US exchange system 85 is composed of one or more computers, and is, for example, the system of the New York Stock Exchange (NYSE) or the Nasdaq (NASDAQ).

[0055] In addition, a user terminal 90 operated by a customer or their input agent, and an administrator terminal 91 operated by a system administrator are connected to the US stock margin trading system 10 via a network such as the Internet. These user terminals 90 and administrator terminal 91 are configured by computers and equipped with display means such as a liquid crystal display and input means such as a keyboard and mouse.

[0056] <Configuration of US stock margin trading account opening method 21>

[0057] The US stock margin trading account opening means 21 receives information requesting the opening of a US stock margin trading account from a customer transmitted via the network from the user terminal 90, assigns a customer sub-ID, which is customer identification information for the US stock margin trading account, to the customer, and stores the assigned customer sub-ID in the US stock margin trading account information storage means 40 in association with the general securities account number (customer ID, which is customer identification information) (see Figure 2 described below). Note that customer information such as each customer's name, contact information such as telephone number and email address, and address is stored in the customer information storage means (not shown) in association with the customer ID.

[0058] <Configuration of US Stock Market Price Information Acquisition Method 22>

[0059] The US stock current price information acquisition means 22 acquires current price information (current unit price) for each US stock transmitted via the network from the US stock current price information provision system 70, associates it with stock identification information (stock code), and stores it in the stock price information storage means 41.

[0060] <23 Composition of US Equity Margin New Trading Instruments>

[0061] The US stock margin new order trading means 23 accepts customer order data (including stock identification information, quantity, whether market or limit order, order price (order unit price which is a limit order; however, this may not be necessary in the case of a market order), and buy / sell classification) transmitted from the user terminal 90 via the network as input operation information for a new buy transaction or a new short transaction of US stocks on margin, and stores the accepted order data in the US stock margin order data storage means 42 (see Figure 5) in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) of the customer who placed the order and the assigned order identification information (order ID).It also uses the order data to create order data (including order identification information, stock identification information, quantity, whether market or limit order, order price (order unit price which is a limit order; however, this may not be necessary in the case of a market order), and buy / sell classification), and executes the process of transmitting the created order data to the US intermediary system 80 via the network.

[0062] <Configuration of 24 US stock margin repayment trading instruments>

[0063] The US stock margin repayment trading means 24 receives designation information (selection information of the unrepaid position to be the target of the repayment transaction, and designation information for repayment of all or part of the quantity of the selected unrepaid position) transmitted from the user terminal 90 via the network as input operation information for a repayment transaction by a counter trade for the unrepaid position stored in the US stock margin position storage means 44, and uses the selection information and designation information for the unrepaid position that has been received to select the same stock identification information (stock code) as the open position, the same quantity (number of shares) as the contracted quantity of the open position, or in the case of partial repayment (if partial repayment has already been made), The system creates repayment order data including a repayment order quantity, which is a partial quantity (number of shares) of the open position (or a further partial repayment if the open position has been placed), a repayment order price (a repayment order unit price which is a limit order: however, this may not be necessary in the case of a market order), and a buy / sell category opposite to the buy / sell category (position category), stores the created repayment order data in the US stock margin order data storage means 42 (see Figure 5), and also creates repayment order data including order identification information (order ID) for the repayment transaction using the repayment order data, and transmits the created repayment order data to the brokerage system 80 via the network.

[0064] <Configuration of US stock margin contract processing means 25>

[0065] The US stock margin contract processing means 25 receives contract data (including order identification information, stock identification information, contract quantity, contract price, and buy / sell classification) transmitted from the brokerage system 80 via the network, and performs processing to associate the received contract data with customer identification information (customer ID and customer sub-ID for the US stock margin trading account) and store it in the US stock margin contract data storage means 43.

[0066] The contract data received from the intermediary system 80 includes contract data for new short transactions, including order identification information (order ID) for new long or short margin transactions of U.S. stocks, and contract data for repayment transactions, including order identification information (order ID) for repayment transactions.

[0067] <Configuration of US Equity Margin Position Management Instrument 26>

[0068] When the order identification information (order ID) of the contract data received from the intermediary system 80 is the order identification information (order ID) of a new buy transaction or a new sell transaction stored in the US stock margin order data storage means 42, the US stock margin position management means 26 executes a process of storing the order identification information, stock identification information, contract quantity, contract price, and buy / sell classification contained in the contract data in the US stock margin position storage means 44 in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) as a US stock margin trading position.

[0069] In addition, when the US stock margin position management means 26 receives agreement data for a repayment transaction (including the order ID for the repayment transaction) from the intermediary system 80, it also executes a process of storing information that the repayment transaction for the position has been completed in the US stock margin position storage means 44 (a process of changing the status to "repayment completed").

[0070] <Configuration of USD Margin Transfer Instrument 27>

[0071] The US dollar margin transfer means 27 executes a yen deposit-US dollar margin transfer process (see Figure 2) or a US dollar deposit-US dollar margin transfer process (see Figure 3) according to the customer's selection based on input operation information by the customer or their input agent to increase the amount of the US dollar margin stored in the US dollar margin storage means 45.

[0072] Here, the yen deposit / US dollar margin transfer process is a process in which, for the yen deposit / US dollar margin transfer amount specified by the customer in yen or US dollars (see transfer amount input / designation screen 100 in Figure 2), a transfer process from the yen deposit to the US dollar deposit and a transfer process from the US dollar deposit to the US dollar margin are carried out consecutively in one go. In this case, the customer specifies the transfer amount (here, the yen deposit / US dollar margin transfer amount) without being aware that a two-stage transfer process is being carried out. Note that, although in this embodiment, the yen deposit / US dollar margin transfer amount can be specified in either yen or US dollars, it may also be configured so that it can only be specified in one currency.

[0073] On the other hand, the US dollar deposit / US dollar margin transfer process is a process that transfers the US dollar deposit / US dollar margin transfer amount specified by the customer in US dollars (see transfer amount input / designation screen 110 in Figure 3) from the US dollar deposit to the US dollar margin.

[0074] (Transfer processing of yen deposits and US dollar margin deposits) More specifically, when executing the yen deposit-US dollar security deposit transfer process, the US dollar security deposit transfer means 27 first receives the transfer amount (yen deposit-US dollar security deposit transfer amount specified in yen or US dollars) specified by the customer or their agent through input operations on the transfer amount input / designation screen 100 in Figure 2 from the user terminal 90 via the network. Note that an explanation will be given below using specific numerical examples in Figure 2.

[0075] (First stage of transfer processing for yen deposits and US dollar margin deposits) Next, US dollar deposit transfer means 27 subtracts the yen deposit-US dollar deposit transfer amount, which is the yen deposit-US dollar deposit transfer amount specified in yen or the yen deposit-US dollar deposit transfer amount specified in US dollars converted into a yen amount at the exchange rate stored in exchange information storage means 46, from the yen deposit amount stored in yen deposit storage means 53 in association with the customer identification information for the customer who made the transfer, and adds the yen deposit-US dollar deposit transfer amount, which is the yen deposit-US dollar deposit transfer amount specified in yen converted into a US dollar amount at the exchange rate, or the yen deposit-US dollar deposit transfer amount specified in US dollars, to the US dollar deposit amount stored in US dollar deposit storage means 52 in association with the customer identification information for the customer who performed the input operation.

[0076] (Later transfer process for yen deposits and US dollar margin deposits) Furthermore, the US dollar deposit transfer means 27 subtracts the same amount (i.e., the yen deposit-US dollar deposit transfer amount (US dollars)) as the amount added to the US dollar deposit amount stored in the US dollar deposit storage means 52 from the US dollar deposit amount stored in the US dollar deposit storage means 52, and adds the same amount (i.e., the yen deposit-US dollar deposit transfer amount (US dollars)) as the amount of US dollars subtracted from the US dollar deposit to the US dollar deposit amount stored in the US dollar deposit storage means 45 in association with the customer identification information for the customer who performed the input operation.

[0077] (US dollar deposit / US dollar margin transfer processing) Furthermore, when executing the US dollar deposit / US dollar guarantee transfer process, the US dollar guarantee transfer means 27 first receives the transfer amount (US dollar deposit / US dollar guarantee transfer amount specified in US dollars) specified by the customer or their input agent through input operations on the transfer amount input / designation screen 110 in Figure 3 from the user terminal 90 via the network. Note that an explanation will be given below using specific numerical examples in Figure 3.

[0078] Next, the US dollar margin transfer means 27 subtracts the US dollar deposit / US dollar margin transfer amount specified in US dollars from the US dollar deposit amount stored in the US dollar deposit storage means 52, and adds the same amount in US dollars subtracted from the US dollar deposit (i.e., the US dollar deposit / US dollar margin transfer amount (US dollars)) to the US dollar margin amount stored in the US dollar margin storage means 45 in association with the customer identification information for the customer who performed the input operation.

[0079] <Configuration of exchange information acquisition means 28>

[0080] The exchange information acquisition means 28 acquires exchange information (including the exchange rate used to convert between yen and US dollars) transmitted from the exchange information providing system 71 via the network, and performs a process of storing the information in the exchange information storage means 46.

[0081] <Configuration of US Stock Margin Trading Inquiry Method 29>

[0082] The US stock margin trading inquiry means 29 executes a process to display various data related to the customer's US stock margin trading on the screen of the user terminal 90 using the information stored in each storage means 40 to 48, 52, and 53 in response to a customer's reference request transmitted from the user terminal 90 via the network.

[0083] For example, the US stock margin trade inquiry means 29 uses information stored in the US stock margin position storage means 44 (see FIG. 5) to display an open position list screen 150 as shown in FIG. 10 on the screen of the user terminal 90. When settlement date data is displayed on the open position list screen 150, the settlement date is highlighted in red or the like. This settlement date data is obtained from the US stock margin trade name information storage means 48 (see FIG. 4).

[0084] Furthermore, if a margin call is incurred by the customer, the US stock margin transaction inquiry means 29 also executes a process of, after logging in, using information stored in a margin call storage means (not shown), push-displaying a notification screen 120 as shown in Fig. 9 on the screen of the user terminal 90 operated by the logged-in user. The notification screen 120 in Fig. 9 is provided with a display section 130 for a notification of the occurrence of additional margin (margin call) and a display section 140 for a notification of the occurrence of a US dollar margin request. Details of margin calls will be described later using Fig. 8.

[0085] <Configuration of the 30 US stock margin trading stock registration instruments>

[0086] The US stock margin trading stock registration means 30 accepts registration information (registration information about stocks handled in US stock margin trading) entered by the system administrator and transmitted from the administrator terminal 91 via the network, and executes processing to store the accepted registration information in the US stock margin trading stock information storage means 48. Here, the registration information includes stock identification information (stock code), market identification information (market code), margin trading availability information, substitution availability information (information on whether the stock is non-substitutable or not), valuation price (updated with the current price obtained from the stock price information storage means 41), substitute margin rate (60% or 70%, etc.), settlement date, etc., as shown in Fig. 4.

[0087] <Configuration of U.S. Stock Substitute Securities Transfer Instrument 31>

[0088] (Basic processing of US stock substitute securities book-entry transfer instrument 31) The U.S. stock substitute securities book-entry transfer means 31 executes a process of storing, in the U.S. stock substitute securities storage means 47, the entire holding quantity of substitute securities issues, excluding non-substitutable issues that are predetermined as issues that cannot be deposited as U.S. stock substitute securities, among the issues held by customers and stored in the U.S. stock balance storage means 51, as the deposit quantity for the substitute securities issues. This process by the U.S. stock substitute securities book-entry transfer means 31 is realized by a mirroring process that maintains a state in which the customer's holding quantity stored in the U.S. stock balance storage means 51 matches the customer's deposit quantity stored in the U.S. stock substitute securities storage means 47. Therefore, data management is not performed such that the holding quantity in the U.S. stock balance storage means 51 becomes zero shares after the deposit of substitute securities. In other words, the processing of this U.S. stock substitute securities book-entry transfer means 31 pledges the entire holding quantity as collateral, excluding non-substitutable issues, so that the deposit quantity of each issue stored in the U.S. stock substitute securities storage means 47 is a copy of the holding quantity of each issue stored in the U.S. stock balance storage means 51, and the balance of substitute securities fluctuates as the balance of the actual securities increases or decreases. This mirroring processing is also performed when opening a U.S. stock margin trading account.

[0089] Specifically, as shown in Figure 4, suppose a customer (customer ID = K1, secondary customer ID for foreign securities account = KG1) holds 300 shares of company α, 500 shares of company β, 400 shares of company γ, and 200 shares of company δ in US stock balance storage means 51, and of these, company δ is a non-substitutable stock. As shown in Figure 4, the fact that company δ is a non-substitutable stock is stored in US stock margin trading stock information storage means 48 in association with stock identification information (stock code). In addition, non-substitutable stocks due to the personal circumstances of each customer are stored in customer information storage means (not shown) in association with customer identification information (customer ID).

[0090] When processing is performed by the U.S. stock substitute securities book-entry transfer means 31, the holding quantities (number of shares) of Company α, Company β, and Company γ stored in the U.S. stock balance storage means 51 are maintained as they are (therefore, they do not change to zero shares), and records of 300 shares of Company α, 500 shares of Company β, and 400 shares of Company γ are created in the U.S. stock substitute securities storage means 47. On the other hand, because Company δ is a non-substitutable stock, transfer processing is not performed, the holding quantity (number of shares) of Company δ stored in the U.S. stock balance storage means 51 remains unchanged, and no record of Company δ is created in the U.S. stock substitute securities storage means 47.

[0091] Furthermore, when records for 300 shares of company α, 500 shares of company β, and 400 shares of company γ are created in the U.S. stock substitute securities storage means 47, each record stores the substitute securities collateral appraisal amount calculated by the claim calculation processing means 33. This calculation processing by the claim calculation processing means 33 is the same as the reconciliation processing performed after the end of trading on each business day.

[0092] (Processing of physical purchases of US stock substitute securities transfer instrument 31) In addition, when a customer purchases U.S. stocks through spot trading using the foreign securities trading system 60 and the holding quantity of the issue related to the purchase stored in the U.S. stock balance storage means 51 in association with the customer's customer identification information (customer ID and customer sub-ID for the foreign securities account) increases by the purchase quantity, the U.S. stock substitute securities transfer means 31 also automatically executes a process of adding the purchase quantity to the deposit quantity of the issue related to the purchase stored in the U.S. stock substitute securities storage means 47 in association with the customer's customer identification information (customer ID and customer sub-ID for the U.S. stock margin trading account). This process is realized by the above-mentioned mirroring process (a process of maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means 51 and the customer's deposit quantity stored in the U.S. stock substitute securities storage means 47 match for a substitute securities issue). A specific numerical example will be described later with reference to FIG. 6.

[0093] Furthermore, in the data management of the holding quantity in the US stock balance storage means 51, even after the deposit of a substitute security issue, a process is performed to maintain the holding quantity before the deposit (a process that realizes the deposit of substitute securities by mirroring). Therefore, when the holding quantity in the US stock balance storage means 51 increases by the purchase quantity due to a purchase in a spot transaction, the US stock substitute securities transfer means 31 does not need to process the deposit of the increased substitute securities by subtracting the purchase quantity from the increased holding quantity for the issue related to the purchase stored in the US stock balance storage means 51 (a process of subtracting the increase due to the spot purchase and transferring it to the US stock substitute securities storage means 47).

[0094] (Treatment of US Stock Substitute Securities Transfer Instrument 31 when selling in kind) Furthermore, when a customer sells a substitute security issue in a spot transaction of U.S. stocks using the foreign securities trading system 60 and the holding quantity of the sold issue stored in the U.S. stock balance storage means 51 in association with the selling customer's customer identification information (customer ID and secondary customer ID for the foreign securities account) is reduced by the sold quantity, the U.S. stock substitute securities book-entry means 31 also automatically executes a process to reduce the deposit quantity of the sold issue stored in the U.S. stock substitute securities storage means 47 in association with the customer's customer identification information (customer ID and secondary customer ID for the U.S. stock margin trading account) by the sold quantity. This process is realized by the aforementioned mirroring process (a process of maintaining a state in which the customer's holding quantity of the substitute security issue stored in the U.S. stock balance storage means 51 matches the customer's deposit quantity stored in the U.S. stock substitute securities storage means 47). Note that a description will be given using specific numerical examples in FIG. 7, which will be described later.

[0095] <Configuration of US Stock Sales Proceeds Transfer Instrument 32>

[0096] When a process for selling a substitute security issue is performed by the US stock substitute securities transfer means 31 (i.e., when a customer sells a substitute security issue in a spot transaction of US stocks using the foreign securities trading system 60 and the holding quantity of the issue related to the customer's sale stored in the US stock balance storage means 51 is reduced by the sold quantity, the US stock selling proceeds transfer means 32 reflects this in the deposit quantity of the issue related to the customer's sale stored in the US stock substitute securities storage means 47 by mirroring processing, thereby reducing the deposit quantity by the sold quantity), The system automatically executes the following process: the sales proceeds in US dollars obtained from the sale are added to the US dollar deposit stored in US dollar deposit storage means 52 in association with the customer identification information (customer ID and customer sub-ID for the foreign securities account) of the customer who made the sale; the system also subtracts an amount equal to the sales proceeds from the US dollar deposit stored in US dollar deposit storage means 52; and the system also automatically executes the following process: the sales proceeds in US dollars obtained from the sale are added to the US dollar margin amount stored in US dollar margin storage means 45 in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) of the customer who made the sale. Note that a description will be given using specific numerical examples in FIG. 7, which will be described later.

[0097] <Configuration of billing calculation processing means 33>

[0098] The billing calculation processing means 33 calculates the contract amount calculated from the contract quantity and contract unit price for each customer's open position stored in the US stock margin position storage means 44, and the valuation profit and loss of the open position calculated using the market price information (market unit price) of the open position stored in the stock price information storage means 46, the amount of the US dollar margin stored in the US dollar margin storage means 45 in association with each customer's customer identification information (customer ID and customer sub-ID for the US stock margin trading account), and the amount of the substitute securities stored in the US stock substitute securities storage means 47 in association with each customer's customer identification information (customer ID and customer sub-ID for the US stock margin trading account). Using the deposited quantity of securities names, current price information (current unit price) of substitute securities names stored in stock price information storage means 41, and the substitute securities collateral valuation amount calculated using a predetermined substitute multiplier (see FIG. 4), after the end of trading on each business day, the margin maintenance rate for each customer is calculated using a predetermined margin maintenance rate calculation formula, and if it is determined that there is a customer whose calculated margin maintenance rate is below a predetermined minimum margin maintenance rate, a process is executed to calculate a US dollar margin call amount indicating the amount of additional US dollar margin required to restore the margin maintenance rate of that customer to the predetermined required margin maintenance rate. Note that an explanation will be given using specific numerical examples in FIG. 8, which will be described later.

[0099] <Configuration of the automatic margin call transfer means 34>

[0100] The automatic margin call transfer means 34 executes a process of subtracting the US dollar margin call amount calculated by the claim calculation processing means 33 from the amount of US dollar deposit stored in the US dollar deposit storage means 52 in association with the customer identification information of the customer (customer ID and sub-customer ID for the foreign securities account), and adding the US dollar margin call amount to the amount of US dollar margin stored in the US dollar margin storage means 45 in association with the customer identification information of the customer (customer ID and sub-customer ID for the US stock margin trading account). Note that an explanation will be given using specific numerical examples in Figure 8, which will be described later.

[0101] <Configuration of US stock margin trading account information storage means 40>

[0102] As shown in Figure 2, the US stock margin trading account information storage means 40 stores the number of the general securities account (customer ID, which is customer identification information) and the customer sub-ID, which is customer identification information for the US stock margin trading account, in association with each other. Note that a column for the customer sub-ID, which is customer identification information for the foreign securities account, may also be provided.

[0103] <Configuration of stock price information storage means 41>

[0104] The stock price information storage means 41 stores the current price information (current unit price) of each US stock acquired from the US stock current price information providing system 70 in association with stock identification information (stock code).

[0105] <Configuration of US stock margin order data storage means 42>

[0106] As shown in Figure 5, the US stock margin order data storage means 42 stores the order identification information (order ID), stock identification information (stock code), quantity (number of shares), buy / sell classification, market order / limit order, price in the case of a limit order, and status for US stock margin trading orders placed by a customer, in association with customer identification information (customer ID and customer sub-ID for the US stock margin trading account).

[0107] <Configuration of US stock margin contract data storage means 43>

[0108] As shown in Figure 5, the US stock margin trading data storage means 43 stores the order identification information (order ID), stock identification information (stock code), contract quantity (number of shares), trading category, contract price, and contract amount for a contracted US stock margin trading order in association with customer identification information (customer ID and customer sub-ID for the US stock margin trading account).

[0109] <Configuration of US stock margin position storage means 44>

[0110] As shown in Figure 5, the US stock margin position storage means 44 stores the order identification information (order ID), stock identification information (stock code), contract quantity (open quantity) (number of shares), buy / sell classification (open classification), contract price, and contract amount contained in the contract data of a new buy transaction or a new sell transaction for margin trading of US stocks, as well as the current value of the open position, open position valuation amount, valuation profit / loss, settlement profit / loss, fees, miscellaneous expenses, and status in association with customer identification information (customer ID and customer sub-ID for US stock margin trading account) as an open position for margin trading of US stocks.

[0111] <Configuration of US Dollar Guarantee Deposit Storage Means 45>

[0112] The US dollar margin storage means 45 stores the amount (balance) of the US dollar margin for a US stock margin account opened for margin trading of US stocks, in association with customer identification information (customer ID and sub-customer ID for the US stock margin trading account). It also stores past balances and amounts of deposits and withdrawals in association with date and time information. This US dollar margin is money that the customer has deposited with the securities company as collateral for margin trading of US stocks. Therefore, the US dollar margin amount referred to here is the amount deposited as money, and not the total US dollar margin amount, which is the amount of the US dollar margin (money) plus the assessed value of the substitute securities collateral.

[0113] <Configuration of exchange information storage means 46>

[0114] The exchange information storage means 46 stores exchange information (including the exchange rate used for converting between yen and US dollars).

[0115] <Configuration of U.S. Stock Substitute Securities Storage Means 47>

[0116] As shown in Figure 4, the US stock substitute securities storage means 47 stores the stock identification information (stock code), deposited quantity (number of shares), and substitute securities collateral valuation amount for the US stock substitute securities in the US stock margin trading account that the customer has deposited with the securities company as collateral for margin trading of US stocks other than the US dollar margin deposit in the US stock margin trading account, in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account).

[0117] <Configuration of US stock margin trading issue information storage means 48>

[0118] 4, the US stock margin trading stock information storage means 48 stores, in association with each other, stock identification information (stock code), market identification information (market code), margin trading availability information, substitution availability information (information on whether the stock is non-substitutable), valuation price (current market price obtained from the stock price information storage means 41), substitute rate (60% or 70%, etc.), and settlement date for stocks handled in US stock margin trading. As for the settlement date, since normal stocks have no expiration date, it is left blank, but for stocks that have a settlement date due to delisting, merger, etc., that date data is stored.

[0119] <Configuration of foreign securities account information storage means 50>

[0120] As shown in Figure 2, the foreign securities account information storage means 50 stores the number of the general securities account (customer ID, which is customer identification information) and the customer sub-ID, which is customer identification information for the foreign securities account, in association with each other. Note that a column for the customer sub-ID, which is customer identification information for the US stock margin trading account, may also be provided.

[0121] <Configuration of US stock balance storage means 51>

[0122] As shown in Figure 4, the US stock balance storage means 51 stores the holding quantity (number of shares) and stock identification information (stock code) of US stocks in a foreign securities account opened for spot trading of foreign securities, in association with customer identification information (customer ID and customer sub-ID for the foreign securities account). It also stores the past holding quantity (number of shares) and the quantity (number of shares) deposited and withdrawn, in association with date and time information. A column for the customer sub-ID, which is customer identification information for a US stock margin trading account, may also be provided.

[0123] <Configuration of US Dollar Deposit Storage Means 52>

[0124] The US dollar deposit storage means 52 stores the amount (balance) of US dollar deposits in foreign securities accounts in association with customer identification information (customer ID and customer sub-ID for the foreign securities account). Past balances and amounts of deposits and withdrawals are also stored in association with date and time information. A column for the customer sub-ID, which is customer identification information for US stock margin trading accounts, may also be provided.

[0125] <Configuration of yen deposit storage means 53>

[0126] The yen deposit storage means 53 stores the yen deposit amount (balance) in the foreign securities account in association with customer identification information (customer ID and customer sub-ID for the foreign securities account). Past balances and amounts of deposits and withdrawals are also stored in association with date and time information. A column for the customer sub-ID, which is customer identification information for the US stock margin trading account, may also be provided.

[0127] <Flow chart for opening a US stock margin trading account and depositing US dollar margin from yen deposit: Figure 2>

[0128] 2, the US stock margin trading account opening means 21 receives information on a customer's request to open a US stock margin trading account, which information is transmitted from the user terminal 90 via the network, and executes the process of opening the US stock margin trading account (step S1). Specifically, the US stock margin trading account opening means 21 assigns a customer sub-ID, which is customer identification information for the US stock margin trading account, to the customer who has made the account opening request, and stores the assigned customer sub-ID in the US stock margin trading account information storage means 40 in association with the number of the general securities account (customer ID, which is customer identification information).

[0129] At the time of making this account opening request, the customer is already a customer of the securities company, and therefore, the customer's name, contact information such as telephone number and email address, address, and other customer information are stored in customer information storage means (not shown) in association with a customer ID (comprehensive securities account number). Also, if the customer has opened a foreign securities account, the customer has already been assigned a sub-ID, which is customer identification information for the foreign securities account, and this sub-ID is stored in foreign securities account information storage means 50 in association with the comprehensive securities account number (customer ID, which is customer identification information). In this embodiment, as an example, a customer who already has a foreign securities account opens a new US stock margin trading account, but it may also be possible to open a US stock margin trading account even if the customer does not have a foreign securities account. In that case, it is preferable that the records of each storage means 50 to 53 (each record of each table that makes up the database) have a column for the general securities account number (customer ID, which is customer identification information), a column for the customer secondary ID, which is customer identification information for the foreign securities account, and a column for the customer secondary ID, which is customer identification information for the US stock margin trading account.

[0130] The client then provides the securities company with collateral to conduct margin trading of US stocks. Figure 2 explains the yen deposit-US dollar margin transfer process (the process of transferring the yen deposit to the US dollar margin via the US dollar deposit).

[0131] Specifically, first, the user (the customer or their agent) inputs and specifies the yen deposit / US dollar security deposit transfer amount on transfer amount input / specification screen 100 shown in Fig. 2, which is displayed on the screen of user terminal 90 by US dollar security deposit transfer means 27. This transfer amount input / specification screen 100 has display sections 101, 102 for the transferable amount of the yen deposit and its US dollar equivalent, as well as an input section 103 for inputting the transfer amount (here, the yen deposit / US dollar security deposit transfer amount) in yen and an input section 104 for inputting the US dollar amount. For example, if a customer holds a yen deposit of 600,000 yen in yen deposit storage means 53 and the exchange rate stored in exchange information storage means 46 is 1 dollar = 150 yen, display section 101 will display 600,000 yen, and display section 102 will display 4,000 dollars (=600,000÷150). Seeing this, it is assumed that the customer inputs 450,000 yen in Japanese yen into input section 103 or 3,000 dollars in US dollars into input section 104.

[0132] Then, when the user presses the "Execute" button (not shown) on the screen, the entered yen deposit / US dollar margin transfer amount (in yen or US dollars) is sent via the network to the US dollar margin transfer means 27, which then accepts this yen deposit / US dollar margin transfer amount (step S2).

[0133] (First stage of transfer processing for yen deposits and US dollar margin deposits) Next, the US dollar security deposit transfer means 27 converts the yen deposit / US dollar security deposit transfer amount (e.g., 450,000 yen) designated in yen or the yen deposit / US dollar security deposit transfer amount (e.g., 3,000 dollars) designated in US dollars into a yen amount at the exchange rate stored in the exchange information storage means 46, and stores the yen deposit / US dollar security deposit transfer amount (e.g., 450,000 yen) in the yen deposit information stored in the yen deposit storage means 53 in association with the customer identification information of the customer who made the transfer. The yen deposit-US dollar margin transfer amount (e.g., 3,000 dollars) specified in yen (e.g., 450,000 yen) is converted into a US dollar amount at the exchange rate, and the yen deposit-US dollar margin transfer amount (e.g., 3,000 dollars) specified in US dollars (e.g., 3,000 dollars) is added to the US dollar deposit amount stored in US dollar deposit storage means 52 in association with the customer identification information of the customer who performed the input operation (step S3). As a result, the yen amount stored in yen deposit storage means 53 changes from 600,000 yen to 150,000 yen (=600,000 yen-450,000 yen), and the US dollar deposit amount stored in US dollar deposit storage means 52 changes, for example, from 800 dollars to 3,800 dollars (=800 dollars+3,000 dollars).

[0134] (Later transfer process for yen deposits and US dollar margin deposits) Furthermore, US dollar deposit transfer means 27 subtracts from the US dollar deposit amount stored in US dollar deposit storage means 52 the same amount as the amount added to the US dollar deposit amount stored in US dollar deposit storage means 52 (i.e., yen deposit-US dollar deposit transfer amount = 3,000 dollars), and adds the same amount in US dollars as the amount subtracted from the US dollar deposit (i.e., yen deposit-US dollar deposit transfer amount = 3,000 dollars) to the US dollar deposit amount stored in US dollar deposit storage means 45 in association with the customer identification information of the customer who performed the input operation (step S4). As a result, the US dollar deposit amount stored in US dollar deposit storage means 52 changes from 3,800 dollars to 800 dollars, and the US dollar deposit amount stored in US dollar deposit storage means 45 changes, for example, from 0 dollars to 3,000 dollars. In addition, the subtraction of the collateral amount from the amount of US dollar deposit stored in the US dollar deposit storage means 52 may be a virtual subtraction; for example, instead of changing it from $3,800 to $800, it may remain at $3,800, and another column in the same record (the collateral amount column indicating a negative element) may store the data $3,000, which means minus $3,000.

[0135] <Flow of US dollar margin deposit from US dollar deposit: Figure 3>

[0136] Alternatively, a customer may perform the operations shown in Figure 3 as a separate operation to provide collateral to a securities company for margin trading of US stocks. Figure 3 explains the US dollar deposit-US dollar margin transfer process (the process of transferring US dollar deposit to US dollar margin).

[0137] Specifically, first, the user (the customer or their agent) inputs and specifies the US dollar deposit / US dollar margin transfer amount on the transfer amount input / specification screen 110 of Fig. 3, which is displayed on the screen of the user terminal 90 by the US dollar margin transfer means 27. This transfer amount input / specification screen 110 has a display section 111 of the transferable amount of the US dollar deposit and an input section 112 for the transfer amount (here, the US dollar deposit / US dollar margin transfer amount) in US dollars. For example, if the customer holds a US dollar deposit of 800 dollars in the US dollar deposit storage means 52, then 800 dollars is displayed on the display section 111. Seeing this, let's say the customer inputs 500 dollars in US dollars into the input section 112.

[0138] Then, when the user presses the "Execute" button (not shown) on the screen, the entered US dollar deposit / US dollar margin transfer amount (US dollars) is sent via the network to the US dollar margin transfer means 27, which then accepts this US dollar deposit / US dollar margin transfer amount (step S11).

[0139] Next, US dollar margin transfer means 27 subtracts the US dollar deposit / US dollar margin transfer amount (e.g., $500) specified in US dollars from the US dollar deposit amount (e.g., $800) stored in US dollar deposit storage means 52, and adds the same amount as the US dollar amount subtracted from the US dollar deposit (i.e., US dollar deposit / US dollar margin transfer amount = $500) to the US dollar margin amount stored in US dollar margin storage means 45 in association with the customer identification information of the customer who performed the input operation (step S12). As a result, the US dollar deposit amount stored in US dollar deposit storage means 52 changes from $800 to $300 (= $800 - $500), and the US dollar margin amount stored in US dollar margin storage means 45 changes, for example, from $3,000 to $3,500 (= $3,000 + $500).

[0140] <Flow of order acceptance, placement, and execution for new US stock margin trades and their repayment transactions: Figure 5>

[0141] In FIG. 5, the US stock margin new order trading means 23 accepts customer order data (including stock identification information, quantity, market / limit order, order price in the case of limit order, and buy / sell category) transmitted via the network from the user terminal 90 as input operation information for a new buy or sell margin transaction of US stocks. The accepted order data is stored in the US stock margin order data storage means 42 (see FIG. 5) in association with the customer identification information (customer ID and sub-customer ID for the US stock margin trading account) and the assigned order identification information (order ID) for the customer who placed the order (step S21). In this case, the stocks that the customer can order as a new buy or sell margin transaction of US stocks are those for which the margin trading availability information stored in the US stock margin trading stock information storage means 48 (see FIG. 4) is set to "available." For example, suppose a market order is placed for company σ stock, with a quantity of 200 shares and a buy / sell category.

[0142] The amount that a customer can buy or sell in margin trading of U.S. stocks (amount that can be ordered for long and short transactions) is the sum of the amount of the customer's U.S. dollar margin stored in the U.S. dollar margin storage means 45 and the total amount of the substitute securities collateral valuation for all of the customer's substitute securities stored in the U.S. stock substitute securities storage means 47 (hereinafter referred to as the ``total U.S. dollar margin amount'') up to the predetermined maximum leverage (normally set to 2x).

[0143] Then, the US stock margin new trade means 23 uses the order data to create order placement data (including, for example, the assigned order ID, stock name = σ company stock, quantity = 200 shares, trade classification = buy, market order / limit order = market order), and transmits the created order placement data to the US intermediary system 80 via the network (step S22).

[0144] In the brokerage system 80, a U.S. stock order placing means 81 receives order data transmitted via the network from the U.S. stock margin new order trading means 23 of the U.S. stock margin trading system 10, and transmits the received order data via a communication line to the U.S. exchange system 85. Thereafter, a U.S. stock completion notifying means 82 receives contract data (including, for example, order ID, name = σ company stock, contract quantity = 200 shares, trading classification = buy, contract price = $19, contract amount = $3,800) transmitted via the communication line from the U.S. exchange system 85, and transmits the received contract data via the network to the U.S. stock margin contract processing means 25 of the U.S. stock margin trading system 10.

[0145] Next, in the US stock margin trading system 10, the US stock margin contract processing means 25 receives the contract data sent from the intermediary system 80, associates the received contract data with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) and stores it in the US stock margin contract data storage means 43 (see Figure 5), and also associates it with the order ID included in the contract data and sets the status of the order record stored in the US stock margin order data storage means 42 (see Figure 5) to "contracted" (step S23).

[0146] Furthermore, if the order identification information (order ID) of the contract data received from the brokerage system 80 is the order identification information (order ID) of a new long transaction or a new short transaction stored in the US stock margin order data storage means 42, the US stock margin position management means 26 associates the order identification information, stock identification information (= σ company stock), contract quantity (= 200 shares), contract price (= 19 dollars), contract amount (= 3,800 dollars), and trading category (= long) contained in the contract data with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) and stores them in the US stock margin position storage means 44 as position data for the US stock margin transaction (step S24).

[0147] Thereafter, the US stock margin repayment trading means 24 receives designation information (selection information of the unrepaid position to be the target of the repayment transaction, and designation information for repayment of all or a part of the quantity of the selected unrepaid position) transmitted from the user terminal 90 via the network as input operation information for a repayment transaction by a counter trade for the unrepaid position stored in the US stock margin position storage means 44, and uses the selection information of the unrepaid position and the designation information for repayment that have been received to perform a repayment transaction by a counter trade for the unrepaid position with the same stock identification information (stock code) as the stock identification information of the open position, the same quantity (number of shares) as the contracted amount of the open position, or in the case of a partial repayment ( (This may be a further partial repayment when a partial repayment has already been made.) The repayment order data is created, including the repayment order quantity, which is the partial quantity (number of shares) of the original order, the repayment order price (the repayment order unit price, which is a limit order: however, this may not be necessary in the case of a market order), and a buy / sell category opposite to the buy / sell category (position category) of the open position, and the created repayment order data is stored in the US stock margin order data storage means 42 (see Figure 5) in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) of the customer who placed the repayment order and the assigned order identification information (order ID for repayment trading) (step S25). Here, as the target for the repayment transaction, for example, data on the outstanding open position is selected, including stock identification information (= σ Company stock), contract quantity (= 200 shares), contract unit price (= 19 dollars), contract amount (= 3,800 dollars), and trading classification (= buy), and further, as the repayment order quantity, all or part of the contract quantity of the outstanding open position (here, the full quantity, 200 shares) is specified, and a repayment order price (= 20 dollars) (however, this may also be a market order) is specified, and repayment order data is created, including stock identification information (= σ Company stock), repayment order quantity (= 200 shares), repayment order price (= 20 dollars) (however, this may also be a market order), and trading classification (= sell / fill).

[0148] Then, the US stock margin repayment trading means 24 uses the repayment order data to create repayment order data including order identification information (order ID) for the repayment transaction (for example, including the order ID for the repayment transaction, stock identification information = σ company stock, quantity = 200 shares, trading category = sell, limit price = $20 (however, market order / limit price classification = market order)), and transmits the created repayment order data to the intermediary system 80 via the network (step S26).

[0149] In the brokerage system 80, the US stock order means 81 receives the repayment order data transmitted via the network from the US stock margin repayment trading means 24 of the US stock margin trading system 10, and transmits the received repayment order data via a communication line to the US exchange system 85. Thereafter, the US stock performance notification means 82 receives the contract data for the repayment transaction (including, for example, the order ID for the repayment transaction, issue = σ company stock, contract quantity = 200 shares, trading classification = sell, contract price = 20 dollars, and contract amount = 4,000 dollars) transmitted via the communication line from the US exchange system 85, and transmits the received contract data for the repayment transaction to the US stock margin contract processing means 25 of the US stock margin trading system 10 via the network.

[0150] Next, in the US stock margin trading system 10, the US stock margin contract processing means 25 receives the contract data for the repayment transaction sent from the intermediary system 80, associates the received contract data for the repayment transaction with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) and stores it in the US stock margin contract data storage means 43 (see Figure 5), and also associates it with the order ID for the repayment transaction included in the contract data and sets the status of the record for the repayment order stored in the US stock margin order data storage means 42 (see Figure 5) to "contracted" (step S27).

[0151] Then, when the US stock margin position management means 26 receives agreement data for the repayment transaction (including the order ID for the repayment transaction) from the intermediary system 80, it executes a process to store information that the repayment transaction for the position has been completed in the US stock margin position storage means 44 (a process to calculate and store the settlement profit and loss and change the status to "repayment completed") (step S28).

[0152] <Flow of book-entry transfer to US stock substitute securities when US stocks are purchased through spot trading: Figure 6>

[0153] 6, when a customer purchases U.S. stocks through spot trading using foreign securities trading system 60, the customer transmits order data for a buy order for the U.S. stocks from user terminal 90 via a network. In foreign securities trading system 60, foreign securities trading means 61 accepts the customer's order data and stores the accepted order data in order data storage means for spot trading (not shown) in association with customer identification information (customer ID and customer sub-ID for the foreign securities account) (step S31). This order data may, for example, be: issue = Company ε stock, quantity = 400 shares, trading type = buy, and market / limit order type = market.

[0154] Then, the foreign securities trading means 61 uses the order data to create order data (including, for example, the assigned order ID, stock name = ε company stock, quantity = 400 shares, trading category = buy, market order / limit order = market order), and transmits the created order data to the US intermediary system 80 via the network (step S32).

[0155] In the brokerage system 80, the U.S. stock ordering means 81 receives the order data transmitted from the foreign securities trading means 61 of the foreign securities trading system 60 via the network, and transmits the received order data to the U.S. exchange system 85 via a communication line. Thereafter, the U.S. stock performance notification means 82 receives the contract data (including, for example, order ID, issue = ε company stock, contract quantity = 400 shares, trading classification = buy, contract price = 40 dollars, contract amount = 16,000 dollars) transmitted from the U.S. exchange system 85 via the communication line, and transmits the received contract data to the foreign securities trading means 61 of the foreign securities trading system 60 via the network.

[0156] Next, in the foreign securities trading system 60, the foreign securities trading means 61 receives the contract data sent from the intermediary system 80, associates the received contract data with the customer identification information (customer ID and customer sub-ID for the foreign securities account) and stores it in a contract data storage means for spot trading (not shown), and also associates the order ID included in the contract data with the order ID and sets the status of the order record stored in the order data storage means for spot trading (not shown) to "contracted" (step S32).

[0157] Then, the foreign securities trading means 61 increases the holding quantity of the stock related to the purchase (e.g., stock of Company ε) stored in the U.S. stock balance storage means 51 in association with the customer identification information (customer ID and customer sub-ID for the foreign securities account) of the customer who made the purchase by the purchase quantity (e.g., 400 shares) (step S33). Note that if the holding quantity of the stock related to the purchase (e.g., stock of Company ε) is zero shares, the purchase quantity (e.g., 400 shares) is stored as the holding quantity.

[0158] Furthermore, the U.S. stock substitute securities book-entry transfer means 31 automatically executes a process of adding the purchase quantity (e.g., 400 shares) to the deposit quantity for the issue (e.g., stock of Company ε) related to the purchase stored in the U.S. stock substitute securities storage means 47 in association with the customer identification information (customer ID and customer sub-ID for the U.S. stock margin trading account) of the customer who made the purchase (step S34). This process is realized by a mirroring process that replicates the increased holding quantity (the quantity after the process of step S33 above) for the issue (e.g., stock of Company ε) related to the purchase stored in the U.S. stock balance storage means 51.

[0159] <Flow of transfer process to USD margin when US stocks serving as substitute securities are sold in spot trading: Figure 7>

[0160] In Figure 7, when a customer sells U.S. stocks that are substitute securities in a spot transaction using foreign securities trading system 60, the customer confirms that the stocks to be sold have been deposited as substitute securities with the securities company and the deposited quantity using U.S. stock margin transaction inquiry means 29, and then transmits order data for a sell order for U.S. stocks via the network from user terminal 90. This confirmation process by U.S. stock margin transaction inquiry means 29 can be performed by referencing data stored in U.S. stock substitute securities storage means 47. In addition, in this embodiment, the deposit of substitute securities is achieved by mirroring processing, so the holding quantity in U.S. stock balance storage means 51 is maintained even after the collateral is deposited (see Figure 4), and therefore the holding quantity (i.e., the deposited quantity) can also be confirmed using the data reference function of U.S. stock balance storage means 51 provided in foreign securities trading system 60.

[0161] In the foreign securities trading system 60, the foreign securities trading means 61 accepts customer order data, and stores the accepted order data in an order data storage means for spot trading (not shown) in association with customer identification information (customer ID and customer sub-ID for the foreign securities account) (step S41). This order data may be, for example, stock of company α, quantity = 300 shares, trading category = sell, and market / limit order = market.

[0162] Then, the foreign securities trading means 61 uses the order data to create order data (including, for example, the assigned order ID, stock name = Company α stock, quantity = 300 shares, trading category = sell, and market / limit order status = market), and transmits the created order data to the US intermediary system 80 via the network (step S42).

[0163] In the brokerage system 80, the U.S. stock ordering means 81 receives the order data transmitted from the foreign securities trading means 61 of the foreign securities trading system 60 via the network, and transmits the received order data to the U.S. exchange system 85 via a communication line. Thereafter, the U.S. stock performance notification means 82 receives the contract data (including, for example, order ID, issue = company α stock, contract quantity = 300 shares, trading category = sell, contract price = $50, contract amount = $15,000) transmitted from the U.S. exchange system 85 via the communication line, and transmits the received contract data to the foreign securities trading means 61 of the foreign securities trading system 60 via the network.

[0164] Next, in the foreign securities trading system 60, the foreign securities trading means 61 receives the contract data sent from the intermediary system 80, associates the received contract data with the customer identification information (customer ID and customer sub-ID for the foreign securities account) and stores it in a contract data storage means for spot trading (not shown), and also associates the order ID included in the contract data with the order ID and sets the status of the order record stored in the order data storage means for spot trading (not shown) to "contracted" (step S42).

[0165] Furthermore, the foreign securities trading means 61 reduces the holding quantity of the stock (e.g., stock of Company α) related to the sale by the client stored in the U.S. stock balance storage means 51 by the contracted amount of the sell order, i.e., the sale quantity (e.g., 300 shares). In this embodiment, the submission of substitute securities is realized by a mirroring process, so that the holding quantity in the U.S. stock balance storage means 51 is maintained even after the collateral submission and does not become zero shares (see FIG. 4) (step S43).

[0166] Then, the US stock substitute securities book-entry means 31 reduces the deposit quantity for the stock (e.g., Company α stock) related to the sale stored in the US stock substitute securities storage means 47 by the sale quantity (e.g., 300 shares) (step S44). This processing is realized by a mirroring process that replicates the holding quantity after the reduction (the quantity after the processing of step S43 above) for the stock (e.g., Company α stock) related to the sale stored in the US stock balance storage means 51.

[0167] Thereafter, the US stock sales proceeds transfer means 32 adds the US dollar sales proceeds obtained from the sale (e.g., $15,000, excluding fees) to the US dollar deposit stored in the US dollar deposit storage means 52 in association with the customer identification information (customer ID and customer sub-ID for the foreign securities account) of the customer who made the sale (step S45).

[0168] Furthermore, the US stock sales proceeds transfer means 32 automatically subtracts the same amount as the sales price (e.g., 15,000 dollars) from the US dollar deposit stored in the US dollar deposit storage means 52, and adds the same amount as the sales price (e.g., 15,000 dollars) to the US dollar margin amount stored in the US dollar margin storage means 45 in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) of the customer who made the sale (step S46).

[0169] <Flowchart for calculating USD margin call amount and transferring to USD margin: Figure 8>

[0170] In Figure 8, after the end of trading on each business day, the billing calculation processing means 33 executes a reconciliation process to update the substitute securities collateral valuation amount stored in the US stock substitute securities storage means 47 (see Figure 4) and to update the position data (current position value, position valuation amount, valuation profit / loss) stored in the US stock margin position storage means 44 (step S51).

[0171] More specifically, as shown in Figure 4, the billing calculation processing means 33 first uses the current price information (current price unit price) of each stock stored in the stock price information storage means 41 to update the evaluation price unit price of each stock stored in the US stock margin trading stock information storage means 48 to the latest data.

[0172] Next, as shown in Figure 4, the billing calculation processing means 33 calculates the latest substitute securities collateral valuation amount using the quantity of substitute securities names deposited stored in the US stock substitute securities storage means 47 in association with each customer's customer identification information (customer ID and customer sub-ID for the US stock margin trading account), the valuation unit price (i.e., current price information stored in the stock price information storage means 41) and substitute rate stored in the US stock margin trading name information storage means 48, and updates the substitute securities collateral valuation amount stored in the US stock substitute securities storage means 47 (see Figure 4).

[0173] 4, the claim calculation processing means 33 obtains the latest stock price information (current market price) of Company α from the stock price information storage means 41, and updates the valuation price of Company α stored in the US stock margin trading issue information storage means 48 to $50. The US stock substitute securities storage means 47 stores the deposited quantity of Company α, which is 300 shares. By multiplying these 300 shares by the valuation price of Company α, which is $50 stored in the US stock margin trading issue information storage means 48, and the collateral haircut rate of Company α, which is 60%, the substitute securities collateral valuation amount becomes $9,000 (=300 shares × $50 × 60%), and this value is stored in the US stock substitute securities storage means 47 as the updated substitute securities collateral valuation amount.

[0174] In addition, the billing calculation processing means 33 calculates the position valuation amount and valuation profit / loss for the open position name using the contract amount calculated from the contract quantity and contract unit price for each customer's unrepaid open position name stored in the US stock margin position storage means 44 (see Figures 5 and 10) and the latest valuation unit price of the open position name stored in the US stock margin trading name information storage means 48 (see Figure 4) (i.e., the latest market price information of the open position name stored in the stock price information storage means 46), and stores the calculated open position valuation amount and valuation profit / loss, as well as the open position current price used for the calculation (latest valuation unit price, latest market price information), in the US stock margin position storage means 44 (see Figure 5).

[0175] For example, as shown in Figure 10, assume that the outstanding open position is σ company stock, the open quantity = 200 shares, and the contract amount = $3,800 (hence, the contract price = $19). Also, as shown in Figure 10, if the current value of the open position (the valuation price shown in Figure 4) of σ company stock is $20, the open position valuation amount will be $4,000 (= 200 shares × $20), and the contract amount = $3,800, so the valuation profit / loss will be plus $200 (= $4,000 - $3,800).

[0176] Next, the claim calculation processing means 33 calculates the margin maintenance rate for each customer using a predetermined margin maintenance rate calculation formula, and if it is determined that there is a customer whose calculated margin maintenance rate is below the predetermined minimum margin maintenance rate, it calculates a US dollar margin call amount indicating the amount of additional US dollar margin to restore the customer's margin maintenance rate to the predetermined required margin maintenance rate (step S52).The calculated US dollar margin call amount is stored in the margin call storage means (not shown) in association with the customer identification information (customer ID and customer sub-ID for the US stock margin trading account) of the customer, along with the date and time of the margin call.

[0177] In this case, if the sum of the amount of US dollar margin stored in US dollar margin storage means 45 in association with each customer's customer identification information (customer ID and customer sub-ID for US stock margin trading account) and the total amount of substitute securities collateral valuation for all substitute securities issues stored in US stock substitute securities storage means 47 in association with each customer's customer identification information (customer ID and customer sub-ID for US stock margin trading account) is called the "total US dollar margin amount," the margin maintenance rate (percentage value) is calculated by subtracting the "total amount of valuation losses for each open position" from this "total US dollar margin amount," adding the "settlement gains from repayment open positions," dividing the result by the "total amount of contracted amounts for all open positions," and multiplying this by 100. The minimum margin maintenance rate is, for example, 25%, and the required margin maintenance rate is, for example, 30%. In that case, if the margin maintenance rate falls below 25%, the USD margin call amount (the amount of additional USD margin required) is calculated to restore it to 30%. Settlement profits on repayment open positions are calculated by (repayment contract price - contract price of open positions) x repayment contract amount.

[0178] For example, if the USD margin is $500 and the total collateral value of all posted substitute securities is $1,430, the total USD margin amount is $1,930 (= $500 + $1,430). Also, suppose the total unpaid valuation loss on each open position is $210, the settlement gain on repaid open positions is $10, and the total contract amount for the open positions is $7,000. In this case, the margin maintenance rate (percentage) is {($1,930 - $210 + $10) ÷ $7,000} x 100 = 24.7%, which is below 25%. Furthermore, to achieve a margin maintenance rate of 30%, the total USD margin must be 7,000 yen x 30% + 210 USD - 10 USD = 2,300 USD, so the USD margin must be 2,300 USD - 1,430 USD = 870 USD. Therefore, the USD margin call amount is calculated as 870 USD - 500 USD = 370 USD. Information about such margin call occurrences is communicated to the user on the notification screen 120 shown in Figure 9, which is automatically pushed by the US stock margin trading inquiry means 29 after login.

[0179] Thereafter, the automatic margin call transfer means 34 subtracts the US dollar margin call amount (e.g., 370 dollars) calculated by the claim calculation processing means 33 from the amount of the US dollar deposit stored in the US dollar deposit storage means 52 in association with the customer's customer identification information (customer ID and secondary customer ID for the foreign securities account), and adds the US dollar margin call amount (e.g., 370 dollars) to the amount of the US dollar margin stored in the US dollar margin storage means 45 in association with the customer's customer identification information (customer ID and secondary customer ID for the US stock margin trading account) (step S53).

[0180] When a margin call occurs, margin transactions for the next business day are locked and cannot be executed. However, if the margin maintenance rate can be restored to the predetermined required margin maintenance rate by selling substitute securities, repaying open positions, or adding U.S. dollar margin, the lock will be released. Even if the above-mentioned automatic margin call transfer means 34 is performed, it is not necessarily possible to secure the entire calculated U.S. dollar margin call amount from surplus funds in the U.S. dollar deposit, so a separate recovery procedure may be required (see Figure 9). In the example of Figure 9, the U.S. dollar margin call amount is $370, but only $300 could be transferred by the automatic margin call transfer means 34, so the remaining $70 must be secured through a separate procedure.

[0181] <Effects of this embodiment>

[0182] This embodiment has the following advantages. Specifically, since the U.S. stock margin trading system 10 includes the U.S. dollar margin transfer means 27 that executes the yen deposit-to-U.S. dollar margin transfer process, the transfer from the yen deposit to the U.S. dollar deposit and then from the U.S. dollar deposit to the U.S. dollar margin can be automatically executed in one go without requiring two-step operations by the user (the customer or their input agent). Therefore, the user can increase the U.S. dollar margin without being aware of the two-step transfer process via the U.S. dollar deposit, thereby realizing a system that is highly convenient for the user.

[0183] In addition, by linking the yen deposits and US dollar deposits in the foreign securities account with the US dollar margin in the US stock margin trading account, funds can be transferred to secure the US dollar margin that serves as collateral for margin trading, thereby creating a highly convenient system in this respect as well.

[0184] In other words, the US stock margin trading system 10 is constructed as an independent system separate from the existing systems that realize Japanese stock margin trading functions and the existing system that realizes US stock spot trading functions (foreign securities trading system 60) because the service operating hours and balance management are different from these existing systems.However, by partially sharing data and linking the data managed by the existing systems with data specific to US stock margin trading that is generated during the operation of the US stock margin trading system 10, customers can achieve smooth transfers of funds and stock holding information.

[0185] Furthermore, by using the US stock margin trading system 10, US stock margin trading, a new trading system in Japan, has become possible, allowing investors to trade up to the maximum leverage of their own capital (normally set at 2x), and they can receive services that meet the needs of investors in response to the growing popularity of US stocks in recent years.

[0186] In addition, securities companies can expect to earn profits from interest and stock lending fees by lending US dollars and US stocks, providing them with a means to increase their profits in addition to stock trading fees.

[0187] Furthermore, since the U.S. stock margin trading system 10 is equipped with a U.S. stock substitute securities book-entry means 31, by linking U.S. stocks held in a foreign securities account with U.S. stock substitute securities deposited in a U.S. stock margin trading account, it is possible to easily transfer (here, transfer means duplication) stocks to secure the U.S. stock substitute securities that serve as collateral for margin trading. Therefore, in this respect as well, a highly convenient system can be realized.

[0188] Furthermore, in the U.S. stock margin trading system 10, U.S. stocks purchased through spot trading can be automatically transferred to U.S. stock substitute securities by the U.S. stock substitute securities transfer means 31, so when U.S. stocks are purchased through spot trading, the purchased U.S. stocks can be automatically deposited into the U.S. stock substitute securities without the user having to issue a transfer instruction to the U.S. stock substitute securities. Therefore, in this respect as well, a highly convenient system can be realized.

[0189] In this case, the automatic transfer from U.S. stock balance storage means 51 to U.S. stock substitute securities storage means 47 is executed by mirroring processing, so the holding quantity in U.S. stock balance storage means 51 is maintained even after the collateral is posted, meaning that data management that would cause the holding quantity to become zero shares following the posting of collateral is not performed (see Figure 4), so data management for the foreign securities account when buying and selling U.S. stocks in spot trading can be performed separately from data management for the U.S. stock margin trading account. Therefore, there is no need to change the content of the data processing for the foreign securities account when buying and selling U.S. stocks in spot trading (the processing of increasing or decreasing the holding quantity stored in U.S. stock balance storage means 51), and it is possible to avoid the complexity of processing that would accompany data linkage between the foreign securities account and the U.S. stock margin trading account.

[0190] Furthermore, since the U.S. stock margin trading system 10 is equipped with a U.S. stock selling proceeds transfer means 32, when a customer sells a substitute security issue in a U.S. stock spot transaction, the U.S. stock substitute security book-entry transfer means 31 reduces the quantity of U.S. stock substitute security deposited, and then the U.S. stock selling proceeds transfer means 32 adds the sales proceeds to the U.S. dollar deposit, and further, the transfer process for the sales proceeds from the U.S. dollar deposit to the U.S. dollar margin deposit can be automatically executed without the user having to issue a transfer instruction to the U.S. dollar margin deposit. Therefore, in this respect as well, a highly convenient system can be realized.

[0191] Furthermore, since the processing by the U.S. stock substitute securities book-entry transfer means 31 mirrors the deposit of substitute securities, the U.S. stock balance storage means 51 retains the holdings, including the deposited amount, and the sale is made from that amount. However, even when the sale is made, the U.S. stock selling proceeds book-entry transfer means 32 automatically transfers the sales proceeds from the U.S. dollar deposit to the U.S. dollar margin, preventing the customer from using the sales proceeds for other purposes (such as purchasing another stock or transferring the proceeds to yen) and maintaining the security for margin trading. Furthermore, because the U.S. stock selling proceeds book-entry transfer means 32 performs such processing, the customer can proceed with the sale in a spot transaction without particularly worrying about whether the stock they are selling is a substitute security (whether it is used as security for margin trading).

[0192] In addition, the US stock margin trading system 10 is equipped with a US stock margin new opening trading means 23, a US stock margin contract processing means 25, and a US stock margin position management means 26, so that the series of processes of accepting new buy or sell orders for US stock margin trading from users, sending order data to the US, receiving contract data from the US, and managing positions can be smoothly carried out without manual intervention (time-consuming operations and procedures by employees of securities companies in Japan or the US).

[0193] Furthermore, since the US stock margin trading system 10 is equipped with a US stock margin repayment trading means 24, when repayment transactions are made for positions stored in the US stock margin position storage means 44 and closing processing (filling processing) is performed, the series of processes can be carried out smoothly without manual intervention (time-consuming operations and procedures by employees of Japanese or US securities companies), just as when opening processing is performed.

[0194] Furthermore, since the US stock margin trading system 10 is equipped with a claim calculation processing means 33 and a margin call automatic transfer means 34, when a margin call occurs, the US dollar deposit in the foreign securities account and the US dollar margin in the US stock margin trading account can be linked, allowing for smooth transfer of funds to deposit the US dollar margin call amount. Therefore, in this respect as well, a highly convenient system can be realized.

[0195] <Transformation Form>

[0196] The present invention is not limited to the above-described embodiment, and modifications within the scope of the present invention are included in the present invention.

[0197] For example, in the above embodiment, the US dollar margin transfer means 27 was configured to execute a yen deposit-US dollar margin transfer process (see Figure 2) or a US dollar deposit-US dollar margin transfer process (see Figure 3) in accordance with the customer's selection based on input operation information by the customer or their input agent to increase the amount of the US dollar margin stored in the US dollar margin storage means 45. However, the US dollar margin transfer means of the present invention may also be configured to execute a hybrid US dollar margin transfer process that simultaneously transfers from a yen deposit to a US dollar margin and from a US dollar deposit to a US dollar margin, as shown in Figure 11. Note that the reference numeral "27" in the US dollar margin transfer means 27 of the above embodiment will be used as is in this modified form as well.

[0198] In Figure 11, the transfer type selection screen 160 displayed on the screen of the user terminal 90 by the US dollar margin transfer means 27 has a selection section 161 for (1) yen deposit / US dollar margin transfer processing (see Figure 2), (2) a selection section 162 for US dollar deposit / US dollar margin transfer processing (see Figure 3), and (3) a selection section 163 for hybrid US dollar margin transfer processing that performs simultaneous transfer processing from yen deposits and US dollar deposits to US dollar margin.

[0199] When the user selects the selection section 163 for the hybrid US dollar margin transfer process (3), the US dollar margin transfer means 27 displays a hybrid designation screen 170 for transfers from yen deposits and US dollar deposits, as shown in Figure 11. This hybrid designation screen 170 is provided with display sections 171 and 172 that display the transferable amount from yen deposits (e.g., 600,000 yen) and its US dollar equivalent (e.g., 4,000 dollars), and display sections 173 and 174 that display the transferable amount from US dollar deposits (e.g., 2,000 dollars) and its yen equivalent (e.g., 300,000 yen).

[0200] The user can look at these display areas 171-174 and input, for example, 300,000 yen into input area 175 for the transfer amount from the yen deposit (yen deposit / US dollar margin transfer amount input in yen), or input, for example, 2,000 dollars into input area 176 for the transfer amount from the yen deposit (yen deposit / US dollar margin transfer amount input in US dollars). The user can also input, for example, 1,000 dollars into input area 177 for the transfer amount from the US dollar deposit (US dollar deposit / US dollar margin transfer amount input in US dollars), or input, for example, 150,000 yen into input area 178 for the transfer amount from the US dollar deposit (US dollar deposit / US dollar margin transfer amount input in yen). Then, when the user presses the "Execute" button 179, the US dollar margin transfer means 27 executes the hybrid US dollar margin transfer process described below using the yen deposit / US dollar margin transfer amount and US dollar deposit / US dollar margin transfer amount entered and specified by the user.

[0201] 11 also has a display section 191 for the total transferable amount from yen deposits and US dollar deposits (e.g., 900,000 yen = 6,000 dollars). Looking at this display section 191, the user can input, for example, 450,000 yen into an input section 192 for the total transfer amount from yen deposits and US dollar deposits (the total amount of the yen deposit-US dollar margin transfer amount and the US dollar deposit-US dollar margin transfer amount entered in yen), or can input, for example, 3,000 dollars into an input section 193 for the total transfer amount from yen deposits and US dollar deposits (the total amount of the yen deposit-US dollar margin transfer amount and the US dollar deposit-US dollar margin transfer amount entered in US dollars). Then, the US dollar security deposit transfer means 27 executes the processes (A) to (E) to divide the total amount inputted to the input unit 192 or the input unit 193 (for example, 450,000 yen or 3,000 dollars).

[0202] The selection section 194 for processing (A) displays the calculation result when the total amount (for example, 450,000 yen or 3,000 dollars) is apportioned based on the ratio between the current yen deposit balance stored in yen deposit storage means 53 and the current US dollar deposit balance stored in US dollar deposit storage means 52. For example, 300,000 yen = 2,000 dollars is displayed as the transfer amount from the yen deposit (i.e., the yen deposit-US dollar margin transfer amount), and 150,000 yen = 1,000 dollars is displayed as the transfer amount from the US dollar deposit (i.e., the US dollar deposit-US dollar margin transfer amount). In other words, if the ratio of the current yen deposit balance to the current US dollar deposit balance is 600,000 yen:300,000 yen = 4,000 dollars:2,000 dollars = 2:1, as shown in each of the display sections 171-174 described above, the US dollar margin transfer means 27 apportions the input total amount (e.g., 450,000 yen or 3,000 dollars) in this ratio. Therefore, the yen deposit-US dollar margin transfer amount is 450,000 yen x (2 / 3) = 300,000 yen, or 3,000 dollars x (2 / 3) = 2,000 dollars. On the other hand, the US dollar deposit-US dollar margin transfer amount is 450,000 yen x (1 / 3) = 150,000 yen, or 3,000 dollars x (1 / 3) = 1,000 dollars.

[0203] The selection unit 195 for processing (B) displays the calculation result when the total amount (e.g., 450,000 yen or 3,000 dollars) is apportioned based on the ratio (the current exchange rate may be used for converting yen to US dollars) between the highest yen deposit balance during a predetermined period from the past to the present (e.g., the past year) stored in the yen deposit storage means 53 and the highest US dollar deposit balance during that period (e.g., the past year) stored in the US dollar deposit storage means 52. For example, 285,000 yen = 1,900 dollars is displayed as the transfer amount from the yen deposit (i.e., the yen deposit-US dollar margin transfer amount), and 165,000 yen = 1,100 dollars is displayed as the transfer amount from the US dollar deposit (i.e., the US dollar deposit-US dollar margin transfer amount). In other words, if the ratio of the highest yen deposit balance over the past year to the highest US dollar deposit balance over the past year is, for example, 855,000 yen:495,000 yen = 5,700 dollars:3,300 dollars = 57:33, US dollar margin transfer means 27 will apportion the input total amount (for example, 450,000 yen or 3,000 dollars) in this ratio. Therefore, the yen deposit / US dollar margin transfer amount will be 450,000 yen x (57 / 90) = 285,000 yen, or 3,000 dollars x (57 / 90) = 1,900 dollars. On the other hand, the US dollar deposit and US dollar margin transfer amount is 450,000 yen x (33 / 90) = 165,000 yen, or 3,000 dollars x (33 / 90) = 1,100 dollars.

[0204] The selection section 196 for the process (C) displays the calculation result when the total amount (e.g., 450,000 yen or 3,000 dollars) is apportioned based on the ratio (the current exchange rate may be used for converting yen to US dollars) between the average of the maximum and minimum yen deposit balances for a predetermined period from the past to the present (e.g., the past year) stored in the yen deposit storage means 53 and the average of the maximum and minimum US dollar deposit balances for that period (e.g., the past year) stored in the US dollar deposit storage means 52. For example, 270,000 yen = 1,800 dollars is displayed as the transfer amount from the yen deposit (i.e., the yen deposit-US dollar margin transfer amount), and 180,000 yen = 1,200 dollars is displayed as the transfer amount from the US dollar deposit (i.e., the US dollar deposit-US dollar margin transfer amount). For example, if the ratio of the average of the highest and lowest yen deposit balances over the past year to the average of the highest and lowest U.S. dollar deposit balances over the past year is 630,000 yen:420,000 yen = 4,200 dollars:2,800 dollars = 3:2, U.S. dollar margin transfer means 27 will apportion the total amount entered (e.g., 450,000 yen or 3,000 dollars) in this ratio. Therefore, the yen deposit / U.S. dollar margin transfer amount will be 450,000 yen x (3 / 5) = 270,000 yen, or 3,000 dollars x (3 / 5) = 1,800 dollars. On the other hand, the US dollar deposit and US dollar margin transfer amount is 450,000 yen x (2 / 5) = 180,000 yen, or 3,000 dollars x (2 / 5) = 1,200 dollars.

[0205] The selection section 197 for the process (D) displays the calculation result when dividing the total amount (for example, 450,000 yen or 3,000 dollars) by using as much of the yen deposit balance stored in the yen deposit storage means 53 as possible. For example, 450,000 yen = 3,000 dollars is displayed as the transfer amount from the yen deposit (i.e., the yen deposit-US dollar margin transfer amount), and 0 yen = 0 dollars is displayed as the transfer amount from the US dollar deposit (i.e., the US dollar deposit-US dollar margin transfer amount). In other words, in this calculation result, the entire total amount is the yen deposit-US dollar margin transfer amount.

[0206] The selection unit 198 for the process (E) displays the calculation result in which, when dividing the total amount (for example, 450,000 yen or 3,000 dollars), as much of the US dollar deposit balance stored in the US dollar deposit storage means 52 as possible is used. For example, 150,000 yen = 1,000 dollars is displayed as the transfer amount from the yen deposit (i.e., the yen deposit-US dollar margin transfer amount), and 300,000 yen = 2,000 dollars is displayed as the transfer amount from the US dollar deposit (i.e., the US dollar deposit-US dollar margin transfer amount). In other words, in this calculation result, the US dollar deposit balance (2,000 dollars = 300,000 yen) stored in the US dollar deposit storage means 52 is not enough to secure the total amount, so the yen deposit balance stored in the yen deposit storage means 53 is used to make up the shortfall in the US dollar deposit balance.

[0207] Note that if the allocation of (B) and (C) is not valid due to a shortage in either the yen deposit or the US dollar deposit, the amount of the shortage will be used in its entirety. For example, suppose the current yen deposit balance is 450,000 yen, the current US dollar deposit balance is 100 dollars (= 15,000 yen), and the allocation ratio of (B) and (C) is 9:1. In this case, if the total amount entered by the user is 300,000 yen, the yen deposit balance currently is 450,000 yen, so 300,000 yen x (9 / 10) = 270,000 yen can be secured, but the US dollar deposit balance currently is only 100 dollars (= 15,000 yen), so 300,000 yen x (1 / 10) = 30,000 yen cannot be secured. In such a case, the entire shortfall (i.e., the US dollar deposit balance), which is $100 (= 15,000 yen), will be used for the transfer, and the remaining amount of the total amount of 300,000 yen, which is 285,000 yen (= 300,000 yen - 15,000 yen), will be transferred from the yen deposit balance.

[0208] Then, when the user looks at the calculation results of processes (A) to (E), selects one of the selection sections 194 to 198, and presses the "Execute" button 199 in that state, the US dollar margin transfer means 27 executes the following hybrid US dollar margin transfer process using the yen deposit-US dollar margin transfer amount and the US dollar deposit-US dollar margin transfer amount calculated by the process selected by the user from processes (A) to (E). Here, for example, it is assumed that process (A) is selected, as shown in Figure 11.

[0209] (First stage of hybrid US dollar margin transfer processing) That is, the US dollar security deposit transfer means 27 transfers the yen deposit-US dollar security deposit transfer amount calculated in yen (e.g., 300,000 yen) or the yen deposit-US dollar security deposit transfer amount calculated in US dollars (e.g., 2,000 dollars) converted into yen at an exchange rate using the yen deposit-US dollar security deposit transfer amount and the US dollar deposit-US dollar security deposit transfer amount calculated using the division method (one of the processes (A) to (E)) selected by the user (customer or their input agent), or the yen deposit-US dollar security deposit transfer amount (e.g., 300,000 yen) calculated in US dollars (e.g., 2,000 dollars). The yen deposit amount calculated in yen (e.g., 300,000 yen) is converted into a US dollar amount at the exchange rate to obtain the yen deposit-US dollar margin transfer amount (e.g., 2,000 dollars), or the yen deposit-US dollar margin transfer amount calculated in US dollars (e.g., 2,000 dollars) is added to the US dollar deposit amount stored in US dollar deposit storage means 52 in association with the customer identification information of the customer who performed the input operation.

[0210] (Later-stage transfer processing in hybrid US dollar margin transfer processing) Furthermore, the US dollar deposit transfer means 27 adds the US dollar deposit / US dollar deposit transfer amount calculated in US dollars (e.g., 1,000 US dollars) to the yen deposit / US dollar deposit transfer amount (e.g., 2,000 US dollars) added to the amount of the US dollar deposit stored in the US dollar deposit storage means 52, or adds the US dollar deposit / US dollar deposit transfer amount calculated in yen (e.g., 150,000 yen) converted to a US dollar amount at an exchange rate (e.g., 1,000 US dollars) to the yen deposit / US dollar deposit transfer amount (e.g., 2,000 US dollars) added to the amount of the US dollar deposit stored in the US dollar deposit storage means 52. The total amount of the yen deposit / US dollar margin transfer amount and the US dollar deposit / US dollar margin transfer amount (3,000 dollars = 2,000 dollars + 1,000 dollars) is calculated, and the calculated total amount (3,000 dollars) is subtracted from the amount of the US dollar deposit stored in US dollar deposit storage means 52, and an amount equal to the subtracted total amount (3,000 dollars) is added to the amount of the US dollar margin stored in US dollar margin storage means 45 in association with the customer identification information for the customer who performed the input operation.

[0211] In addition, in the above embodiment, the explanation was given for a situation in which a new US stock margin trading system 10 was established in addition to an existing foreign securities trading system 60, but the foreign securities trading system 60 and the US stock margin trading system 10 may be established simultaneously, or the US stock margin trading system 10 may be established first. [Industrial Applicability]

[0212] As described above, the US stock margin trading system and program of the present invention are suitable for use, for example, in cases where a system is constructed by utilizing some of the functions of an existing foreign securities trading system and linking it with newly established US stock margin trading functions. [Explanation of symbols]

[0213] 10 US Stock Margin Trading System 23 US stock margin trading instruments 24 US stock margin repayment trading instruments 25 US stock margin contract processing method 26 US Equity Margin Position Management Tools 27 USD Margin Transfer Instrument 29 US Stock Margin Trading Inquiry Method 31 U.S. Stock Substitute Securities Transfer Instrument 32. US stock sales proceeds transfer instrument 33 Billing calculation processing means 34 Automatic margin call transfer instrument 40 US stock margin trading account information storage means 41 Stock price information storage means 42 US stock margin order data storage means 43 US stock margin contract data storage means 44 US Stock Margin Position Storage $45 Deposit Storage 46 Exchange information storage means 47 U.S. Equity Substitute Securities Storage Instrument 48 US stock margin trading stock information storage means 51 US Stock Balance Storage Instrument 52 US Dollar Deposit Storage Means 53 Yen Deposit Storage Means 80 Agent System 90 User terminals

Claims

1. A US stock margin trading system configured by a computer that executes processing for margin trading of US stocks within a trading limit determined according to the amount of US dollar margin that a customer has provided to a securities company as collateral, a yen deposit storage means for storing the amount of yen deposit in a foreign securities account opened for spot trading of foreign securities in association with customer identification information; a US dollar deposit storage means for storing the amount of US dollar deposit in the foreign securities account in association with customer identification information; a US dollar margin storage means for storing the amount of US dollar margin for a US stock margin trading account opened for margin trading of US stocks in association with customer identification information; A transfer amount specified in yen or US dollars is accepted via a network from a user terminal operated by the customer or their input agent as input operation information by the customer or their input agent for increasing the amount of the US dollar guarantee stored in the US dollar guarantee storage means, and the transfer amount specified in yen or the transfer amount specified in US dollars is converted into a yen amount at an exchange rate stored in an exchange rate information storage means, and the transfer amount is associated with customer identification information for the customer who made the transfer and subtracted from the amount of the yen deposit stored in the yen deposit storage means, and the transfer amount specified in yen is converted into a yen amount at an exchange rate stored in an exchange rate information storage means. a US dollar security deposit transfer means for executing a yen deposit / US dollar security deposit transfer process, which adds a transfer amount converted into US dollar amount at the exchange rate or the transfer amount specified in US dollars to the US dollar deposit amount stored in the US dollar deposit storage means in association with the customer identification information of the customer who performed the input operation, and further subtracts an amount equal to the added amount from the US dollar deposit amount stored in the US dollar deposit storage means, and adds an amount equal to the US dollar amount subtracted from the US dollar deposit to the US dollar security deposit amount stored in the US dollar security deposit storage means in association with the customer identification information of the customer who performed the input operation; A US stock margin trading system comprising:

2. a U.S. stock balance storage means for storing stock identification information and holding quantities of U.S. stocks held by the customer in the foreign securities account in association with customer identification information; a U.S. stock substitute securities storage means for storing issue identification information and deposited quantities of U.S. stock substitute securities in the U.S. stock margin trading account that are deposited by the customer as collateral for U.S. stock margin trading other than the U.S. dollar margin deposit in the U.S. stock margin trading account; a U.S. stock substitute securities book-entry transfer means for maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means and the customer's deposit quantity stored in the U.S. stock substitute securities storage means match, for the substitute securities issue, all of the holding quantities of the substitute securities issue, excluding non-substitutable issues that are predetermined as issues that cannot be deposited as U.S. stock substitute securities, among the issues held by the customer and stored in the U.S. stock balance storage means, as the deposit quantity for the substitute securities issue; 2. The US stock margin trading system according to claim 1, further comprising:

3. The U.S. stock substitute securities book-entry transfer vehicle is: When a customer purchases U.S. stocks in spot trading and the holding quantity of the issue related to the purchase stored in the U.S. stock balance storage means in association with the customer identification information of the customer who made the purchase increases by the purchase quantity, a process of adding the purchase quantity to the deposit quantity of the issue related to the purchase stored in the U.S. stock substitute securities storage means in association with the customer identification information of the customer who made the purchase is automatically executed by a process of maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means and the customer's deposit quantity stored in the U.S. stock substitute securities storage means match for the substitute securities issue.

3. The US stock margin trading system according to claim 2.

4. The U.S. stock substitute securities book-entry transfer vehicle is: When a customer sells the substitute securities issue in a spot transaction of U.S. stocks and the holding quantity of the issue related to the sale that is stored in the U.S. stock balance storage means in association with the customer identification information of the selling customer is reduced by the sold quantity, a process of reducing the deposit quantity of the issue related to the sale that is stored in the U.S. stock substitute securities storage means in association with the customer identification information of the selling customer is automatically executed by a process of maintaining a state in which the customer's holding quantity stored in the U.S. stock balance storage means and the customer's deposit quantity stored in the U.S. stock substitute securities storage means match for the substitute securities issue, and a US stock sales proceeds transfer means that automatically executes the following process after the US stock substitute securities transfer means processes the sale of the substitute securities by adding the US dollar sales proceeds obtained from the sale to the US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information of the customer who performed the sale, and further subtracting an amount equal to the sales proceeds from the US dollar deposit stored in the US dollar deposit storage means, and adding an amount equal to the sales proceeds to the amount of the US dollar margin stored in the US dollar margin storage means in association with the customer identification information of the customer who performed the sale.

4. The US stock margin trading system according to claim 3.

5. US stock margin order data storage means for storing order data of US stock margin transactions in which a customer has made a purchase or sale, in association with customer identification information; a US stock margin new order trading means for receiving order data including stock identification information, quantity, order price, and buy / sell classification from the user terminal via a network as input operation information for a new buy transaction or a new short transaction of a US stock margin transaction, storing the received order data in the US stock margin order data storage means in association with customer identification information and order identification information for the customer who placed the order, and creating order data including order identification information, stock identification information, quantity, order price, and buy / sell classification using the order data, and transmitting the created order data to a US brokerage system via a network; a US stock margin contract processing means for receiving contract data including order identification information, stock identification information, contract volume, contract unit price, and trade classification transmitted from the brokerage system via a network, and for storing the received contract data in a US stock margin contract data storage means in association with customer identification information; a US stock margin position management means for storing, in a US stock margin position storage means, the stock identification information, contract volume, contract unit price, and buy / sell classification included in the contract data when the order identification information of the contract data received from the brokerage system is order identification information of a new buy transaction or a new sell transaction stored in the US stock margin order data storage means, in association with customer identification information as a US stock margin trade position; 3. The US stock margin trading system according to claim 2, further comprising:

6. a US stock margin repayment trading means for receiving, from the user terminal via a network, the designation of the position to be subjected to a repayment transaction as input operation information for a repayment transaction by a counter sale for the position stored in the US stock margin position storage means, and using the designated position, creating repayment order data including the same brand identification information as the brand identification information of the position, a quantity the same as the contract quantity of the position or a partial quantity in the case of a partial repayment, a buy / sell classification opposite to the buy / sell classification of the position, a repayment order price, and order identification information for the repayment transaction, and transmitting the created repayment order data to the brokerage system via a network; The US stock margin contract processing means The system is configured to receive contract data for the repayment transaction, including order identification information for the repayment transaction, from the intermediary system via a network; The US stock margin position management means When the contract data of the repayment transaction is received from the brokerage system, the system is configured to also execute a process of storing the repayment contract amount, the repayment contract unit price, and the settlement profit and loss calculated from the contract unit price of the open position, the repayment contract amount, and the repayment contract unit price in the US stock margin position storage means as information that the repayment transaction for the open position has been completed.

6. The US stock margin trading system according to claim 5.

7. The contract amount calculated from the contract quantity and contract unit price for the unrepaid open position of each customer stored in the US stock margin position storage means, the settlement profit and loss in the event of repayment, and the valuation profit and loss of the unrepaid open position calculated using market price information for the open position stored in the stock price information storage means, the amount of the US dollar margin stored in the US dollar margin storage means in association with the customer identification information of each customer, and the deposit quantity and stock price information for the substitute securities stored in the US stock substitute securities storage means in association with the customer identification information of each customer. a claim calculation processing means for calculating a margin maintenance rate for each customer after the close of trading on each business day using the current price information of the substitute securities issue stored in the information storage means and the substitute securities collateral valuation amount calculated using a predetermined substitute multiplication factor, and, if it is determined that there is a customer whose calculated margin maintenance rate is lower than a predetermined minimum margin maintenance rate, calculating a US dollar margin call amount indicating the amount of additional US dollar margin required to restore the margin maintenance rate of said customer to the predetermined required margin maintenance rate; an automatic margin call transfer means for subtracting the US dollar margin call amount calculated by the claim calculation processing means from the amount of the US dollar deposit stored in the US dollar deposit storage means in association with the customer identification information of the customer, and for adding the US dollar margin call amount to the amount of the US dollar margin stored in the US dollar margin storage means in association with the customer identification information of the customer; 7. The US stock margin trading system according to claim 6, further comprising:

8. The US dollar margin transfer means is: In addition to the above-mentioned yen deposit and US dollar margin transfer process, a hybrid US dollar margin transfer process is executed to simultaneously transfer the yen deposit to the US dollar margin and the US dollar deposit to the US dollar margin, The hybrid US dollar margin transfer process is as input operation information by the customer or their input agent for increasing the amount of the US dollar guarantee stored in the US dollar guarantee storage means, the sum of the yen deposit / US dollar guarantee transfer amount for transfer from the yen deposit to the US dollar guarantee and the US dollar deposit / US dollar guarantee transfer amount for transfer from the US dollar deposit to the US dollar guarantee is received from the user terminal via the network as a total amount specified in yen or US dollars; When dividing the total amount received into the yen deposit / US dollar margin transfer amount and the US dollar deposit / US dollar margin transfer amount in yen or US dollar, (A) A process of unifying the current yen deposit amount stored in the yen deposit storage means or the amount converted into US dollars at the exchange rate of this amount and the current US dollar deposit amount stored in the US dollar deposit storage means or the amount converted into yen at the exchange rate of this amount into either yen or US dollars, and apportioning the total amount based on the ratio of these amounts; (B) A process of unifying the maximum amount of the yen deposit balance stored in the yen deposit storage means during a predetermined period from the past to the present, or the amount of this maximum amount converted into US dollars at the exchange rate, and the maximum amount of the US dollar deposit balance stored in the US dollar deposit storage means during that period, or the amount of this maximum amount converted into yen at the exchange rate, into either yen or US dollars, and apportioning the total amount based on the ratio of these amounts; (C) A process of unifying the average of the maximum and minimum amounts of the yen deposit balances stored in the yen deposit storage means during a predetermined period from the past to the present, or the US dollar equivalent of this average amount at the exchange rate, and the average of the maximum and minimum amounts of the US dollar deposit balances stored in the US dollar deposit storage means during that period, or the yen equivalent of this average amount at the exchange rate, into either yen or US dollars, and then apportioning the total amount based on the ratio of these amounts, By executing the process (A) and the process (B) and / or (C), options for dividing the total amount are provided to the customer or their agent on a screen display; Using the yen deposit / US dollar margin transfer amount and the US dollar deposit / US dollar margin transfer amount calculated using the division method selected by the customer or their agent, subtract the yen deposit / US dollar guarantee transfer amount calculated in yen, or the yen deposit / US dollar guarantee transfer amount calculated in US dollars converted into a yen amount at the exchange rate, from the yen deposit amount stored in the yen deposit storage means in association with the customer identification information of the customer who made the transfer, and add the yen deposit / US dollar guarantee transfer amount calculated in yen converted into a US dollar amount at the exchange rate, or the yen deposit / US dollar guarantee transfer amount calculated in US dollars, to the US dollar deposit amount stored in the US dollar deposit storage means in association with the customer identification information of the customer who performed the input operation; Furthermore, calculate the total amount of the yen deposit / US dollar security deposit transfer amount and the US dollar deposit / US dollar security deposit transfer amount by adding the US dollar deposit / US dollar security deposit transfer amount calculated in US dollars, or the US dollar deposit / US dollar security deposit transfer amount calculated in yen and converted into US dollars at the exchange rate, to the added yen deposit / US dollar security deposit transfer amount; The calculated total amount is subtracted from the amount of the US dollar deposit stored in the US dollar deposit storage means, and an amount equal to the subtracted total amount is added to the amount of the US dollar guarantee stored in the US dollar guarantee storage means in association with the customer identification information of the customer who performed the input operation.

5. The US stock margin trading system according to claim 4.

9. A program for causing a computer to function as the US stock margin trading system according to any one of claims 1 to 8.

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