JP2006011670A - Self wash sale prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for preventing the same customer from sending a sell order and a buy order to the same issue though the customer does not intend it. <P>SOLUTION: In this self wash sale prevention system, a central processor decides whether trade of securities performed from a computer of a client of the customer via the Internet corresponds to self-trade or not, by executing a program placed on a computer of a server of a stock brokerage firm, and a warning message for preventing fictitious trading by the self-trade is displayed on a screen of the client of the customer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a self-fake sale prevention system for preventing the same customer from purchasing a brand for which a sell order has been placed, or preventing the same customer from selling to a brand for which a buy order has been placed.

  With regard to buying and selling securities such as stocks, it has become possible to trade using the Internet, and since securities can be traded easily even from home, the use of individual investors is increasing.

  Normally, one account is opened for one customer, but there are cases where multiple accounts are held, and for the same brand, a sell order is placed in one account and a buy order is placed in the other account. There is also a risk that a fancy dress trade will be performed.

As in the invention described in Patent Document 1, an invention of a securities transaction monitoring system and method that can easily and quickly find illegal transactions such as fancy trades is also disclosed.
JP 2003-168005 A

  However, in transactions using the Internet, even if the customer has only one account, he / she purchases himself / herself in response to a sell order placed by the customer due to a mistake in operating the computer, or a purchase made by the customer. There is a possibility that you sell yourself for the order.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a system for preventing the same customer from placing a sell order and a buy order for the same brand regardless of the intention of the customer. .

  In order to solve the above problems, the present invention provides a customer registration processing unit 2a for registering personal information of the customer 4b in the database 3 of the customer information 3a and the account information 3b, contents inputted by the customer 4b, and the customer registration process. Authenticated by the customer authentication unit 2b that collates with the contents registered in the unit 2a, the brand update processing unit 2e that updates the database 3 of the brand information 3c to the latest content every certain period of time, and the customer authentication unit 2b A buy order processing unit 2c for registering a buy order of the securities 7 made by the customer 4b with reference to the contents of the database 3 of the brand information 3c and the account information 3b in the database 3 of the transaction information 3d; and the customer authentication unit 2b The customer 4b who has been authenticated in step 3b puts the selling order of the securities 7 made by referring to the contents of the database 3 of the brand information 3c and the holding information 3e into the database 3 of the transaction information 3d. Sell order processing unit 2d for recording, and contract processing unit for updating the transaction information 3d, account information 3b, and possession information 3e when a transaction is ordered by the buy order processing unit 2c and the sell order processing unit 2d 2f is a program 2 placed on the computer of the server 5 of the securities company 4a, and whether or not the trading of the securities 7 performed via the Internet 4 from the computer of the client 6 of the customer 4b is self-trading. The central processing unit 5a of the server 5 makes a judgment by executing the program 2, and displays a warning message 15 for preventing a fake transaction by self-trading on the screen of the client 6 of the customer 4b. The configuration of the masquerade trading prevention system 1 is adopted.

  Since this invention is the above structure, the following effects are acquired. First, when a customer makes a transaction that falls under self-sales, the system displays a warning message to prevent unauthorized transactions such as fancy trades from taking place. There is no need to drop it.

  Secondly, even if the customer makes a self-purchase due to a mistake in operation or carelessness of the customer, the system prompts attention by displaying a warning message, so that the customer can also trade with peace of mind.

  Thirdly, since the transaction details related to the sale and purchase of securities are accumulated in the database, it is possible to confirm whether or not self-purchase has been carried out by the securities company, and fraudulent transactions can be easily found.

  Disguise trading is a case where it is continuously performed with the purpose of causing misunderstandings to third parties, so after issuing a warning message, it is up to the customer to decide whether to continue the transaction, and there is a suspicion of fraudulent purposes. Take measures such as prohibiting transactions only in certain cases.

  Below, based on an accompanying drawing, the self-massage sale prevention system which is the present invention is explained in detail. FIG. 1 is a diagram showing the relationship between a program and a database of a self-fake trade prevention system according to the present invention.

  The self-disguise sale prevention system 1 registers the customer 4b personal information in the customer information 3a and account information 3b database 3 and the customer registration processing unit 2a and the contents inputted by the customer 4b and the customer registration processing unit 2a. The customer authentication unit 2b for collating the content, the brand update processing unit 2e for updating the database 3 of the brand information 3c to the latest content every certain period of time, and the customer 4b authenticated by the customer certification unit 2b Buy order processing unit 2c for registering a buy order of securities 7 made by referring to the contents of database 3 of information 3c and account information 3b in database 3 of transaction information 3d, and a customer authenticated by customer authentication unit 2b 4b registers the selling order of the securities 7 made by referring to the contents of the database 3 of the brand information 3c and the holding information 3e in the database 3 of the transaction information 3d. An order processing unit 2d, and a contract processing unit 2f that updates the transaction information 3d, the account information 3b, and the possession information 3e when the transaction ordered by the buy order processing unit 2c and the sell order processing unit 2d is concluded. The program 2 placed on the computer of the server 5 of the securities company 4a consisting of the server 4 indicates whether or not the trading of the securities 7 performed through the Internet 4 from the computer of the client 6 of the customer 4b is self-purchasing. 5 is executed by executing the program 2, and a warning message 15 is displayed on the screen of the client 6 of the customer 4b to prevent a fake transaction due to self-purchasing.

  Self-purchasing refers to transactions in which the same customer buys and sells the same brand, and fake dressing refers to fraudulent transactions that are continuously performed with the purpose of causing misunderstandings to third parties. Repeated self-trading results in suspicion of fancy dress sales.

  In the securities trading on the Internet, there are market orders that are traded at the market level at the time of trading and limit orders that are specified by specifying the bid price or the sell price. I don't know if it was done.

  The self-massage sale prevention system 1 performs a self-trading prevention process 12 for a meaningless action such as buying by itself for a selling order issued by the customer 4b or selling by itself for a buying order issued by the customer 4b. Incorporate and monitor.

  While the market price fluctuates, there are cases where the customer 4b becomes self-buying before the customer 4b notices, or the self-buying may occur due to a mistake in the operation of the computer. Is suppressed.

  The self-fake sale prevention system 1 includes a customer registration processing unit 2a, a customer authentication unit 2b, a buy order processing unit 2c, a sell order processing unit 2d, a brand update processing unit 2e, a contract processing unit 2f, a program 2, and customer information 3a. , There is a database 3 of account information 3b, brand information 3c, transaction information 3d, and possession information 3e.

  The customer 4b needs to register the customer information 3a in advance in order to use the self-fancy dress trade prevention system 1, and the customer information processing unit 2a registers the customer information 3a and the account information 3b.

  When the customer 4b uses the self-fake sale prevention system 1, it is necessary to receive authentication in the customer authentication unit 2b, and it is verified whether or not the input customer code and password match the contents registered in the customer information 3a.

  The authenticated customer can place a buy order or a sell order for the securities 7 by using the self-fake trade prevention system 1. Further, the stock information 3c of the securities 7 and the possession information 3e of the securities 7 held by the customer 4b can be referred to, and the account balance of the customer 4b can be confirmed by the account information 3b.

  When the customer 4b places a purchase order for the securities 7, the purchase order processing unit 2c performs processing, and registers it in the transaction information 3d as having been ordered. Note that the remaining amount is confirmed with the account information 3b, and if the amount is not enough, no order is placed.

  When the customer 4b places a sell order for the securities 7, the sell order processing unit 2d performs the process and registers it in the transaction information 3d as having been ordered. A selling order is made for the securities 7 of the customer 4b registered in the possession information 3e.

  In the buy order processing unit 2c and the sell order processing unit 2d, a self-purchase prevention process 12 is incorporated, and the already-ordered transaction is confirmed with the transaction information 3d. 15 is displayed.

  When the customer 4b places a buy order or a sell order, it is necessary that the brand information 3c is always the latest information, and the brand update processing unit 2e is executed at regular intervals to update the brand information 3c. .

  When an ordered transaction in the transaction information 3d is established, the contract processing unit 2f processes the transaction and registers it in the transaction information 3d as a contract. Based on the result of buying and selling the securities 7, the remaining information 3e and the account information 3b of the securities 7 of the customer 4b are updated.

  Each of the customer registration processing unit 2a, customer authentication unit 2b, buy order processing unit 2c, sell order processing unit 2d, brand update processing unit 2e, and contract processing unit 2f program 2 exists as a module.

  The module is a part obtained by dividing the program 2 by function. By configuring the program 2 in units of modules, development and testing are easy and maintenance is easy.

  The database 3 of customer information 3a, account information 3b, brand information 3c, transaction information 3d, and holding information 3e may have each table as one database 3 or may exist as separate databases 3.

  FIG. 2 is a diagram showing the configuration of the computer of the self-fake trade prevention system according to the present invention. In the self-fake sale prevention system 1, a server 5 provided in a securities company 4 a and a client 6 of a customer 4 b are connected via the Internet 4.

  The server 5 is a computer provided in the securities company 4a or a plurality of servers as necessary. Like a general computer, it has a central processing unit 5a, a main storage device 5b, an auxiliary storage device 5c, and the like.

  The client 6 is a computer that each customer 4b has. Similar to the server 5, the server 5 includes a central processing unit 5a, a main storage device 5b, an auxiliary storage device 5c, and the like. However, the server 5 mainly performs calculations and serves as an input device 6a and an output device 6b.

  The central processing unit 5a (CPU) is the center of the computer, and interprets instructions and controls execution. The main storage device 5b (memory) is an area for arranging data to be calculated by the computer and writing calculation results. The auxiliary storage device 5c (disk or the like) is a device that stores the program 2 (CGI or the like), the database 3, or the like.

  The input device 6a is a keyboard or a mouse of the client 6, and the output device 6b is a monitor or a printer of the client 6. Input from the client 6 to the server 5 and output from the server 5 to the client 6 are performed.

  When the client 6 accesses the server 5 in the server 5, the program 2 existing in the auxiliary storage device 5c is read into the main storage device 5b and executed and calculated by the central processing unit 5a.

  When it is necessary to refer to or update the database 3 when executing the processing, it is performed by giving an instruction to the database management system using an instruction (SQL or the like) for operating the database 3.

  When the processing is completed in the server 5, a screen (HTML or the like) is returned 9a to the client 6. When the process ends abnormally, an error screen is returned 9a to the client 6 and notified to the customer 4b.

  Note that the access 9 from the client 6 and the return 9a from the server 5 in FIG. 2 are in a one-to-one relationship, and the access 9 from one client 6 is returned 9a to all other clients 6. It doesn't mean.

  When the customer 4 b buys and sells the securities 7 from the client 6 via the Internet 4, transaction information 3 d is accumulated in the database 3 provided in the server 5. In accordance with the transaction of the customer 4b, the securities company 4a deposits the securities 7 as a protection deposit 7a and manages the account 8 8a.

  The custody deposit 7a means that, even if the customer 4b purchases the securities 7, the securities company 4a keeps the securities 7 instead of placing the securities 7 under the customer 4b itself. Loss due to accidents such as can be avoided.

  When the customer 4b trades the securities 7, it is necessary to provide an account 8 in the securities company 4a in advance. The opened account 8 is managed 8a by the securities company 4a and linked with the account information 3b of the database 3.

  FIG. 3 is a flow chart showing the flow of a buy order in the self-fancy dress trade prevention system according to the present invention. A flow in the case of monitoring the purchase order by incorporating the self-trading prevention process 12 into the purchase order processing unit 2c is shown.

  The buy order processing unit 2c starts from the step of buying brand selection 10 and after the steps of brand information acquisition 10a, buy order screen display 10b, quantity input reception 10c, button confirmation 10d, account information acquisition 10e, and remaining amount confirmation 10f. Then, the self-trading prevention processing 12 is performed, and the process ends at the step of receiving a purchase order 10g.

  In the buying brand selection 10 step, the brand selected by the customer 4b to place a buying order is acquired by a method such as selecting from a brand list or searching and selecting a brand name. Specifically, a brand code or the like is acquired.

  In the step of acquiring brand information 10a, the database 3 of the brand information 3c is searched using the brand code acquired in the step of buying brand selection 10 as a key, and information such as the current unit price of the target brand is obtained.

  In the step of buying order screen display 10b, a buying order screen 13 is created based on the brand information 3c acquired in the step of acquiring brand information 10a and displayed on the screen of the client 6. The buy order screen 13 is provided with a column for inputting a price 13e, a quantity 13f, etc., an order button 13h for starting processing, a cancel button 13i for stopping processing, and the like.

  In the quantity input receiving step 10c, the customer 4b inputs the price 13e, the quantity 13f, etc. on the buy order screen 13 displayed in the buy order screen display 10b step, and presses the order button 13h or the cancel button 13i. Wait until.

  The button confirmation 10d is a branching step. When the order button 13h is pressed in the step of receiving quantity input 10c, the process proceeds to the next account information acquisition 10e step, and when the cancel button 13i is pressed, the purchase order processing unit. The process 2c is terminated.

  In the account information acquisition 10e step, information such as the balance of the account 8 opened by the customer 4b is acquired. The database 3 of the customer information 3a has an account number area, and the database 3 of the account information 3b is searched using the account number as a key.

  The remaining amount confirmation 10f is a branching step. If there is an amount left to buy the securities 7 in the account 8, the next self-trading prevention process 12 is performed. If the remaining amount is not enough, the step of the purchase order screen display 10b. Return to, and request correction of input contents.

  Note that for transactions that have already been ordered, the value of securities 7 is not deducted from the balance of account 8 until the deal is completed, but in the step of confirming remaining amount 10f, the remaining amount is calculated after taking into account transactions that have not been executed. to decide.

  The self-trading prevention process 12 includes steps of transaction information acquisition 12a, trading order matching 12b, self-trading confirmation 12c, warning message display 12d, prevention function confirmation 12e, and order stop confirmation 12f.

  In the step of acquiring transaction information 12a, the transaction information 3d already performed by the customer 4b is acquired. All the transaction information 3d related to the customer 4b is extracted from the database 3 by using the customer code provided in the database 3 of the customer information 3a used for authentication for using the self-fake sale prevention system 1 as a key.

  In the step of buying and selling order collation 12b, the same information as the transaction that is about to place an order in the transaction information 3d acquired in the step of acquiring transaction information 12a and the opposite transaction (that is, in the case of a buy order, sell order, sell In the case of an order, a check is made to see if a buy order exists.

  The self-purchase confirmation 12c is a branching step. If the result of the collation in the buying and selling order collation 12b corresponds to the self-trading, the process proceeds to the next warning message display 12d step. After exiting the trade prevention process 12, an order is received as the next step of the main process.

  The case where it corresponds to the self-buying is a case where an attempt to place a buy order with the same price or more with respect to a sell order of the same brand existing in the transaction information 3d, or a purchase order of the same brand existing in the transaction information 3d. On the other hand, it is when trying to place a sell order below the same price.

  When buying and selling securities 7, it is common to buy at a low price and sell at a high price to make a profit, but trading that does not produce profit at the same price in a short period of time is economically reasonable Lack of sex and may cause misunderstandings to others.

  In the step of warning message display 12d, when it is determined that it corresponds to the self-buying in the step of self-buying confirmation 12c, a warning message 15 is displayed on the screen of the client 6 to call attention to the customer 4b. In response to the warning, the customer 4b can select whether to stop or continue the order, and waits until the button is pressed.

  The prevention function confirmation 12e is a branching step. When it is determined that the customer 4b repeats self-buying and trading for an illegal purpose such as fancy buying or selling, or when self-buying is set to be prohibited in advance. Stops the order and ends the process.

  The order stop confirmation 12f is a branching step. If it is agreed to stop the order in the warning message display 12d step, the process is terminated without accepting the order. If it is selected to continue the order, the self-trading prevention process 12 is exited, and the order reception which is the next step of the main process is performed.

  In the step of receiving a purchase order 10g, if a buy order can be made as a result of performing the self-trading prevention process 12, the purchase order is received, the already-recorded record is added to the database 3 of the transaction information 3d, and the buy order is received. The order processing unit 2c is completed.

  FIG. 4 is a flowchart showing the flow of a sell order in the self-fake sale prevention system according to the present invention. A flow in the case of monitoring the selling order by incorporating the self-trading prevention processing 12 into the selling order processing unit 2d is shown.

  The selling order processing unit 2d starts from the step of holding information acquisition 11 and after the steps of selling brand selection 11a, brand information acquisition 11b, selling order screen display 11c, quantity input reception 11d, button confirmation 11e and quantity confirmation 11f. Then, the self-trading prevention process 12 is performed, and the process ends at the step of selling order reception 11g.

  In the possession information acquisition 11 step, information on the securities 7 held by the customer 4b is obtained. All the possession information 3e of the customer 4b is extracted using the customer code as a key, and it is grasped how much the brand 4b possesses.

  In the selling brand selection 11a step, a list of the securities 7 of the customer 4b acquired in the holding information acquisition step 11 is displayed, for example, the brand for placing a selling order is selected and the brand code is acquired. deep.

  In the step of acquiring brand information 11b, the database 3 of the brand information 3c is searched using the brand code acquired in the selling brand selection 11a step as a key, and information such as the current unit price of the target brand is obtained.

  In the step of selling order screen display 11c, the selling order screen 14 is created based on the brand information 3c acquired in the step of acquiring brand information 11b and displayed on the screen of the client 6. The sell order screen 14 is provided with a column for inputting a price 14e, a quantity 14f, etc., an order button 14h for starting processing, a cancel button 14i for stopping processing, and the like.

  At the step of receiving the quantity etc. input 11d, the customer 4b inputs the price 14e, the quantity 14f, etc. on the sell order screen 14 displayed at the step of the sell order screen display 11c, and presses the order button 14h or the cancel button 14i. Wait until.

  The button confirmation 11e is a branching step. When the order button 14h is pushed in the step of receiving the quantity etc. input 11d, the process proceeds to the next quantity confirmation 11f step, and when the cancel button 14i is pushed, the selling order processing unit 2d. Terminate the process.

  The quantity confirmation 11f is a branching step. If the quantity sold of the securities 7 is within the possession quantity of the possession information 3e, the next self-trading prevention process 12 is performed, and if it is attempted to sell more than the possession quantity, Returning to the step of the sell order screen display 11c, the correction of the input content is requested.

  The self-trading prevention process 12 is the same as that of the buy order processing unit 2c in FIG. A buy order of the same brand is extracted from the transaction information 3d, and it is determined whether or not the transaction for which a sell order is to be placed corresponds to self-buying.

  In the step of selling order reception 11g, if the selling order can be performed as a result of the self-trading prevention processing 12, the selling order is received, the already-recorded record is added to the database 3 of the transaction information 3d, and the selling order is received. The order processing unit 2d is completed.

  FIG. 5 is a diagram showing a screen displayed at the time of a purchase order in the self-massage sale prevention system according to the present invention. The content displayed on the screen of the client 6 in the step of the purchase order screen display 10b of FIG. 3 is shown.

  The buy order screen 13 displays the brand name 13a and the unit price 13b of the brand to be ordered, and an area for selecting whether to place the order at the market 13c or the limit 13d, and the price 13e and quantity 13f to order. Is provided.

  When placing an order at the market 13c, the price 13e is set to the unit price 13b of the brand, that is, the market price level at that time, and is locked so that it cannot be changed. When placing an order at the limit price 13d, the customer 4b can freely change the price 13e.

  If the price 13e and the quantity 13f are input, the total amount 13g may be displayed. When the buy order is executed, the amount 13g is withdrawn from the account 8 of the customer 4b. However, when ordering at the bank 13c, the unit price may fluctuate at the time of execution.

  After inputting the price 13e and the quantity 13f, an order button 13h for executing a buy order and a cancel button 13i for canceling the buy order are also provided. By pressing the order button 13h or the cancel button 13i, the buy order screen 13 is closed and the process is executed.

  FIG. 6 is a diagram showing a screen that is displayed at the time of selling order of the self-fake sale prevention system according to the present invention. The contents displayed on the screen of the client 6 in the step of the sell order screen display 11c of FIG. 4 are shown.

  The sell order screen 14 displays the brand name 14a and the unit price 14b of the brand to be ordered, and an area for selecting whether to place the order at the market 14c or the limit 14d, and the price 14e and quantity 14f to order. Is provided.

  When placing an order at the market 14c, the price 14e is set to the unit price 14b of the brand, that is, the market price level at that time, and is locked so that it cannot be changed. When placing an order at the limit price 14d, the customer 4b can freely change the price 14e.

  If the price 14e and the quantity 14f are input, the total amount 14g may be displayed. When the sell order is executed, the amount 14g enters the account 8 of the customer 4b. However, when ordering at the bank 14c, the unit price may fluctuate at the time of execution.

  After inputting the price 14e and the quantity 14f, an order button 14h for executing a sell order and a cancel button 14i for canceling the sell order are also provided. By pressing the order button 14h or the cancel button 14i, the sell order screen 14 is closed and the process is executed.

  FIG. 7 is a diagram showing a case in which a warning message of the self-fancy dress trade prevention system according to the present invention is displayed. When it is determined in the self-trading prevention process 12 shown in FIG. 3 or 4 that it corresponds to self-trading, a warning message display 12d is displayed on the screen of the client 6.

  The warning message 15 prompts attention that the transaction is self-buying, displays a sentence confirming whether or not to stop the order, and is provided with a Yes button 15a for stopping the order and a No button 15b for continuing the order.

  If the YES button 15a is pressed, the warning message 15 is closed and the order is canceled. When the No button 15b is pressed, the warning message 15 is closed and the order is continued, but the warning message 16 may be displayed for confirmation.

  When the warning message 16 is displayed, a text indicating that the order is continued is displayed. When the confirmation is completed, the OK message 16 is pressed to close the warning message 16 and execute the order receiving process.

  The self-fighting and selling prevention system 1 can warn of self-buying and prevent self-buying from being mistakenly performed. However, since all self-trading is not necessarily fraudulent transactions such as fancy dress sales, there is room for transactions without completely prohibiting them.

  If self-trading is done, leave a record in the database 3 of the transaction information 3d, and if self-trading is repeated, take measures such as prohibiting self-trading or stopping the transaction. .

  FIG. 8 is a diagram showing the structure of the database of the self-fancy dress trade prevention system according to the present invention. A case where the database 3 includes a table of customer information 3a, a table of account information 3b, a table of brand information 3c, a table of transaction information 3d, and a table of holding information 3e is shown.

  The database 3 is a relational database and can be expressed in a tabular format consisting of rows and columns. Each table in the database 3 can be associated, and data in another table can be searched and extracted from data in one table.

  The table of customer information 3a is a set of records including fields such as customer code, name, contact information, account number, and password. The customer code is used as a primary key, the transaction information 3d and the holding information 3e are associated with the table, and the account number is associated with the account information 3b table.

  In the customer registration processing unit 2a in FIG. 1, one record is created for the customer 4b. A password for authentication by the customer authentication unit 2b is set, and the name, address, telephone number, or mail address of the customer 4b is registered.

  Note that a record is one data item constituting a file in the database 3, and a field is an individual area constituting a record. The database 3 can be represented in a two-dimensional table format by records and fields.

  The table of account information 3b is a set of records composed of fields such as account number, name holder, and remaining amount. The account number is used as the primary key and is associated with the customer information 3a. 1 is created together with the customer information 3a in the customer registration processing unit 2a of FIG. 1, and is referred to when the remaining amount is confirmed. Further, when the transaction of the securities 7 is executed, the remaining amount fluctuates.

  The table of the brand information 3c is a set of records including fields such as brand code, brand name, unit price, and the like. The brand code is used as a primary key, and is associated with a table of transaction information 3d and possession information 3e.

  In the brand update processing unit 2e in FIG. 1, the unit price is updated to the latest information every fixed period of time, and the transaction price is determined when the securities 7 are ordered in the buy order processing unit 2c or the sell order processing unit 2d. It is referred to as a guide.

  The table of transaction information 3d is a set of records including fields such as number, date, time, customer code, transaction type, brand code, unit price, order type, transaction price, quantity, amount, transaction status, and self-sales. is there. Using the number as a main key, the customer code is associated with the customer information 3a and holding information 3e tables, and the brand code is associated with the brand information 3c and holding information 3e tables.

  The number field is an area for storing data that is incremented by 1 each time a record is added, and is managed by the database management system. The securities company 4a and the customer 4b can be registered without particularly considering the number.

  In the buy order processing unit 2c or the sell order processing unit 2d in FIG. 1, a record whose transaction status data is an order is created. In addition, the contract processing unit 2f creates a record whose transaction status data is a contract for a record whose transaction status data is an order.

  In the record created by the buy order processing unit 2c, the transaction type data is buy, and in the record created by the sell order processing unit 2d, the transaction type data is sell. The date and time when the order was placed is registered in the date and time fields.

  In the buy order screen 13 of FIG. 5 or the sell order screen of FIG. 6, when the order is marketed, the order type data is marketed, and when the order is the limit, the order type data is the limit. The transaction price and quantity at the time of ordering are also registered in the transaction information 3d.

  Each field such as transaction type, order type, transaction status, and self-purchasing may be registered as a code, or the code may be registered as a code table. For example, the transaction type data is registered as buy 1 and sell 2.

  If the buy or sell order for securities 7 is canceled before it is closed, the transaction status may be deleted, or the transaction status may be canceled while the transaction status remains the order record. You may take the method of creating this record.

  A flag indicating whether or not self-trading has been performed is entered in the self-trading field. In the table of the transaction information 3d in FIG. 8, the record of the sell order with the number 4 is the purchase and sale of the same customer and the same brand with respect to the record of the purchase order with the number 1, and corresponds to the self-buy. Similarly, the record of the buy order with the number 9 corresponds to the self-trading similarly to the record of the sell order with the number 7.

  The table of possession information 3e is a set of records composed of customer code, brand code, and possession quantity fields. The customer code and the brand code are associated with the primary key, the customer code is associated with the customer information 3a and transaction information 3d tables, and the brand code is associated with the brand information 3c and transaction information 3d tables.

  In the contract processing unit 2f in FIG. 1, when a buy order or a sell order is executed, the number of brands of the securities 7 held by the customer 4b changes. The selling order processing unit 2d refers to the possession information 3e when selecting a selling brand.

  FIG. 9 is a table showing the quantity sold and the quantity bought in accordance with the transition of the price of the self-massage sale prevention system according to the present invention. The transaction status 17 shows the selling quantity 18a and the buying quantity 18b when the price 18 of a certain brand fluctuates from 602 yen to 632 yen.

  The table in FIG. 9 shows that the switching line 19 is drawn between 619 yen and 627 yen, indicating that a purchase order was made at a price 18 lower than 627 yen and switched to a sell order when the price exceeded 627 yen.

  When a buy order and a sell order are made only by market orders, the sale is performed at the price 18 at the time of the transaction. Even in the case of limit orders only, if you pay attention to the amount specified, it is unlikely that you will be buying and selling.

  However, if the buy order is a market order and the sell order is a limit order, even if the price 18 is 627 yen and the sell order is executed, the buy order is made without noticing, There is a possibility.

  Also, when price 18 fluctuates from 632 yen to 602 yen, sell order is a market order, and buy order is the same as a limit order. Price 18 drops to 619 yen and the buy order is executed There is a possibility of placing a sell order against.

  For example, if the price 18 reaches 619 yen in advance, I placed a limit order to buy 900 shares, and when the price 18 was 627 yen, I tried to make a market order to sell 800 shares, but the price 18 was 619 yen If it has changed, after buying 900 shares at 619 yen, 800 shares will be sold, and 800 shares will be self-purchased.

  Even if you do not trade on the same day, if a sell order and a buy order are made while maintaining the same price 18, it will be self-buying, so even if you are doing only with a market order, it may fall under self-buying There is.

  Since the transaction is via the Internet 4, it is important for a person unfamiliar with the computer to display and confirm the warning message 15 without immediately executing the operation even if the operation is wrong. The same applies to a case where a person with insufficient knowledge of the stock goes without knowing that it is illegal.

  As described above, in the self-massage sale prevention system 1 according to the present invention, when the customer 4b conducts a transaction corresponding to self-sale, the system displays the warning message 15 so that the fraudulent trade such as a fancy dress trade. You can prevent trades from taking place, and you don't lose market confidence.

  Further, even if the customer 4b makes a self-purchase due to an operation error or carelessness, the system prompts attention by displaying the warning message 15, so that the customer 4b can also trade with peace of mind.

  Furthermore, since the transaction content related to the sale and purchase of securities is accumulated in the database 3, it is possible to confirm whether or not the securities company 4a has made a self-purchase, and an unauthorized transaction can be easily found.

  It is conceivable to incorporate a control for displaying a warning message to a customer even for an illegal transaction other than a fake sale. Since the transaction is automatically processed by the computer, it is possible to monitor the customer's careless or intentional operation that leads to an unauthorized transaction.

It is a figure which shows the relationship between the program and database of the self-fancy dress trade prevention system which is this invention. It is a figure which shows the structure of the computer of the self masquerade transaction prevention system which is this invention. It is a flowchart which shows the flow of the purchase order of the self-massage sale prevention system which is this invention. It is a flowchart which shows the flow of the selling order of the self-fancy dress sales prevention system which is this invention. It is a figure which shows the screen displayed at the time of the purchase order of the self-fancy dress sales prevention system which is this invention. It is a figure which shows the screen displayed at the time of the sell order of the self-fancy dress sales prevention system which is this invention. It is a figure which shows the case where the warning message of the self masquerade trading prevention system which is this invention is displayed. It is a figure which shows the structure of the database of the self-fancy dress trade prevention system which is this invention. It is a table | surface which shows the selling quantity and the buying quantity accompanying the transition of the price of the self-massaging sale prevention system which is this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Self-massage sale prevention system 2 Program 2a Customer registration process part 2b Customer authentication part 2c Purchase order process part 2d Sell order process part 2e Brand update process part 2f Contract process part 3 Database 3a Customer information 3b Account information 3c Brand information 3d Transaction information 3e Holding information 4 Internet 4a Securities company 4b Customer 5 Server 5a Central processing unit 5b Main storage unit 5c Auxiliary storage unit 6 Client 6a Input unit 6b Output unit 7 Securities 7a Protected deposit 8 Account 8a Management 9 Access 9a Return 10 Purchased item selection 10a Stock information acquisition 10b Purchase order screen display 10c Quantity input reception 10d Button confirmation 10e Account information acquisition 10f Remaining amount confirmation 10g Buy order reception 11 Holding information acquisition 11a Sale brand selection 11b Brand information acquisition 11c Sell order screen table 11d Input of quantity, etc. 11e Button confirmation 11f Quantity confirmation 11g Sell order acceptance 12 Self-trading prevention processing 12a Transaction information acquisition 12b Trading order verification 12c Self-trading confirmation 12d Warning message display 12e Prevention function confirmation 12f Order stop confirmation 13 Buy order screen 13a Brand Name 13b Unit Price 13c Market Price 13d Price 13e Price 13f Quantity 13g Amount 13h Order Button 13i Cancel Button 14 Sell Order Screen 14a Brand Name 14b Unit Price 14c Market Price 14d Price 14e Price 14f Quantity 14g Price 14h Alert Button 14h Alert Button 14 15b No button 16 Warning message 16a OK button 17 Transaction status 18 Price 18a Sales volume 18b Purchase volume 19 Switching line

Claims (3)

  A customer registration processing unit for registering customer personal information in a database of customer information and account information, a customer authentication unit for collating the content entered by the customer with the content registered by the customer registration processing unit, and for every elapse of a certain period of time Trading the stock update processing section that updates the stock information database to the latest content, and the purchase order of securities made by the customer authenticated by the customer authentication section with reference to the content of the stock information and account information database The buy order processing unit registered in the information database, and the sale order of the securities made by the customer authenticated by the customer authentication unit with reference to the contents of the stock information and holding information database are registered in the transaction information database The transaction information, the account information and the possession information when the transaction ordered by the buy order processing unit and the buy order processing unit and the sell order processing unit is concluded. It is a program placed on the server computer of a securities company consisting of a contract processing unit to be updated, and whether or not the purchase and sale of securities made through the Internet from the client computer of the customer will be self-trading. A self-fake sale prevention system characterized in that a central processing unit judges by executing the program and displays a warning message for preventing a fake transaction by self-purchase on a client's client screen.   In the Buy Order Processing Department, a self-purchasing prevention process that determines that a self-purchase is made when a sell order registered in the transaction information database and a buy order of the same customer and the same brand are traded at the same price or higher is incorporated. The self-fake sale prevention system according to claim 1.   In the sell order processing department, a self-purchase prevention process that determines that it is a self-buy when a buy order registered in the transaction information database and a sell order of the same customer and the same brand are traded at the same price or less is incorporated. The self-fake sale prevention system according to claim 1.

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