Stock Profit Calculating amp; Profit Listing Method in Quote Windows of Cyber Quote Trading System

摘要

PURPOSE: A cyber trading service system and method is provided to enable a cyber trader to check various calculation results at any stage in a stock trading cycle, and to conveniently make a stock sale order. CONSTITUTION: The system comprises a main controller(110), a communication controller(120), a customer database(130), a stock holding amount database(140), a buying price database(150), an operation program input device(160), a profit/loss operation program database(170), a profit/loss calculator(180), and a stock price database(190). The communication controller(120) receives operation instruction key signals, an account number, an item code or a profit/loss item code and transmits them to the main controller(110) according as a user selects a drop down button, and outputs a profit/loss list according to a control of the main controller(110). The main controller(110) determines if the operation instruction key signals, the account number, the item code or the profit/loss item code are input, and makes the profit/loss calculator(180) calculate the profit/loss list by using a calculation program offered by the operation program input device(160) and data stored in the databases(130, 140, 150). The customer database(130) stores a user ID, a password, account data and personal data of the customer, and offers the stored data to determine if the log-in user is a member when the customer logs in a service system. The stock holding amount database(140) and the buying price database(150) offer stored data to the profit/loss calculator(180). The operation program input device(160) inputs various operation programs used in the main controller(110), and various profit/loss calculation programs for calculating a profit/loss list. The profit/loss operation program database(170) stores various profit/loss calculation programs input in the operation program input device(160). The profit/loss calculator(180) calculates the profit/loss by using the profit/loss operation program and three input variables. The stock price database(190) stores a reference price, a current price, an offered price, a sale amount for each offered price, a trading amount or an upper/lower price of a corresponding stock item transmitted from a stock exchange.