Automatic ordering method and system for trading of stock, bond, item, future index, option, index current and so on

An automatic ordering method, the method using a computer system connected to a data communication network, comprising:

• a) selecting a trade-desired stock and inputting an automatic trade condition including purchase and selling conditions at the computer system, the automatic trade condition comprising a selling price, a selling quantity, a purchase price and a purchase quantity;
• b) placing through the data communication network a stock purchase order or a stock selling order according to the trade condition;
• c) determining whether or not the stock selling order or a stock purchase order has been contracted through the data communication network;
• and
• d) placing by a computer through the data communication network a new stock selling and purchase order at a new price according to the automatic trade condition when the stock selling or purchase order is contracted according to step c),
• wherein step a) is executed by a user and the steps b), c), d) are executed without the intervention of the user;
• the new selling order price in step d) is higher than the contracted price determined in step c), and the new purchase order price in step d) is lower than the contracted price determined in step c).

An automatic stock ordering method, the method of trading stocks using a computer system connected to a data communication network, the method comprising:

• a) selecting a trade-desired stock and inputting an automatic trade condition including a purchase condition and a selling condition in the computer system, the automatic trade condition comprises a selling price, a selling quantity, a purchase price and a purchase quantity;
• b) placing through the data communication network one or more stock selling order(s) orders and one or more purchase order(s) according to the trade condition;
• c) determining whether or not the stock selling or purchase order has been contracted through the data communication network;
• and
• d) placing by the computer through the data communication network new stock selling and purchase orders at a new price according to the automatic stock trade condition when the stock selling or purchase order is contracted according to step c),
• wherein step a) is executed by a user and steps b), c), d) are executed without the intervention of the user, the new selling order price in step d) is higher than the contracted price determined in step c), and the new purchase order price in step d) is lower than the contracted price determined in step c).