On-screen roller controlled price change

Abstract

A system and method of providing control of prices in an on screen window having a price held for further transactions on an interface for traders of financial instruments. The interface contains a display of products for trading and respective prices for bids and offers. The user has a control device such as a computer mouse with a roller control. Selection of a particular product results in the display of the price of the product at the instant time the product is selected. The price is held until a confirming key or mouse stroke is received to initiate a trading action such as placing a new order, killing an existing order or hitting or lifting an order. The price can be altered by means of the roller control.

1 . A system for controlling a price in an electronic trading system for products, the trading system including an exchange server coupled to trading computers, the exchange server sending current prices of products for bid or offer by users of the trading computer and wherein the exchange server updates the current prices based on bids or offers, the system including a computer program having a user interface screen displayed on the trading computers and a user input device having a roller control, the user input device controlling a cursor which appears on the user interface screen and system, said system comprising: 
 a series of product orders;    a series of cells of prices offered for the product orders;    a series of cells of prices bid for the product orders;    a single click window which appears when the cursor is moved over any cell in the series of cells of prices offered for the products or the series of prices bid for the products; and    wherein the single click window displays the price in the cell at the moment the cursor enters the cell and wherein the roller control allows a user to change the price in the single click window.    
   
   
       2 . The system of  claim 1  wherein the single click window shows the quantity of the product related to the displayed price.  
   
   
       3 . The system of  claim 1  wherein the user input device includes a first button and the user may initiate an order at the displayed price by pressing the first button.  
   
   
       4 . The system of  claim 1  wherein the user may initiate a new product order at the price displayed in the single click window by activating the input device.  
   
   
       5 . The system of  claim 2  further comprising a display to select a predetermined quantity for the quantity displayed in the lock window.  
   
   
       6 . The system of  claim 1  wherein the products are energy contracts and energy derivatives.  
   
   
       7 . The system of  claim 1  wherein the series of cells of product orders, prices offered for the product orders, and prices bid for the product orders are arranged in columns according to rows of products.  
   
   
       8 . The system of  claim 1  wherein the user input device includes a first button and a second button wherein the user may initiate a new product order of a predetermined quantity at the price displayed in the single click window by actuating the first button or initiate a new product order of a second predetermined quantity at the price displayed in the single click window by activating the second button.