Patent ID: 7844531

Claim:
A system for trading at an electronic exchange, the system comprising: a trading device adapted to receive a definition for a spread to electronically trade between a first tradeable object and a second tradeable object, wherein the first tradeable object and the second tradeable object are listed at an electronic exchange, the trading device further adapted to receive a desired spread price to buy or sell a designated quantity of the spread, the trading device further adapted to determine a first total quantity to buy or sell the first tradeable object and a second total quantity to buy or sell the second tradeable object based on the designated quantity, the trading device further adapted to generate a plurality of orders to buy or sell the first total quantity of the first tradeable object, wherein each of the plurality of orders comprises a different price level based on a market price in the second tradeable object, the desired spread price, and quantity available at specific price levels comprising the market price in the second tradeable object, the trading device further adapted to assign a quantity to each of the plurality of orders based on the quantity available at the specific price levels in the second tradeable object such that the quantity assigned to the plurality of orders comprises the first total quantity, the trading device further adapted to send the plurality of orders to the electronic exchange.