Patent ID: 8543489

Claim:
A method comprising: receiving, via an input device for a trading device, a plurality of predetermined quantity levels from a user; computing, via the trading device, a plurality of effective prices, where the plurality of effective prices includes a corresponding computed effective ask price and a corresponding computed effective bid price for each predetermined quantity level of the plurality of predetermined quantity levels according to market information for a tradeable object; generating and displaying, via the trading device, an effective price axis, the effective price axis comprising the plurality of effective prices, including each computed effective ask price and each computed effective bid price, being sequentially aligned along the effective price axis; generating and displaying, via the trading device, an effective ask region aligned with the effective price axis, where for each computed effective ask price, an indicator for the corresponding predetermined quantity level for the computed effective ask price is generated in the effective ask region in alignment with the corresponding computed effective ask price; and generating and displaying, via the trading device, an effective bid region aligned with the effective price axis, where for each computed effective bid price, an indicator for the corresponding predetermined quantity level for the computed effective bid price is generated in the effective bid region in alignment with the corresponding computed effective bid price.