A system for generating a display of at least one side of a market includes a computer system having one or more computers. The displayed side of the market includes one or more offers from one or more market participants. Each offer includes an offered price and an offered quantity. The computer system receives market data reflecting the one or more offers and generate a display of the received market data. The display includes a price axis, a quantity axis, and one or more offer bars. Each offer bar represents one or more offers including substantially equal offered prices. Placement of an offer bar along the price axis represents the substantially equal offered prices for the one or more offers represented by the offer bar. The height of an offer bar relative to the quantity axis representing the aggregate offered quantity for the one or more offers represented by the offer bar. The computer system accesses an average price specified by a user, calculates an offered quantity available at the specified average price based on the received market data, and indicates the calculated offered quantity within the display of the received market data.