Patent ID: 8612331

Claim:
A prediction market system comprising: a computer system comprising a server computer and at least one database in electronic, digital communication over a network, connectable or accessible remotely through the network by at least one other remote computing device, the server running a software providing: an automated market maker; a liquidity management system (LMS) with administrative controls for the market maker for sensitivity, quantity, fulcrum and window that adjust a liquidity value; an investment transaction interface comprising an interactive slider interface with a slider control that allows one-step user selection to choose the amount of stock the user is to buy or sell; wherein the sensitivity is about 20; the quantity is about 100; the fulcrum is about 50.00 and the window is about 30; wherein the slider movement in a first direction indicates selling and slider movement in the opposite direction indicates buying and wherein the automated market maker automatically calculates and displays in the investment transaction interface the amount of stock the user is to receive or sell; thereby providing a prediction market system that is intuitive and gives good predictions.