slider bar with the terminals of the bar representing maximum and minimum prices the price range may be set by the market administrator or agreed to by the participants whenever any trader indicates a desire to buy or sell that intent is indicated by a line or tick mark on the slider of the market for example referring to nuts 401 there are two buy orders at the lower end of the slider and a sell order somewhat higher than the buy orders in operation the buy and sell orders can each have a unique color to easily indicate at a glance the type of transaction that is contemplated during a market session the buy and sell requests fluctuate throughout the duration for example there is only a single sell order for screws 403 by contrast there are eight sell orders for nails and only a single buy order as might also be expected the buy orders are consistently lower than the sell orders the market binary 201 handles the display and updating of the browser window illustrated in fig4 when a transaction is completed the market binary also handles the updating of each trader 39 s account the system may be a continuous trading scheme or a batch trading scheme as desired by the market creator the system can be enabled for limit or open order trading as well in one embodiment when an offer is made to sell at a price below or equal.