Patent ID: 8386364

Claim:
A trading terminal in communication with one or more electronic trading systems, the trading terminal comprising: memory for storing computer readable instructions; one or more network interfaces in communication with one or more electronic trading systems; and one or more computer processors in communication with the one or more network interfaces and the memory, the one or more computer processors configured to perform steps comprising: monitoring trading data for a plurality of single-leg trades; calculating a probability that each single-leg trade in the plurality of single-leg trades will execute, wherein calculating the probability that a particular single-leg trade in the plurality of single-leg trades will execute is based on the monitored trading data; calculating a probability of executing a requested trade of a synthetic instrument based on a price of the synthetic instrument at a specific volume to be traded of the synthetic instrument, and based on the probability that each single-leg trade in the plurality of single-leg-trades will execute, wherein the synthetic instrument is based on at least one financial instrument and the synthetic instrument includes the plurality of single-leg trades; displaying the probability of executing the requested trade for the synthetic instrument including displaying the probability of executing each of the plurality of single-leg trades; receiving instructions to execute the requested trade of the synthetic instrument; and simultaneously sending execution instructions to execute each of the plurality of single-leg trades of the synthetic instrument.