I'm new to futures.
what is the difference between soybean (ZS) and soybean (S). i know ZS is traded on eCBOT and S is traded on CBOT. trading time is from 6:31 PM to 1:15 PM. and S is traded on CBOT and trading is from 9:30 AM to 1:15 PM.
the trading hours are different. what else is...