Once electronic trading took over, big local traders trimmed back their trade size. By 6/2/2021 It’s been six years since CME Group shifted from trading agricultural commodities mostly on the floor of the exchange to its electronic trading platform (Globex). In July 2015, the exchange closed its agricultural futures trading pits, leaving open only its options trading pits. This May, CME Group officially closed all its open-outcry trading pits, ending a tradition that started in the mid-19th century. The Chicago Board of Trade (CBOT) Exchange opened in 1848. Corn, whea...