Average at-the-money bid-offer spread: 6 ticks
Average size at the bid & offer: 200 contracts
CBOT TMI Futures traded in its first week with bid/ask spreads ranging from .05 - .15 (1-3 ticks) normally 4 levels deep. The large contract size (approx. $135,000) and 100% electronic market provides you with the opportunity to trade the total U.S. Stock market efficiently.