A weighted average of the closing settlement prices of three Wheat Futures Contracts that are traded on the CBOT, specifically: (1) the second-to-expire CBOT Wheat Futures Contract, weighted 35%, (2) the third-to-expire CBOT Wheat Futures Contract, weighted 30%, and (3) the CBOT Wheat Futures Contract expiring in the December following the expiration month of the third-to-expire contracts, weighted 35%. To convert to an index, 100 is set to $25, the opening day price of WEAT.