The Biofuels Digest Index, an index of publicly traded biofuels stocks, was flat at 68.53 as ethanol equities advanced. For the day, Ceres (CERE) settled back 7.29 percent to $2.40, while Pacific Ethanol (PEIX) soared 10.29 percent to $13.40. Among other equities, Aemetis (ANTX) dropped 3.84 percent to $4.79. Overall, declines and advances were even for the day.