The Biofuels Digest Index, an index of publicly traded biofuels stocks, gained 0.91 percent to 71.00 as ethanol equities soared. For the day, Biofuel Energy (BIOF) soared 25.84 percent to $2.24, while Pacific Ethanol (PEIX) climbed 9.23 percent to $5.56. Among other equities, Sacom (SAM.MI) fell 6.06 percent to $6.97. Overall, advances led declines 3 to 2 for the day.