The Biofuels Digest Index, an index of publicly traded biofuels stocks, fell 0.67 percent to 60.95 as ethanol equities were drubbed. For the day, Pacific Ethanol (PEIX) dumped 9.95 percent to $7.78, while Amyris (AMRS) lost 5.53 percent to $1.64. Among other equities, Gevo (GEVO) rebounded 7.26 percent to $2.07. Overall, declines led advances by a 9 to 5 ratio for the day.