The Biofuels Digest Index, an index of publicly traded biofuels stocks, jumped 1.05 percent to 67.68 as 2013’s Santa Claus rally continued. For the day, Pacific Ethanol (PEIX) gained 6.38 percent to $4.67, while KiOR (KIOR) lost 4.38 percent to $1.53. Among other equities, Amyris (AMRS) surged 6.83 percent to $3.91. Overall, advances led declines 9 to 4 for the day.