The Biofuels Digest Index, an index of publicly traded biofuels stocks, dropped 0.86 percent to 63.00 as ethanol equities waned. For the day, Amyris (AMRS) settled back 9.00 percent to $1.82, while Aemetis (AMTX) slid 3.21 percent to $3.62. Among other equities, Codexis (CDXS) rallied 5.28 percent to $4.19. Overall, declines led advances by a 11 to 5 ratio for the day.
