The Biofuels Digest Index, an index of publicly traded biofuels stocks, fell 1.06 percent to 67.33 as advanced biofuels slumped. For the day, BASF (BAS.F) shed 3.20 percent to $86.25, while Dyadic (DYAI) dumped 5.79 percent to $1.14. Among other equities, Solazyme (SZYM) lost 3.49 percent to $3.60. Overall, declines led advances by a 2 to 1 ratio for the day.