The Biofuels Digest Index, an index of publicly traded biofuels stocks, gained 0.23 percent to 68.78 as advanced biofuels surged. For the day, Gevo (GEVO) rocketed up 46.07 percent to $2.92 one day after a 1-15 reverse split, while Ceres (CERE) slumped 6.67 percent to $1.76. Among other equities, Codexis (CDXS)( rallied 4.34 percent to $4.76. Overall, advances led declines by a 8 to 7 ratio for the day.