The Digest Bioeconomy Index, an index of publicly traded advanced bioeconomy stocks, slipped 0.16 percent to 50.37 as ethanol equites slid. For the day, Solazyme (SZYM) fell back 5.00 percent to $2.47, while Metabolix gained 12.32 percent to $1.55. Among other equities, Aemetis (AMTX) dumped 9.09 percent to $2.50. Overall, advances led declines 2 to 1 for the day.