The Digest Bioeconomy Index, an index of publicly traded advanced bioeconomy stocks, dropped 0.81 percent to 52.62 as advanced bio shares dipped. For the day, Gevo (GEVO) lost 5.00 percent to $2.09, while Renewable Energy Group (REGI) jumped 4.49 percent to $8.14. Among other equities, Aemetis (AMTX) was down 7.13 percent to $3.17. Overall, declines led advances 7 to 4 for the day.