The Biofuels Digest Index, an index of publicly traded biofuels stocks, gained 0.61 percent to 67.85 as chemicals rallied. For the day, Metabolix (MBLX) was up 8.33 percent to $4.16, while BASF (BAS.F) soared 5.16 percent to $86.20. Among other equities, Total (TOT) climbed 3.73 percent to $51.75. Overall, advances led declines by a 3 to 2 ratio for the day.