After suffering a 20 percent drop in value during August and September, the BioWorld Blue Chip Biotech Index, comprising 20 of the leading companies ranked by market cap, recovered over half of its losses with an 11.5 percent jump in October. Biotech benefited from a calmer, more positive period in the capital markets with the Nasdaq Composite index and the Dow Jones Industrial Average also recording strong growth of 10 percent and 9 percent, respectively.