A Tough Day For Some Biotech Bulls By: Benzinga via Benzinga November 23, 2016 at 13:45 PM EST Stumbles by several top biotech names are weighing on the iShares NASDAQ Biotechnology Index (ETF) (NASDAQ: IBB) on ... Read More >> Related Stocks: Cellectar Biosc Eli Lilly FINANCIAL SEL INDUSTRIAL SEL Nasdaq Biotechnology Ishares ETF