Rivals to XBI and PBE, including the iShares Nasdaq Biotechnology ETF (NasdaqGM: IBB) and the First Trust NYSE Arca Biotechnology Index Fund (NYSEArca: FBT), feature little to no exposure to Idenix. IBB, the largest biotech ETF, allocates 0.24% to Idenix while the stock is not a member of FBT’s portfolio.

The $499.9 million Market Vectors Biotech ETF (NYSEArca: BBH) also does not feature Idenix among its holdings.

SPDR S&P Biotech ETF


ETF Trends editorial team contributed to this post