iShares Nasdaq Biotechnology ETF (NYSEArca: IBB)

Investors who still want to enter the space should target bio-tech large- and mid-caps with more stable earnings and product lines. Looking at ETF market capitalization allocations, IBB follows a traditional market-cap weighted indexing methodology, with large positions in large-caps. [Sell-Off in Biotech ETFs Could Be a Temporary Setback]

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