iShares Biotechnology ETF (IBB) holdings
Top holdings
The 10 largest positions make up 50.6% of the fund, as reported on Oct 13, 2026.
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Frequently asked questions
What are the top holdings of IBB?
As of Oct 13, 2026, the largest positions in iShares Biotechnology ETF are GILD (8.4%), AMGN (8.0%), VRTX (7.4%), MRNA (5.8%), REGN (5.5%).
How concentrated is IBB?
The 10 largest positions make up 50.6% of iShares Biotechnology ETF, as reported on Oct 13, 2026.
Fund holdings are reported periodically and are a snapshot of a past date, not a live position list — what the fund holds today may differ. Weights cover only the largest positions shown, not the whole portfolio.
This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.