State Street SPDR S&P Biotech ETF (XBI) holdings
Top holdings
The 10 largest positions make up 16.0% of the fund, as reported on Aug 27, 2026.
Frequently asked questions
What are the top holdings of XBI?
As of Aug 27, 2026, the largest positions in State Street SPDR S&P Biotech ETF are MRNA (2.9%), TWST (2.0%), APGE (1.5%), KYMR (1.4%), NTRA (1.4%).
How concentrated is XBI?
The 10 largest positions make up 16.0% of State Street SPDR S&P Biotech ETF, as reported on Aug 27, 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.