State Street SPDR S&P Biotech ETF (XBI) is listed on NYSEArca. 52-week range 103.43 to 169.89 USD. Data as of 2026-10-09.
In seeking to track the performance of the S&P Biotechnology Select Industry Index (the "index"), the fund employs a sampling strategy. It generally invests substantially all, but at least 80%, of its total assets in the securities comprising the index. The index represents the biotechnology segment of the S&P Total Market Index ("S&P TMI").