XBI - State Street SPDR S&P Biotech ETF
The State Street SPDR S&P Biotech ETF seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of the S&P Biotechnology Select Industry Index (the "Index")Seeks to provide exposure to the Biotechnology segment of the S&P TMI, which comprises the following sub-industries: BiotechnologySeeks to track a modified equal weighted index which provides the potential for unconcentrated industry exposure across large, mid and small cap stocksAllows investors to take strategic or tactical positions at a more targeted level than traditional sector based investing
As of May 15, 2026: spot at $130.88, ATM IV 29.5%, max pain $130.00, net GEX $1.9M.
- Sector
- Financial Services
- Industry
- Asset Management
- Market Cap
- $8.35B
- Beta
- 1.09
- 52-Week Range
- 75.71-139.19
- Dividend Yield
- $0.44
- IPO Date
- Feb 6, 2006
- Exchange
- AMEX
What XBI Looks Like to Options Traders Today
IV rank of 37.6% sits near the 1-year median, where strategy choice depends on directional conviction and the event calendar rather than vol regime alone; positive net gamma exposure ($1.9M) means dealers hedge against trend, damping realized volatility and biasing price toward heavy-OI strikes; the 25-delta skew (0.006) is roughly flat across the wings.
What This Page Covers
The XBI overview links into per-metric analysis views: max pain, gamma exposure, volatility skew, expected move, options chain, open interest history, and aggregate Greeks. Microstructure data is available on short interest, short volume, fail-to-deliver, and market structure.
Frequently asked XBI overview questions
- What is XBI?
- XBI is the ticker symbol for State Street SPDR S&P Biotech ETF, an listed exchange-traded fund. The State Street SPDR S&P Biotech ETF seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of the S&P Biotechnology Select Industry Index (the "Index")Seeks to provide exposure to the Biotechnology segment of the S&P TMI, which comprises the following sub-industries: BiotechnologySeeks to track a modified equal weighted index which provides the potential for unconcentrated industry exposure across large, mid and small cap stocksAllows investors to take strategic or tactical positions at a more targeted level than traditional sector based investing Listed on AMEX. XBI is the ETF ticker shown on this page; ETF traders use the fund for diversified exposure to its underlying basket, for sector and factor rotation, and for hedging or replication strategies via the listed options chain.
- What does the XBI options snapshot look like today?
- As of May 15, 2026, the XBI options snapshot shows spot at $130.88, ATM IV 29.5%, IV rank 37.6%, max pain $130.00, net GEX $1.9M, expected move 8.46%. The full options chain, Greeks by strike and expiration, per-strike open-interest distribution, dealer gamma and delta exposure, and the volatility skew surface are linked from this overview page. Each per-metric route refreshes once per trading session and reflects the most recent close-of-business listed-options state.
- What are XBI's key statistics?
- State Street SPDR S&P Biotech ETF (XBI) carries a market capitalization of $8.35B, 52-week range of 75.71-139.19. Full holdings disclosure, expense ratio, and tracking-error history live on the per-ticker fundamentals page or the sponsor's site; daily NAV and premium/discount-to-NAV are accessible from the same view. These structural inputs frame how the ETF options market prices implied volatility relative to its constituents.
- What sector or industry does XBI belong to?
- State Street SPDR S&P Biotech ETF operates in the Financial Services sector, in the Asset Management industry. Sector classification affects how the ticker correlates with sector ETFs, how it reacts to macro factors like rate moves and commodity prices, and how its options pricing compares to sector peers. Compare XBI's implied volatility and skew against sector benchmarks to gauge whether the options market is pricing single-name or systemic risk relative to the broader peer group.
- How current is the XBI data on this page?
- The options snapshot above is dated May 15, 2026 and refreshes once per session, with all per-strike Greeks and exposure aggregates recomputed at the daily close. Fund-level fields (sponsor, expense ratio, holdings concentration where available) refresh from the vendor feed nightly. ETF-specific filings (N-CSR, N-PX, N-CEN) update on the SEC EDGAR cadence. FINRA microstructure data refreshes on the source's cadence; for ETFs the off-exchange volume signal is dominated by authorized-participant creation and redemption rather than directional flow.