BILS - State Street SPDR Bloomberg 3-12 Month T-Bill ETF
This State Street SPDR ETF aims to mirror the investment performance, encompassing both price changes and yield, of the Bloomberg 3-12 Month U. S. Treasury Bill Index, before accounting for fees and expenses.
As of Jun 30, 2026: spot at $99.38, ATM IV 8.5%, max pain $100.00, net GEX -$616.9K.
- Sector
- Financial Services
- Industry
- Asset Management - Bonds
- Market Cap
- $3.89B
- Beta
- 0.02
- 52-Week Range
- 99.08-99.52
- Dividend Yield
- $3.78
- IPO Date
- Oct 7, 2020
- Exchange
- AMEX
What BILS Looks Like to Options Traders Today
IV rank of 9.9% is subdued relative to the 1-year history, conditions that typically favor premium-buying or long-volatility structures (debit spreads, calendar spreads, long straddles); negative net gamma exposure (-$616.9K) means dealers hedge with trend, amplifying realized volatility and accelerating directional moves; the 25-delta skew (0.014) is roughly flat across the wings.
What This Page Covers
The BILS 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 BILS overview questions
- What is BILS?
- BILS is the ticker symbol for State Street SPDR Bloomberg 3-12 Month T-Bill ETF, an listed exchange-traded fund. This State Street SPDR ETF aims to mirror the investment performance, encompassing both price changes and yield, of the Bloomberg 3-12 Month U. S. Listed on AMEX. BILS 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 BILS options snapshot look like today?
- As of Jun 30, 2026, the BILS options snapshot shows spot at $99.38, ATM IV 8.5%, IV rank 9.9%, max pain $100.00, net GEX -$616.9K, expected move 2.44%. 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 BILS's key statistics?
- State Street SPDR Bloomberg 3-12 Month T-Bill ETF (BILS) carries a market capitalization of $3.89B, 52-week range of 99.08-99.52. 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 BILS belong to?
- State Street SPDR Bloomberg 3-12 Month T-Bill ETF operates in the Financial Services sector, in the Asset Management - Bonds 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 BILS'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 BILS data on this page?
- The options snapshot above is dated Jun 30, 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.