BILS Long Put Strategy
BILS (State Street SPDR Bloomberg 3-12 Month T-Bill ETF), in the Financial Services sector, (Asset Management industry), listed on AMEX.
The State Street SPDR Bloomberg 3-12 Month T-Bill ETF seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the Bloomberg 3-12 Month U.S. Treasury Bill Index (the "Index")Seeks to provide exposure to publicly issued U.S. Treasury Bills that have remaining maturities between 3 and 12 monthsShort duration fixed income is less exposed to fluctuations in interest rates than longer duration securitiesRebalanced on the last business day of the month
BILS (State Street SPDR Bloomberg 3-12 Month T-Bill ETF) trades in the Financial Services sector, specifically Asset Management, with a market capitalization of approximately $3.99B, a beta of 0.02 versus the broader market, a 52-week range of 99.08-99.52, average daily share volume of 446K, a public-listing history dating back to 2020. These structural characteristics shape how BILS etf options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.02 indicates BILS has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. BILS pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a long put on BILS?
A long put buys downside exposure with a fixed maximum loss equal to the premium paid; profit accrues if the underlying closes below the strike minus premium at expiration.
Current BILS snapshot
As of May 15, 2026, spot at $99.31, ATM IV 4.80%, IV rank 4.17%, expected move 1.38%. The long put on BILS below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 34-day expiry.
Why this long put structure on BILS specifically: BILS IV at 4.80% is on the cheap side of its 1-year range, which favors premium-buying structures like a BILS long put, with a market-implied 1-standard-deviation move of approximately 1.38% (roughly $1.37 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated BILS expiries trade a higher absolute premium for lower per-day decay. Position sizing on BILS should anchor to the underlying notional of $99.31 per share and to the trader's directional view on BILS etf.
BILS long put setup
The BILS long put below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With BILS near $99.31, the first option leg uses a $99.31 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed BILS chain at a 34-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 BILS shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Put | $99.31 | N/A |
BILS long put risk and reward
- Net Premium / Debit
- N/A
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- Unbounded
- Breakeven(s)
- None on modeled curve
- Risk / Reward Ratio
- N/A
Max profit equals the strike minus premium times 100 (reached at zero); max loss equals the premium times 100. Breakeven is strike minus premium.
BILS long put payoff curve
Modeled P&L at expiration across a range of underlying prices for the long put on BILS. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.
When traders use long put on BILS
Long puts on BILS hedge an existing long BILS etf position or express a bearish view with defined risk; position sizing typically scales the put notional to the underlying BILS exposure being hedged.
BILS thesis for this long put
The market-implied 1-standard-deviation range for BILS extends from approximately $97.94 on the downside to $100.68 on the upside. A BILS long put expresses a directional view that the underlying closes below the strike minus premium at expiration, frequently sized to hedge an existing long BILS position with one put per 100 shares held. Current BILS IV rank near 4.17% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on BILS at 4.80%. As a Financial Services name, BILS options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to BILS-specific events.
BILS long put positions are structurally bearish; the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. BILS positions also carry Financial Services sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move BILS alongside the broader basket even when BILS-specific fundamentals are unchanged. Long-premium structures like a long put on BILS are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current BILS chain quotes before placing a trade.
Frequently asked questions
- What is a long put on BILS?
- A long put on BILS is the long put strategy applied to BILS (etf). The strategy is structurally bearish: A long put buys downside exposure with a fixed maximum loss equal to the premium paid; profit accrues if the underlying closes below the strike minus premium at expiration. With BILS etf trading near $99.31, the strikes shown on this page are snapped to the nearest listed BILS chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are BILS long put max profit and max loss calculated?
- Max profit equals the strike minus premium times 100 (reached at zero); max loss equals the premium times 100. Breakeven is strike minus premium. For the BILS long put priced from the end-of-day chain at a 30-day expiry (ATM IV 4.80%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a BILS long put?
- The breakeven for the BILS long put priced on this page is no defined breakeven on the modeled curve at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current BILS market-implied 1-standard-deviation expected move is approximately 1.38%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a long put on BILS?
- Long puts on BILS hedge an existing long BILS etf position or express a bearish view with defined risk; position sizing typically scales the put notional to the underlying BILS exposure being hedged.
- How does current BILS implied volatility affect this long put?
- BILS ATM IV is at 4.80% with IV rank near 4.17%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.