BIL · State Street SPDR Bloomberg 1-3 Month T-Bill ETF

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$91.53 +0.02 (+0.02%) At close · Aug 14

Options Chain

Underlying $91.53 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 50 contracts · mixed snapshot sessions · Jul 1, 2026–Aug 14, 2026; 19 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Oct 16 62d Jan 15 153d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
2	6	54.5%	0.972	$11.64		$0.04	—	—	1	11
Call · $80 In the money Snapshot session Aug 13, 2026 Last $11.64 Breakeven $91.64 Implied vol 54.5% Delta 0.972 ≈97% ITM Gamma 0.01 Theta -0.032 Vega 0.006 Open interest 2 Model this call Put · $80 Snapshot session Jul 15, 2026 Last $0.04 Breakeven $79.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 Model this put
2	2	79.5%	0.885	$10.60		$0.04	—	—	5	11
Call · $81 In the money Snapshot session Aug 13, 2026 Last $10.60 Breakeven $91.60 Implied vol 79.5% Delta 0.885 ≈89% ITM Gamma 0.02 Theta -0.144 Vega 0.02 Open interest 2 Model this call Put · $81 Snapshot session Jul 15, 2026 Last $0.04 Breakeven $80.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 Model this put
2	2	49.8%	0.953	$9.60		$0.04	—	—	1	7
Call · $82 In the money Snapshot session Aug 14, 2026 Last $9.60 Breakeven $91.60 Implied vol 49.8% Delta 0.953 ≈95% ITM Gamma 0.016 Theta -0.044 Vega 0.012 Open interest 2 Model this call Put · $82 Snapshot session Jul 15, 2026 Last $0.04 Breakeven $81.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 Model this put
2	6	68%	0.869	$8.60		$0.04	—	—	1	5
Call · $83 In the money Snapshot session Aug 10, 2026 Last $8.60 Breakeven $91.60 Implied vol 68% Delta 0.869 ≈87% ITM Gamma 0.026 Theta -0.135 Vega 0.031 Open interest 2 Model this call Put · $83 Snapshot session Jul 10, 2026 Last $0.04 Breakeven $82.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
3	2	44.5%	0.93	$7.60		$0.04	—	—	1	2
Call · $84 In the money Snapshot session Aug 14, 2026 Last $7.60 Breakeven $91.60 Implied vol 44.5% Delta 0.93 ≈93% ITM Gamma 0.025 Theta -0.055 Vega 0.021 Open interest 3 Model this call Put · $84 Snapshot session Jul 9, 2026 Last $0.04 Breakeven $83.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
4	2	55.7%	0.847	$6.60		$0.04	—	—	1	3
Call · $85 In the money Snapshot session Aug 14, 2026 Last $6.60 Breakeven $91.60 Implied vol 55.7% Delta 0.847 ≈85% ITM Gamma 0.035 Theta -0.122 Vega 0.031 Open interest 4 Model this call Put · $85 Snapshot session Jul 15, 2026 Last $0.04 Breakeven $84.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	28.3%	0.951	—		$0.04	—	—	1	3
Call · $86 In the money Snapshot session Unknown Last — Breakeven — Implied vol 28.3% Delta 0.951 ≈95% ITM Gamma 0.029 Theta -0.026 Vega 0.012 Open interest 0 Model this call Put · $86 Snapshot session Jul 9, 2026 Last $0.04 Breakeven $85.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	4	42.1%	0.821	$4.55		—	—	—	—	0
Call · $87 In the money Snapshot session Aug 14, 2026 Last $4.55 Breakeven $91.55 Implied vol 42.1% Delta 0.821 ≈82% ITM Gamma 0.051 Theta -0.102 Vega 0.032 Open interest 0 Model this call Put · $87 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	30.8%	0.833	$3.70		—	—	—	—	0
Call · $88 In the money Snapshot session Jul 1, 2026 Last $3.70 Breakeven $91.70 Implied vol 30.8% Delta 0.833 ≈83% ITM Gamma 0.066 Theta -0.071 Vega 0.032 Open interest 0 Model this call Put · $88 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
3	6	13.8%	0.937	$2.55		—	—	—	—	0
Call · $89 In the money Snapshot session Aug 14, 2026 Last $2.55 Breakeven $91.55 Implied vol 13.8% Delta 0.937 ≈94% ITM Gamma 0.074 Theta -0.016 Vega 0.012 Open interest 3 Model this call Put · $89 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	18.7%	0.752	—		—	—	—	—	0
Call · $90 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.7% Delta 0.752 ≈75% ITM Gamma 0.138 Theta -0.055 Vega 0.042 Open interest 0 Model this call Put · $90 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	3	—	—	$0.35		$0.47	—	—	1	0
Call · $91 In the money Snapshot session Aug 14, 2026 Last $0.35 Breakeven $91.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $91 Snapshot session Aug 14, 2026 Last $0.47 Breakeven $90.53 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
Underlying $91.53
16	3	—	—	$0.05		$0.85	-0.554	24.6%	6	0
Call · $92 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $92.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 Model this call Put · $92 In the money Snapshot session Aug 14, 2026 Last $0.85 Breakeven $91.15 Implied vol 24.6% Delta -0.554 ≈55% ITM Gamma 0.131 Theta -0.091 Vega 0.049 Open interest 0 Model this put
0	—	—	—	—		$1.45	—	—	2	0
Call · $93 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $93 In the money Snapshot session Aug 14, 2026 Last $1.45 Breakeven $91.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$2.46	—	—	8	0
Call · $94 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $94 In the money Snapshot session Aug 13, 2026 Last $2.46 Breakeven $91.54 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $95 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $95 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $96 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $96 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $97 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $97 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$6.70	—	—	2	0
Call · $98 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $98 In the money Snapshot session Jul 24, 2026 Last $6.70 Breakeven $91.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$7.89	—	—	2	0
Call · $99 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $99 In the money Snapshot session Jul 24, 2026 Last $7.89 Breakeven $91.11 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$8.89	—	—	2	0
Call · $100 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $100 In the money Snapshot session Jul 24, 2026 Last $8.89 Breakeven $91.11 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$9.92	—	—	2	0
Call · $101 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $101 In the money Snapshot session Jul 24, 2026 Last $9.92 Breakeven $91.08 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$11.04	—	—	2	0
Call · $102 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $102 In the money Snapshot session Jul 24, 2026 Last $11.04 Breakeven $90.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	—	—	$0.04		$11.50	-0.983	41.5%	2	0
Call · $103 Snapshot session Jul 16, 2026 Last $0.04 Breakeven $103.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $103 In the money Snapshot session Jul 24, 2026 Last $11.50 Breakeven $91.50 Implied vol 41.5% Delta -0.983 ≈98% ITM Gamma 0.008 Theta -0.016 Vega 0.007 Open interest 0 Model this put
2	2	—	—	$0.04		$13.10	-0.984	44.5%	18	0
Call · $104 Snapshot session Jul 10, 2026 Last $0.04 Breakeven $104.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $104 In the money Snapshot session Jul 21, 2026 Last $13.10 Breakeven $90.90 Implied vol 44.5% Delta -0.984 ≈98% ITM Gamma 0.008 Theta -0.016 Vega 0.007 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 1, 2026–Aug 14, 2026; 19 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.

Key facts CIK 1081019 CUSIP 78468R663 13F (30d) 368 filings 363 filers Visit website