SPAB · State Street(R) SPDR(R) Portfolio Aggregate Bond ETF ETF

Alerts for SPAB

$24.99 +0.00 (+0.00%) At close · Sep 4

Options Chain

Underlying $24.99 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 38 contracts · daily-bar sessions unknown

Put / call OI

—

open-interest date unavailable

Open interest

—

open-interest date unavailable

Volume

—

daily-bar sessions unknown

ATM implied vol

10.8%

market's expected move

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Nov 20 76d Feb 19 167d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$7.90	$10.20	—		—	$0.00	$0.10	—	—	—	—
Call · $16 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.047 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $16 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.305 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.90	$9.20	—		—	$0.00	$0.10	—	—	—	—
Call · $17 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:24.681 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $17 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.304 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	90.3%	0.978	$5.90	$8.20	—		—	$0.00	$0.10	—	—	—	—
Call · $18 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.606 UTC Last — Breakeven — Implied vol 90.3% Delta 0.978 ≈98% ITM Gamma 0.012 Theta -0.01 Vega 0.003 Open interest — OI effective date — Model this call Put · $18 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.305 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	77%	0.976	$4.90	$7.20	—		—	$0.00	$0.10	—	—	—	—
Call · $19 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.268 UTC Last — Breakeven — Implied vol 77% Delta 0.976 ≈98% ITM Gamma 0.016 Theta -0.01 Vega 0.003 Open interest — OI effective date — Model this call Put · $19 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	64.2%	0.972	$3.90	$6.20	—		—	$0.00	$0.10	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:11.541 UTC Last — Breakeven — Implied vol 64.2% Delta 0.972 ≈97% ITM Gamma 0.021 Theta -0.009 Vega 0.003 Open interest — OI effective date — Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	51.9%	0.967	$2.90	$5.20	—		—	$0.00	$0.10	—	—	—	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.464 UTC Last — Breakeven — Implied vol 51.9% Delta 0.967 ≈97% ITM Gamma 0.03 Theta -0.009 Vega 0.004 Open interest — OI effective date — Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:59:02.065 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	39.9%	0.96	$1.90	$4.20	—		—	$0.00	$0.10	—	—	—	—
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.824 UTC Last — Breakeven — Implied vol 39.9% Delta 0.96 ≈96% ITM Gamma 0.046 Theta -0.008 Vega 0.004 Open interest — OI effective date — Model this call Put · $22 Daily-bar session Unknown Quote as of 2026-09-04 19:59:04.826 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	20.7%	0.985	$1.95	$2.10	—		—	$0.00	$0.10	—	—	—	—
Call · $23 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol 20.7% Delta 0.985 ≈99% ITM Gamma 0.038 Theta -0.004 Vega 0.002 Open interest — OI effective date — Model this call Put · $23 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.695 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	10.8%	0.98	$0.95	$1.10	—		—	$0.00	$0.10	—	—	—	—
Call · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:04.831 UTC Last — Breakeven — Implied vol 10.8% Delta 0.98 ≈98% ITM Gamma 0.095 Theta -0.003 Vega 0.002 Open interest — OI effective date — Model this call Put · $24 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $24.99
—	—	—	—	$0.00	$1.15	—		—	$0.00	$0.10	—	—	—	—
Call · $25 Daily-bar session Unknown Quote as of 2026-09-04 19:59:41.295 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:13.448 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$0.90	$1.10	-0.921	14.3%	—	—
Call · $26 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $26 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:45.326 UTC Last — Breakeven — Implied vol 14.3% Delta -0.921 ≈92% ITM Gamma 0.219 Theta -0.001 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$1.90	$2.10	-0.948	24.5%	—	—
Call · $27 Daily-bar session Unknown Quote as of 2026-09-04 19:59:04.820 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:27.468 UTC Last — Breakeven — Implied vol 24.5% Delta -0.948 ≈95% ITM Gamma 0.093 Theta -0.002 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$2.90	$3.10	-0.958	33.8%	—	—
Call · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol 33.8% Delta -0.958 ≈96% ITM Gamma 0.056 Theta -0.003 Vega 0.004 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$3.90	$4.10	-0.964	42.5%	—	—
Call · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.699 UTC Last — Breakeven — Implied vol 42.5% Delta -0.964 ≈96% ITM Gamma 0.039 Theta -0.003 Vega 0.004 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$4.90	$5.10	-0.968	50.6%	—	—
Call · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.690 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.695 UTC Last — Breakeven — Implied vol 50.6% Delta -0.968 ≈97% ITM Gamma 0.03 Theta -0.004 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$5.90	$6.10	-0.97	58.4%	—	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.695 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol 58.4% Delta -0.97 ≈97% ITM Gamma 0.024 Theta -0.004 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$6.90	$7.10	-0.972	65.9%	—	—
Call · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol 65.9% Delta -0.972 ≈97% ITM Gamma 0.021 Theta -0.005 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$7.90	$8.10	-0.974	73.1%	—	—
Call · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:55:56.335 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol 73.1% Delta -0.974 ≈97% ITM Gamma 0.018 Theta -0.005 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$8.90	$9.10	-0.975	80%	—	—
Call · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.236 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:52.686 UTC Last — Breakeven — Implied vol 80% Delta -0.975 ≈97% ITM Gamma 0.016 Theta -0.005 Vega 0.003 Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has daily-bar sessions unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

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