SPSB · State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF ETF

Alerts for SPSB

$29.81 +0.00 (+0.00%) At close · Sep 4

Options Chain

Underlying $29.81 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 38 contracts · mixed daily-bar sessions · Aug 6, 2026–Sep 4, 2026; 35 unknown

Put / call OI

0.00

Call-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$30.00

$0.19 above spot

ATM implied vol

4.9%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 12d Oct 16 40d Nov 20 75d Feb 19 166d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$8.70	$8.90	—		—	$0.00	$0.10	—	—	—	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:15.240 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.426 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.70	$7.90	—		—	$0.00	$0.10	—	—	—	—
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:14.994 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.425 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.70	$6.90	—		—	$0.00	$0.10	—	—	—	—
Call · $23 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.051 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $23 Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.781 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$5.70	$5.90	—		—	$0.00	$0.10	—	—	—	—
Call · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:14.165 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $24 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.70	$4.90	—		—	$0.00	$0.10	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.329 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.717 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	48.1%	0.948	$3.80	$4.00	—		—	$0.00	$0.10	—	—	—	—
Call · $26 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:48.764 UTC Last — Breakeven — Implied vol 48.1% Delta 0.948 ≈95% ITM Gamma 0.041 Theta -0.014 Vega 0.006 Open interest — OI effective date — Model this call Put · $26 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.991 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	32.9%	0.956	$2.80	$2.95	—		—	$0.00	$0.10	—	—	—	—
Call · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.963 UTC Last — Breakeven — Implied vol 32.9% Delta 0.956 ≈96% ITM Gamma 0.052 Theta -0.009 Vega 0.005 Open interest — OI effective date — Model this call Put · $27 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.930 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	22.8%	0.942	$1.80	$1.95	—		—	$0.00	$0.10	—	—	—	—
Call · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.814 UTC Last — Breakeven — Implied vol 22.8% Delta 0.942 ≈94% ITM Gamma 0.095 Theta -0.009 Vega 0.006 Open interest — OI effective date — Model this call Put · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.887 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	12.3%	0.904	$0.80	$0.95	—		—	$0.00	$0.10	—	—	—	—
Call · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.247 UTC Last — Breakeven — Implied vol 12.3% Delta 0.904 ≈90% ITM Gamma 0.257 Theta -0.007 Vega 0.009 Open interest — OI effective date — Model this call Put · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $29.81
6	6	—	—	$0.00	$0.10	$0.10		—	$0.10	$0.30	-0.718	4.9%	—	—
Call · $30 Daily-bar session Aug 6, 2026 Quote as of 2026-09-04 19:59:01.218 UTC Last $0.10 Breakeven $30.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 3, 2026 Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.050 UTC Last — Breakeven — Implied vol 4.9% Delta -0.718 ≈72% ITM Gamma 1.279 Theta -0.002 Vega 0.018 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		$1.15	$1.10	$1.25	-0.932	13.9%	7	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.229 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 Sep 4, 2026 Quote as of 2026-09-04 19:55:01.051 UTC Last $1.15 Breakeven $29.85 Implied vol 13.9% Delta -0.932 ≈93% ITM Gamma 0.174 Theta -0.001 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		$2.11	$2.10	$2.25	-0.953	22.7%	108	—
Call · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.097 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 Sep 4, 2026 Quote as of 2026-09-04 19:55:01.049 UTC Last $2.11 Breakeven $29.89 Implied vol 22.7% Delta -0.953 ≈95% ITM Gamma 0.08 Theta -0.002 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$3.10	$3.30	-0.938	35.2%	—	—
Call · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.219 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 19:55:01.049 UTC Last — Breakeven — Implied vol 35.2% Delta -0.938 ≈94% ITM Gamma 0.064 Theta -0.007 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$4.10	$4.30	-0.947	43.4%	—	—
Call · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.051 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 19:55:01.050 UTC Last — Breakeven — Implied vol 43.4% Delta -0.947 ≈95% ITM Gamma 0.046 Theta -0.007 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$5.10	$5.30	-0.953	51.1%	—	—
Call · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.050 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol 51.1% Delta -0.953 ≈95% ITM Gamma 0.036 Theta -0.008 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$6.10	$6.30	-0.957	58.4%	—	—
Call · $36 Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.196 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $36 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.050 UTC Last — Breakeven — Implied vol 58.4% Delta -0.957 ≈96% ITM Gamma 0.029 Theta -0.009 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$7.10	$7.30	-0.96	65.4%	—	—
Call · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.185 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol 65.4% Delta -0.96 ≈96% ITM Gamma 0.024 Theta -0.009 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$8.10	$8.30	-0.963	72.1%	—	—
Call · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.050 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol 72.1% Delta -0.963 ≈96% ITM Gamma 0.021 Theta -0.01 Vega 0.004 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$9.10	$9.30	-0.965	78.6%	—	—
Call · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.049 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.051 UTC Last — Breakeven — Implied vol 78.6% Delta -0.965 ≈96% ITM Gamma 0.018 Theta -0.01 Vega 0.004 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 mixed daily-bar sessions · Aug 6, 2026–Sep 4, 2026; 35 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.