WIP · State Street(R) SPDR(R) FTSE International Government Inflation-Protected Bond ETF ETF

Alerts for WIP

$39.73 -0.08 (-0.20%) At close · Sep 4

Options Chain

Underlying $39.73 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 38 contracts · mixed daily-bar sessions · Aug 24, 2026–Aug 25, 2026; 36 unknown

Put / call OI

2.00

Put-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$40.00

$0.27 above spot

ATM implied vol

15%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Jan 15 132d Apr 16 223d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$8.80	$10.70	—		—	$0.00	$0.85	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.558 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.566 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.80	$9.70	—		—	$0.00	$0.85	—	—	—	—
Call · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:13.081 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.068 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.80	$8.70	—		—	$0.00	$0.85	—	—	—	—
Call · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:12.337 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.297 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$5.80	$7.70	—		—	$0.00	$0.85	—	—	—	—
Call · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:11.181 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.045 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.80	$6.70	—		—	$0.00	$0.85	—	—	—	—
Call · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.011 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.295 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$3.80	$5.70	—		—	$0.00	$0.85	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:51.265 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.286 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.80	$4.70	—		—	$0.00	$0.85	—	—	—	—
Call · $36 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.937 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $36 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.677 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$1.80	$3.70	—		—	$0.00	$0.85	—	—	—	—
Call · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.667 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.105 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.80	$2.70	—		—	$0.00	$0.85	—	—	—	—
Call · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.444 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.151 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.65	—		—	$0.00	$0.90	—	—	—	—
Call · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.781 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.588 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $39.73
—	—	—	—	$0.00	$1.00	—		$0.70	$0.00	$1.25	—	—	2	2
Call · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.214 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:55:03.432 UTC Last $0.70 Breakeven $39.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$0.85	—		—	$0.35	$2.25	-0.854	15%	—	—
Call · $41 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.712 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.241 UTC Last — Breakeven — Implied vol 15% Delta -0.854 ≈85% ITM Gamma 0.204 Theta -0.006 Vega 0.017 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.85	$0.10		—	$1.40	$3.30	-0.861	25.9%	—	—
Call · $42 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:55:03.947 UTC Last $0.10 Breakeven $42.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.533 UTC Last — Breakeven — Implied vol 25.9% Delta -0.861 ≈86% ITM Gamma 0.114 Theta -0.013 Vega 0.017 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$2.40	$4.30	-0.886	33.4%	—	—
Call · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.421 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.361 UTC Last — Breakeven — Implied vol 33.4% Delta -0.886 ≈89% ITM Gamma 0.077 Theta -0.015 Vega 0.015 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$3.30	$5.30	-0.926	36.1%	—	—
Call · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.955 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.621 UTC Last — Breakeven — Implied vol 36.1% Delta -0.926 ≈93% ITM Gamma 0.052 Theta -0.011 Vega 0.011 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$4.30	$6.30	-0.934	42.2%	—	—
Call · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.382 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.621 UTC Last — Breakeven — Implied vol 42.2% Delta -0.934 ≈93% ITM Gamma 0.041 Theta -0.011 Vega 0.01 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$5.30	$7.30	-0.94	48.1%	—	—
Call · $46 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.922 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.621 UTC Last — Breakeven — Implied vol 48.1% Delta -0.94 ≈94% ITM Gamma 0.033 Theta -0.012 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$6.30	$8.30	-0.945	53.7%	—	—
Call · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.296 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.621 UTC Last — Breakeven — Implied vol 53.7% Delta -0.945 ≈94% ITM Gamma 0.028 Theta -0.013 Vega 0.008 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.85	—		—	$7.30	$9.30	-0.948	59.1%	—	—
Call · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.318 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:57.621 UTC Last — Breakeven — Implied vol 59.1% Delta -0.948 ≈95% ITM Gamma 0.024 Theta -0.014 Vega 0.008 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 24, 2026–Aug 25, 2026; 36 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.