VTIP · VANGUARD SHORT-TERM INFLATION-PROTECTED SECURITIES INDEX FUND ETF

Alerts for VTIP

$49.73 +0.01 (+0.01%) At close · Sep 4

Options Chain

Underlying $49.73 · at close Sep 4, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 12 days to expiry · 38 contracts · mixed daily-bar sessions · Aug 11, 2026–Aug 25, 2026; 35 unknown

Put / call OI

0.15

Call-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$50.00

$0.27 above spot

ATM implied vol

31.7%

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
—	—	49.1%	0.987	$6.60	$11.00	—		—	$0.00	$0.45	—	—	—	—
Call · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.532 UTC Last — Breakeven — Implied vol 49.1% Delta 0.987 ≈99% ITM Gamma 0.008 Theta -0.01 Vega 0.003 Open interest — OI effective date — Model this call Put · $41 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.490 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	43.4%	0.986	$5.60	$10.00	—		—	$0.00	$0.45	—	—	—	—
Call · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:55.995 UTC Last — Breakeven — Implied vol 43.4% Delta 0.986 ≈99% ITM Gamma 0.009 Theta -0.01 Vega 0.003 Open interest — OI effective date — Model this call Put · $42 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.476 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	37.8%	0.985	$4.60	$9.00	—		—	$0.00	$2.10	—	—	—	—
Call · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.513 UTC Last — Breakeven — Implied vol 37.8% Delta 0.985 ≈99% ITM Gamma 0.011 Theta -0.01 Vega 0.003 Open interest — OI effective date — Model this call Put · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.462 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	32.3%	0.984	$3.60	$8.00	—		—	$0.00	$2.10	—	—	—	—
Call · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.506 UTC Last — Breakeven — Implied vol 32.3% Delta 0.984 ≈98% ITM Gamma 0.014 Theta -0.009 Vega 0.004 Open interest — OI effective date — Model this call Put · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.456 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	26.9%	0.982	$2.60	$7.00	—		—	$0.00	$0.45	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.505 UTC Last — Breakeven — Implied vol 26.9% Delta 0.982 ≈98% ITM Gamma 0.018 Theta -0.009 Vega 0.004 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.447 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$1.60	$5.00	—		—	$0.00	$0.45	—	—	—	—
Call · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.488 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $46 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.437 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	19.7%	0.949	$0.65	$5.00	—		—	$0.00	$0.45	—	—	—	—
Call · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.458 UTC Last — Breakeven — Implied vol 19.7% Delta 0.949 ≈95% ITM Gamma 0.059 Theta -0.012 Vega 0.01 Open interest — OI effective date — Model this call Put · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.426 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$4.00	—		—	$0.00	$2.10	—	—	—	—
Call · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.439 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.417 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.95	—		—	$0.00	$0.95	—	—	—	—
Call · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.413 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $49 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.407 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $49.73
12	11	—	—	$0.00	$0.05	$0.06		$0.32	$0.05	$2.45	-0.518	31.7%	3	2
Call · $50 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 15:29:40.347 UTC Last $0.06 Breakeven $50.06 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 3, 2026 Model this call Put · $50 In the money Daily-bar session Aug 11, 2026 Quote as of 2026-09-04 19:57:02.669 UTC Last $0.32 Breakeven $49.68 Implied vol 31.7% Delta -0.518 ≈52% ITM Gamma 0.14 Theta -0.045 Vega 0.036 Open interest 2 OI effective date Sep 3, 2026 Model this put
1	1	—	—	$0.00	$0.05	$0.05		—	$0.00	$3.50	—	—	—	—
Call · $51 Daily-bar session Aug 13, 2026 Quote as of 2026-09-04 19:49:58.568 UTC Last $0.05 Breakeven $51.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $51 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.370 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.55	—		—	$0.15	$4.50	-0.872	20.7%	—	—
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.423 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $52 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.450 UTC Last — Breakeven — Implied vol 20.7% Delta -0.872 ≈87% ITM Gamma 0.112 Theta -0.012 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$1.15	$5.00	—	—	—	—
Call · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.430 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $53 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.473 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$2.15	$6.50	-0.91	32.7%	—	—
Call · $54 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.443 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $54 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.498 UTC Last — Breakeven — Implied vol 32.7% Delta -0.91 ≈91% ITM Gamma 0.055 Theta -0.015 Vega 0.015 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$3.10	$6.80	—	—	—	—
Call · $55 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.453 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.503 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$5.20	$7.80	-0.873	54.4%	—	—
Call · $56 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.460 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $56 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.508 UTC Last — Breakeven — Implied vol 54.4% Delta -0.873 ≈87% ITM Gamma 0.042 Theta -0.038 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$5.10	$9.50	-0.943	46%	—	—
Call · $57 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.695 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $57 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.516 UTC Last — Breakeven — Implied vol 46% Delta -0.943 ≈94% ITM Gamma 0.028 Theta -0.014 Vega 0.01 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$6.10	$9.70	—	—	—	—
Call · $58 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.279 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $58 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.523 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.50	—		—	$7.10	$10.70	—	—	—	—
Call · $59 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.669 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $59 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.534 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 11, 2026–Aug 25, 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.