VUSB · VANGUARD ULTRA-SHORT BOND ETF ETF

Alerts for VUSB

$49.60 +0.02 (+0.04%) At close · Sep 4

Options Chain

Underlying $49.60 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 14 contracts · mixed daily-bar sessions · Sep 4, 2026; 11 unknown

Put / call OI

—

No open interest

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$52.00

$2.40 above spot

ATM implied vol

17.9%

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 Dec 18 104d Mar 19 195d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$0.00	$3.30	—		—	$0.00	$2.65	—	—	—	—
Call · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.938 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.764 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$4.40	—		—	$0.00	$2.65	—	—	—	—
Call · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.295 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 19:55:03.397 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$3.40	—		—	$0.00	$2.65	—	—	—	—
Call · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.346 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 19:55:01.098 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $49.60
—	—	—	—	$0.00	$2.65	—		$1.33	$0.35	$1.35	-0.573	17.9%	4	4
Call · $50 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.058 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:57:01.093 UTC Last $1.33 Breakeven $48.67 Implied vol 17.9% Delta -0.573 ≈57% ITM Gamma 0.235 Theta -0.022 Vega 0.037 Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.65	—		$2.33	$1.35	$2.35	-0.684	27.8%	4	3
Call · $51 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.162 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $51 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:55:04.003 UTC Last $2.33 Breakeven $48.67 Implied vol 27.8% Delta -0.684 ≈68% ITM Gamma 0.137 Theta -0.032 Vega 0.033 Open interest 3 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.65	—		$3.06	$2.35	$3.70	-0.707	41.7%	6	4
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.565 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 Sep 4, 2026 Quote as of 2026-09-04 19:55:04.725 UTC Last $3.06 Breakeven $48.94 Implied vol 41.7% Delta -0.707 ≈71% ITM Gamma 0.088 Theta -0.048 Vega 0.032 Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.65	—		—	$0.65	$6.10	-0.947	21.1%	—	—
Call · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.089 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 19:55:05.450 UTC Last — Breakeven — Implied vol 21.1% Delta -0.947 ≈95% ITM Gamma 0.055 Theta -0.003 Vega 0.01 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 · Sep 4, 2026; 11 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.