BNDX · VANGUARD TOTAL INTERNATIONAL BOND INDEX FUND ETF

Alerts for BNDX

$47.45 +0.05 (+0.11%) At close · Sep 4

Options Chain

Underlying $47.45 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 18 contracts · mixed daily-bar sessions · Apr 28, 2026–Aug 25, 2026; 11 unknown

Put / call OI

0.01

Call-heavy positioning

Open interest

315

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$47.00

$0.45 below spot

ATM implied vol

19.6%

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
—	—	23.4%	0.962	$1.80	$5.30	—		—	$0.00	$1.65	—	—	—	—
Call · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.926 UTC Last — Breakeven — Implied vol 23.4% Delta 0.962 ≈96% ITM Gamma 0.04 Theta -0.011 Vega 0.008 Open interest — OI effective date — Model this call Put · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.638 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17.5%	0.952	$0.80	$4.30	—		—	$0.00	$1.65	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.203 UTC Last — Breakeven — Implied vol 17.5% Delta 0.952 ≈95% ITM Gamma 0.063 Theta -0.01 Vega 0.009 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.638 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	19.6%	0.815	$0.10	$3.30	—		$0.05	$0.00	$1.65	—	—	1	3
Call · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:27.469 UTC Last — Breakeven — Implied vol 19.6% Delta 0.815 ≈82% ITM Gamma 0.152 Theta -0.022 Vega 0.024 Open interest — OI effective date — Model this call Put · $46 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:55:05.638 UTC Last $0.05 Breakeven $45.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.25	—		$0.15	$0.00	$0.35	—	—	1	1
Call · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.570 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 Daily-bar session Aug 14, 2026 Quote as of 2026-09-04 19:55:05.636 UTC Last $0.15 Breakeven $46.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
Underlying $47.45
1	1	—	—	$0.00	$1.25	$0.15		$0.50	$0.00	$2.25	—	—	4	—
Call · $48 Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:55:05.638 UTC Last $0.15 Breakeven $48.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $48 In the money Daily-bar session Apr 28, 2026 Quote as of 2026-09-04 19:55:05.637 UTC Last $0.50 Breakeven $47.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
210	18	—	—	$0.00	$0.40	$0.05		—	$0.10	$3.30	-0.782	20.4%	—	—
Call · $49 Daily-bar session Jul 27, 2026 Quote as of 2026-09-04 19:55:05.636 UTC Last $0.05 Breakeven $49.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 210 OI effective date Sep 3, 2026 Model this call Put · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:27.167 UTC Last — Breakeven — Implied vol 20.4% Delta -0.782 ≈78% ITM Gamma 0.162 Theta -0.017 Vega 0.026 Open interest — OI effective date — Model this put
98	1	—	—	$0.00	$0.10	$0.05		—	$0.80	$4.30	-0.908	20%	—	—
Call · $50 Daily-bar session Aug 12, 2026 Quote as of 2026-09-04 19:55:05.639 UTC Last $0.05 Breakeven $50.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 98 OI effective date Sep 3, 2026 Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.637 UTC Last — Breakeven — Implied vol 20% Delta -0.908 ≈91% ITM Gamma 0.092 Theta -0.007 Vega 0.015 Open interest — OI effective date — Model this put
2	1	—	—	$0.00	$1.65	$0.05		—	$1.80	$5.30	-0.925	25.6%	—	—
Call · $51 Daily-bar session May 4, 2026 Quote as of 2026-09-04 19:55:05.638 UTC Last $0.05 Breakeven $51.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $51 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.637 UTC Last — Breakeven — Implied vol 25.6% Delta -0.925 ≈92% ITM Gamma 0.062 Theta -0.008 Vega 0.013 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.65	—		—	$2.80	$6.30	-0.935	31%	—	—
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.638 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 19:55:05.637 UTC Last — Breakeven — Implied vol 31% Delta -0.935 ≈93% ITM Gamma 0.046 Theta -0.009 Vega 0.011 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 · Apr 28, 2026–Aug 25, 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.