VWOB · VANGUARD EMERGING MARKETS GOVERNMENT BOND INDEX FUND ETF

Alerts for VWOB

$65.67 +0.05 (+0.08%) At close · Sep 4

Options Chain

Underlying $65.67 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 38 contracts · mixed daily-bar sessions · Aug 21, 2026; 35 unknown

Put / call OI

—

No open interest

Open interest

4,567

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$67.00

$1.33 above spot

ATM implied vol

22.8%

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 Nov 20 76d Feb 19 167d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$5.20	$10.00	—		—	$0.00	$2.45	—	—	—	—
Call · $58 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:47.152 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $58 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.074 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.20	$9.00	—		—	$0.00	$2.45	—	—	—	—
Call · $59 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:38.816 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $59 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.028 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$3.20	$8.00	—		—	$0.00	$2.45	—	—	—	—
Call · $60 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:41.359 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.943 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.20	$7.00	—		—	$0.00	$2.45	—	—	—	—
Call · $61 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:19.181 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $61 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.869 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$1.30	$6.00	—		—	$0.00	$2.45	—	—	—	—
Call · $62 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:37.540 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $62 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.829 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	14.8%	0.94	$0.60	$5.00	—		—	$0.00	$0.85	—	—	—	—
Call · $63 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:40.451 UTC Last — Breakeven — Implied vol 14.8% Delta 0.94 ≈94% ITM Gamma 0.066 Theta -0.014 Vega 0.015 Open interest — OI effective date — Model this call Put · $63 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.766 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	22.8%	0.743	$0.10	$4.30	—		—	$0.00	$2.45	—	—	—	—
Call · $64 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:53.868 UTC Last — Breakeven — Implied vol 22.8% Delta 0.743 ≈74% ITM Gamma 0.114 Theta -0.04 Vega 0.04 Open interest — OI effective date — Model this call Put · $64 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.723 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	2	—	—	$0.00	$3.30	$1.00		$0.05	$0.00	$2.50	—	—	4.5k	4.6k
Call · $65 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:58.296 UTC Last $1.00 Breakeven $66.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $65 Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:32.657 UTC Last $0.05 Breakeven $64.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4.6k OI effective date Sep 3, 2026 Model this put
Underlying $65.67
—	—	—	—	$0.00	$2.55	—		—	$0.00	$2.90	—	—	—	—
Call · $66 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.649 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $66 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.654 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		$2.05	$0.00	$3.90	—	—	1	1
Call · $67 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.677 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $67 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:32.736 UTC Last $2.05 Breakeven $64.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$0.00	$2.25	—		—	$0.20	$5.00	-0.776	22.8%	—	—
Call · $68 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.753 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $68 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.693 UTC Last — Breakeven — Implied vol 22.8% Delta -0.776 ≈78% ITM Gamma 0.106 Theta -0.027 Vega 0.037 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$1.00	$6.00	-0.839	25.2%	—	—
Call · $69 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.809 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $69 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:47.909 UTC Last — Breakeven — Implied vol 25.2% Delta -0.839 ≈84% ITM Gamma 0.078 Theta -0.024 Vega 0.03 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$2.00	$6.90	-0.875	28.1%	—	—
Call · $70 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.856 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $70 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:20.005 UTC Last — Breakeven — Implied vol 28.1% Delta -0.875 ≈88% ITM Gamma 0.059 Theta -0.021 Vega 0.026 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$3.00	$7.90	-0.889	32.6%	—	—
Call · $71 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.929 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $71 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:59.449 UTC Last — Breakeven — Implied vol 32.6% Delta -0.889 ≈89% ITM Gamma 0.047 Theta -0.023 Vega 0.024 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$4.00	$8.90	-0.898	36.8%	—	—
Call · $72 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.974 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $72 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:40.380 UTC Last — Breakeven — Implied vol 36.8% Delta -0.898 ≈90% ITM Gamma 0.039 Theta -0.025 Vega 0.022 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$5.00	$9.90	-0.906	40.8%	—	—
Call · $73 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.062 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $73 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:07.768 UTC Last — Breakeven — Implied vol 40.8% Delta -0.906 ≈91% ITM Gamma 0.033 Theta -0.026 Vega 0.021 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$6.00	$10.90	-0.913	44.8%	—	—
Call · $74 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.137 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $74 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:46.848 UTC Last — Breakeven — Implied vol 44.8% Delta -0.913 ≈91% ITM Gamma 0.029 Theta -0.027 Vega 0.02 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$7.00	$11.90	-0.918	48.6%	—	—
Call · $75 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.217 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $75 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.297 UTC Last — Breakeven — Implied vol 48.6% Delta -0.918 ≈92% ITM Gamma 0.025 Theta -0.028 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.45	—		—	$8.00	$12.90	-0.922	52.2%	—	—
Call · $76 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.294 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $76 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:43.027 UTC Last — Breakeven — Implied vol 52.2% Delta -0.922 ≈92% ITM Gamma 0.023 Theta -0.029 Vega 0.018 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 21, 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.