VFMF · VANGUARD U.S. MULTIFACTOR ETF ETF

Alerts for VFMF

$187.57 -0.45 (-0.24%) At close · Sep 4

Options Chain

Underlying $187.57 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 42 contracts · daily-bar sessions unknown

Put / call OI

—

open-interest date unavailable

Open interest

—

open-interest date unavailable

Volume

—

daily-bar sessions unknown

ATM implied vol

13.5%

market's expected move

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 12d Oct 16 40d Jan 15 131d Apr 16 222d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$13.30	$20.20	—		—	$0.00	$2.95	—	—	—	—
Call · $171 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.029 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $171 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.715 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$12.60	$18.70	—		—	$0.00	$2.95	—	—	—	—
Call · $172 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.777 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $172 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.538 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$11.50	$17.70	—		—	$0.00	$2.95	—	—	—	—
Call · $173 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.569 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $173 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.359 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.50	$16.70	—		—	$0.00	$2.95	—	—	—	—
Call · $174 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.418 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $174 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.987 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$9.70	$15.70	—		—	$0.00	$3.00	—	—	—	—
Call · $175 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.121 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $175 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.862 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$8.70	$14.60	—		—	$0.00	$3.00	—	—	—	—
Call · $176 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.967 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $176 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.802 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.60	$13.70	—		—	$0.00	$3.10	—	—	—	—
Call · $177 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.700 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $177 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.603 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	12.7%	0.991	$6.80	$12.80	—		—	$0.00	$3.10	—	—	—	—
Call · $178 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.592 UTC Last — Breakeven — Implied vol 12.7% Delta 0.991 ≈99% ITM Gamma 0.006 Theta -0.022 Vega 0.009 Open interest — OI effective date — Model this call Put · $178 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.383 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	14.4%	0.968	$5.90	$11.80	—		—	$0.00	$3.10	—	—	—	—
Call · $179 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.427 UTC Last — Breakeven — Implied vol 14.4% Delta 0.968 ≈97% ITM Gamma 0.015 Theta -0.032 Vega 0.025 Open interest — OI effective date — Model this call Put · $179 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.396 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17.8%	0.908	$4.80	$11.30	—		—	$0.00	$3.20	—	—	—	—
Call · $180 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.372 UTC Last — Breakeven — Implied vol 17.8% Delta 0.908 ≈91% ITM Gamma 0.027 Theta -0.058 Vega 0.056 Open interest — OI effective date — Model this call Put · $180 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 put
—	—	13%	0.942	$3.90	$9.90	—		—	$0.00	$3.30	—	—	—	—
Call · $181 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.085 UTC Last — Breakeven — Implied vol 13% Delta 0.942 ≈94% ITM Gamma 0.026 Theta -0.038 Vega 0.039 Open interest — OI effective date — Model this call Put · $181 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.887 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17%	0.849	$3.10	$9.40	—		—	$0.00	$3.40	—	—	—	—
Call · $182 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.778 UTC Last — Breakeven — Implied vol 17% Delta 0.849 ≈85% ITM Gamma 0.041 Theta -0.072 Vega 0.08 Open interest — OI effective date — Model this call Put · $182 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.469 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	14.1%	0.848	$2.25	$8.10	—		—	$0.00	$3.40	—	—	—	—
Call · $183 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.398 UTC Last — Breakeven — Implied vol 14.1% Delta 0.848 ≈85% ITM Gamma 0.049 Theta -0.062 Vega 0.08 Open interest — OI effective date — Model this call Put · $183 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.490 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	13.4%	0.803	$1.40	$7.20	—		—	$0.00	$3.60	—	—	—	—
Call · $184 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.267 UTC Last — Breakeven — Implied vol 13.4% Delta 0.803 ≈80% ITM Gamma 0.061 Theta -0.068 Vega 0.094 Open interest — OI effective date — Model this call Put · $184 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.336 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	13.3%	0.737	$0.65	$6.40	—		—	$0.00	$3.90	—	—	—	—
Call · $185 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.791 UTC Last — Breakeven — Implied vol 13.3% Delta 0.737 ≈74% ITM Gamma 0.072 Theta -0.075 Vega 0.111 Open interest — OI effective date — Model this call Put · $185 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.104 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$5.60	—		—	$0.00	$4.00	—	—	—	—
Call · $186 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.420 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $186 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.947 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$5.10	—		—	$0.00	$4.30	—	—	—	—
Call · $187 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 · $187 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.587 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $187.57
—	—	—	—	$0.00	$4.50	—		—	$0.00	$4.70	—	—	—	—
Call · $188 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.432 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $188 In the money 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 put
—	—	—	—	$0.00	$4.00	—		—	$0.00	$5.30	—	—	—	—
Call · $189 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.878 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $189 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.174 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$3.60	—		—	$0.20	$6.10	-0.678	13.5%	—	—
Call · $190 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.019 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $190 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.730 UTC Last — Breakeven — Implied vol 13.5% Delta -0.678 ≈68% ITM Gamma 0.078 Theta -0.056 Vega 0.122 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$3.30	—		—	$0.75	$6.90	-0.758	13.1%	—	—
Call · $191 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.241 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $191 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:49:58.738 UTC Last — Breakeven — Implied vol 13.1% Delta -0.758 ≈76% ITM Gamma 0.07 Theta -0.043 Vega 0.106 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 daily-bar sessions 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.