VFMF · Vanguard U.S. Multifactor ETF

Track VFMF — free

$187.48 +0.77 (+0.41%) At close · Aug 14

Options Chain

Underlying $187.48 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 50 contracts · mixed snapshot sessions · Jul 6, 2026–Aug 11, 2026; 48 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Oct 16 62d Jan 15 153d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $166 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $166 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $167 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $167 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.22	120.2%	—	0
Call · $168 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $168 Snapshot session Unknown Last — Breakeven — Implied vol 120.2% Delta -0.22 ≈22% ITM Gamma 0.01 Theta -0.694 Vega 0.081 Open interest 0 Model this put
0	—	—	—	—		—	-0.185	94.1%	—	0
Call · $169 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $169 Snapshot session Unknown Last — Breakeven — Implied vol 94.1% Delta -0.185 ≈19% ITM Gamma 0.011 Theta -0.488 Vega 0.062 Open interest 0 Model this put
0	—	—	—	—		—	-0.19	90.5%	—	0
Call · $170 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $170 Snapshot session Unknown Last — Breakeven — Implied vol 90.5% Delta -0.19 ≈19% ITM Gamma 0.012 Theta -0.477 Vega 0.063 Open interest 0 Model this put
0	—	—	—	—		—	-0.193	85.8%	—	0
Call · $171 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $171 Snapshot session Unknown Last — Breakeven — Implied vol 85.8% Delta -0.193 ≈19% ITM Gamma 0.013 Theta -0.456 Vega 0.063 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.197	81.9%	—	0
Call · $172 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.01 Vega 0 Open interest 0 Model this call Put · $172 Snapshot session Unknown Last — Breakeven — Implied vol 81.9% Delta -0.197 ≈20% ITM Gamma 0.014 Theta -0.443 Vega 0.063 Open interest 0 Model this put
0	—	—	—	—		—	-0.206	79.6%	—	0
Call · $173 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $173 Snapshot session Unknown Last — Breakeven — Implied vol 79.6% Delta -0.206 ≈21% ITM Gamma 0.015 Theta -0.443 Vega 0.063 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.223	80.2%	—	0
Call · $174 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $174 Snapshot session Unknown Last — Breakeven — Implied vol 80.2% Delta -0.223 ≈22% ITM Gamma 0.015 Theta -0.467 Vega 0.083 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.216	71.4%	—	0
Call · $175 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $175 Snapshot session Unknown Last — Breakeven — Implied vol 71.4% Delta -0.216 ≈22% ITM Gamma 0.017 Theta -0.41 Vega 0.083 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.224	67.4%	—	0
Call · $176 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $176 Snapshot session Unknown Last — Breakeven — Implied vol 67.4% Delta -0.224 ≈22% ITM Gamma 0.018 Theta -0.393 Vega 0.083 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.233	63.7%	—	0
Call · $177 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $177 Snapshot session Unknown Last — Breakeven — Implied vol 63.7% Delta -0.233 ≈23% ITM Gamma 0.019 Theta -0.378 Vega 0.084 Open interest 0 Model this put
0	—	—	—	—		$1.11	-0.237	58.3%	1	1
Call · $178 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $178 Snapshot session Aug 11, 2026 Last $1.11 Breakeven $176.89 Implied vol 58.3% Delta -0.237 ≈24% ITM Gamma 0.021 Theta -0.349 Vega 0.084 Open interest 1 Model this put
0	—	0.1%	1	—		—	-0.24	52.3%	—	0
Call · $179 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $179 Snapshot session Unknown Last — Breakeven — Implied vol 52.3% Delta -0.24 ≈24% ITM Gamma 0.024 Theta -0.314 Vega 0.084 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.261	50.8%	—	0
Call · $180 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 0 Model this call Put · $180 Snapshot session Unknown Last — Breakeven — Implied vol 50.8% Delta -0.261 ≈26% ITM Gamma 0.026 Theta -0.318 Vega 0.084 Open interest 0 Model this put
9	9	0.1%	1	$2.50		—	-0.293	52.3%	—	0
Call · $181 In the money Snapshot session Jul 6, 2026 Last $2.50 Breakeven $183.50 Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.011 Vega 0 Open interest 9 Model this call Put · $181 Snapshot session Unknown Last — Breakeven — Implied vol 52.3% Delta -0.293 ≈29% ITM Gamma 0.027 Theta -0.346 Vega 0.085 Open interest 0 Model this put
0	—	13.7%	0.951	—		—	-0.325	54.3%	—	0
Call · $182 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.7% Delta 0.951 ≈95% ITM Gamma 0.029 Theta -0.037 Vega 0.024 Open interest 0 Model this call Put · $182 Snapshot session Unknown Last — Breakeven — Implied vol 54.3% Delta -0.325 ≈33% ITM Gamma 0.027 Theta -0.38 Vega 0.085 Open interest 0 Model this put
0	—	14.4%	0.902	—		—	-0.317	41.1%	—	0
Call · $183 In the money Snapshot session Unknown Last — Breakeven — Implied vol 14.4% Delta 0.902 ≈90% ITM Gamma 0.048 Theta -0.058 Vega 0.042 Open interest 0 Model this call Put · $183 Snapshot session Unknown Last — Breakeven — Implied vol 41.1% Delta -0.317 ≈32% ITM Gamma 0.035 Theta -0.282 Vega 0.085 Open interest 0 Model this put
0	—	13.9%	0.852	—		—	-0.355	42%	—	0
Call · $184 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.9% Delta 0.852 ≈85% ITM Gamma 0.067 Theta -0.072 Vega 0.064 Open interest 0 Model this call Put · $184 Snapshot session Unknown Last — Breakeven — Implied vol 42% Delta -0.355 ≈35% ITM Gamma 0.036 Theta -0.303 Vega 0.098 Open interest 0 Model this put
0	—	—	—	—		—	-0.369	33%	—	0
Call · $185 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $185 Snapshot session Unknown Last — Breakeven — Implied vol 33% Delta -0.369 ≈37% ITM Gamma 0.047 Theta -0.239 Vega 0.098 Open interest 0 Model this put
0	—	13.1%	0.687	—		—	-0.414	31.6%	—	0
Call · $186 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.1% Delta 0.687 ≈69% ITM Gamma 0.11 Theta -0.098 Vega 0.085 Open interest 0 Model this call Put · $186 Snapshot session Unknown Last — Breakeven — Implied vol 31.6% Delta -0.414 ≈41% ITM Gamma 0.05 Theta -0.235 Vega 0.098 Open interest 0 Model this put
0	—	—	—	—		—	-0.459	25%	—	0
Call · $187 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $187 Snapshot session Unknown Last — Breakeven — Implied vol 25% Delta -0.459 ≈46% ITM Gamma 0.065 Theta -0.188 Vega 0.099 Open interest 0 Model this put
Underlying $187.48
0	—	—	—	—		—	-0.521	25.9%	—	0
Call · $188 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $188 In the money Snapshot session Unknown Last — Breakeven — Implied vol 25.9% Delta -0.521 ≈52% ITM Gamma 0.063 Theta -0.196 Vega 0.099 Open interest 0 Model this put
0	—	—	—	—		—	-0.575	27.9%	—	0
Call · $189 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $189 In the money Snapshot session Unknown Last — Breakeven — Implied vol 27.9% Delta -0.575 ≈58% ITM Gamma 0.057 Theta -0.206 Vega 0.099 Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $190 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $190 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 6, 2026–Aug 11, 2026; 48 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.

Key facts CIK 105563 CUSIP 921935607 13F (30d) 35 filings 35 filers Investor relations