VIOG · Vanguard S&P Mid-Cap 400 Growth ETF

Track VIOG — free

$147.05 -1.87 (-1.26%) At close · Aug 28

Rebalance outlook locked

Options Chain

Underlying $147.05 · at close Aug 28, 2026 Options Calculator

Positioning

Sep 18, 2026 · 18 days to expiry · 38 contracts · snapshot sessions unknown

Put / call OI

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snapshot sessions unknown

Open interest

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snapshot sessions unknown

Volume

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snapshot sessions unknown

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 18d Oct 16 46d Jan 15 137d Apr 16 228d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	21.9%	0.817	—		—	-0.164	20.1%	—	0
Call · $141 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21.9% Delta 0.817 ≈82% ITM Gamma 0.037 Theta -0.061 Vega 0.084 Open interest 0 Model this call Put · $141 Snapshot session Unknown Last — Breakeven — Implied vol 20.1% Delta -0.164 ≈16% ITM Gamma 0.037 Theta -0.043 Vega 0.083 Open interest 0 Model this put
0	—	21.4%	0.784	—		—	-0.194	19.1%	—	0
Call · $142 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21.4% Delta 0.784 ≈78% ITM Gamma 0.042 Theta -0.066 Vega 0.11 Open interest 0 Model this call Put · $142 Snapshot session Unknown Last — Breakeven — Implied vol 19.1% Delta -0.194 ≈19% ITM Gamma 0.044 Theta -0.045 Vega 0.084 Open interest 0 Model this put
0	—	21.5%	0.735	—		—	-0.224	17.7%	—	0
Call · $143 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21.5% Delta 0.735 ≈73% ITM Gamma 0.046 Theta -0.071 Vega 0.111 Open interest 0 Model this call Put · $143 Snapshot session Unknown Last — Breakeven — Implied vol 17.7% Delta -0.224 ≈22% ITM Gamma 0.052 Theta -0.046 Vega 0.11 Open interest 0 Model this put
0	—	19.8%	0.699	—		—	-0.272	16.7%	—	0
Call · $144 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.8% Delta 0.699 ≈70% ITM Gamma 0.054 Theta -0.07 Vega 0.112 Open interest 0 Model this call Put · $144 Snapshot session Unknown Last — Breakeven — Implied vol 16.7% Delta -0.272 ≈27% ITM Gamma 0.061 Theta -0.047 Vega 0.111 Open interest 0 Model this put
0	—	20.1%	0.643	—		—	-0.344	17.8%	—	0
Call · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol 20.1% Delta 0.643 ≈64% ITM Gamma 0.057 Theta -0.075 Vega 0.129 Open interest 0 Model this call Put · $145 Snapshot session Unknown Last — Breakeven — Implied vol 17.8% Delta -0.344 ≈34% ITM Gamma 0.064 Theta -0.056 Vega 0.129 Open interest 0 Model this put
0	—	19.5%	0.585	—		—	-0.407	17%	—	0
Call · $146 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.5% Delta 0.585 ≈59% ITM Gamma 0.061 Theta -0.075 Vega 0.13 Open interest 0 Model this call Put · $146 Snapshot session Unknown Last — Breakeven — Implied vol 17% Delta -0.407 ≈41% ITM Gamma 0.07 Theta -0.055 Vega 0.13 Open interest 0 Model this put
0	—	19.9%	0.525	—		—	-0.478	15.9%	—	0
Call · $147 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.9% Delta 0.525 ≈52% ITM Gamma 0.062 Theta -0.078 Vega 0.131 Open interest 0 Model this call Put · $147 Snapshot session Unknown Last — Breakeven — Implied vol 15.9% Delta -0.478 ≈48% ITM Gamma 0.078 Theta -0.053 Vega 0.131 Open interest 0 Model this put
Underlying $147.05
0	—	17.7%	0.458	—		—	-0.552	16.2%	—	0
Call · $148 Snapshot session Unknown Last — Breakeven — Implied vol 17.7% Delta 0.458 ≈46% ITM Gamma 0.068 Theta -0.068 Vega 0.132 Open interest 0 Model this call Put · $148 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.2% Delta -0.552 ≈55% ITM Gamma 0.076 Theta -0.052 Vega 0.132 Open interest 0 Model this put
0	—	18.2%	0.394	—		—	-0.643	14.5%	—	0
Call · $149 Snapshot session Unknown Last — Breakeven — Implied vol 18.2% Delta 0.394 ≈39% ITM Gamma 0.065 Theta -0.068 Vega 0.133 Open interest 0 Model this call Put · $149 In the money Snapshot session Unknown Last — Breakeven — Implied vol 14.5% Delta -0.643 ≈64% ITM Gamma 0.081 Theta -0.043 Vega 0.117 Open interest 0 Model this put
0	—	17.8%	0.331	—		—	-0.729	13.9%	—	0
Call · $150 Snapshot session Unknown Last — Breakeven — Implied vol 17.8% Delta 0.331 ≈33% ITM Gamma 0.062 Theta -0.062 Vega 0.118 Open interest 0 Model this call Put · $150 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.9% Delta -0.729 ≈73% ITM Gamma 0.077 Theta -0.035 Vega 0.116 Open interest 0 Model this put
0	—	17.4%	0.266	—		—	-0.85	11.6%	—	0
Call · $151 Snapshot session Unknown Last — Breakeven — Implied vol 17.4% Delta 0.266 ≈27% ITM Gamma 0.058 Theta -0.055 Vega 0.119 Open interest 0 Model this call Put · $151 In the money Snapshot session Unknown Last — Breakeven — Implied vol 11.6% Delta -0.85 ≈85% ITM Gamma 0.072 Theta -0.018 Vega 0.084 Open interest 0 Model this put
0	—	16.8%	0.207	—		—	-0.932	10.9%	—	0
Call · $152 Snapshot session Unknown Last — Breakeven — Implied vol 16.8% Delta 0.207 ≈21% ITM Gamma 0.052 Theta -0.046 Vega 0.092 Open interest 0 Model this call Put · $152 In the money Snapshot session Unknown Last — Breakeven — Implied vol 10.9% Delta -0.932 ≈93% ITM Gamma 0.056 Theta -0.008 Vega 0.045 Open interest 0 Model this put
0	—	17.5%	0.17	—		—	-0.988	10.5%	—	0
Call · $153 Snapshot session Unknown Last — Breakeven — Implied vol 17.5% Delta 0.17 ≈17% ITM Gamma 0.044 Theta -0.042 Vega 0.093 Open interest 0 Model this call Put · $153 In the money Snapshot session Unknown Last — Breakeven — Implied vol 10.5% Delta -0.988 ≈99% ITM Gamma 0.028 Theta 0 Vega 0 Open interest 0 Model this put
0	—	21.6%	0.186	—		—	—	—	—	0
Call · $154 Snapshot session Unknown Last — Breakeven — Implied vol 21.6% Delta 0.186 ≈19% ITM Gamma 0.038 Theta -0.054 Vega 0.092 Open interest 0 Model this call Put · $154 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	22.2%	0.157	—		—	—	—	—	0
Call · $155 Snapshot session Unknown Last — Breakeven — Implied vol 22.2% Delta 0.157 ≈16% ITM Gamma 0.033 Theta -0.05 Vega 0.093 Open interest 0 Model this call Put · $155 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	27.7%	0.186	—		—	-0.955	16.9%	—	0
Call · $156 Snapshot session Unknown Last — Breakeven — Implied vol 27.7% Delta 0.186 ≈19% ITM Gamma 0.029 Theta -0.069 Vega 0.092 Open interest 0 Model this call Put · $156 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.9% Delta -0.955 ≈95% ITM Gamma 0.026 Theta -0.01 Vega 0.028 Open interest 0 Model this put
0	—	27.2%	0.152	—		—	-0.958	18.3%	—	0
Call · $157 Snapshot session Unknown Last — Breakeven — Implied vol 27.2% Delta 0.152 ≈15% ITM Gamma 0.027 Theta -0.06 Vega 0.093 Open interest 0 Model this call Put · $157 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.3% Delta -0.958 ≈96% ITM Gamma 0.023 Theta -0.011 Vega 0.028 Open interest 0 Model this put
0	—	26.3%	0.123	—		—	-0.96	19.7%	—	0
Call · $158 Snapshot session Unknown Last — Breakeven — Implied vol 26.3% Delta 0.123 ≈12% ITM Gamma 0.023 Theta -0.049 Vega 0.062 Open interest 0 Model this call Put · $158 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.7% Delta -0.96 ≈96% ITM Gamma 0.02 Theta -0.011 Vega 0.028 Open interest 0 Model this put
0	—	32.9%	0.157	—		—	-0.963	21%	—	0
Call · $159 Snapshot session Unknown Last — Breakeven — Implied vol 32.9% Delta 0.157 ≈16% ITM Gamma 0.022 Theta -0.073 Vega 0.093 Open interest 0 Model this call Put · $159 In the money Snapshot session Unknown Last — Breakeven — Implied vol 21% Delta -0.963 ≈96% ITM Gamma 0.018 Theta -0.011 Vega 0.027 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 snapshot sessions 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 891190 CUSIP 921932869 13F (30d) 113 filings 111 filers