NGVC · Natural Grocers by Vitamin Cottage, Inc.

Track NGVC — free

$28.13 +0.11 (+0.39%) At close · Aug 14

Market Cap

$648.28M

23.05M

Options Chain

Underlying $28.13 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 4 days to expiry · 10 contracts · mixed snapshot sessions · Jul 10, 2026–Aug 10, 2026; 3 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 4d Sep 18 32d Dec 18 123d Mar 19 214d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		$0.25	-0.167	231.6%	1	4
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $22.5 Snapshot session Jul 23, 2026 Last $0.25 Breakeven $22.25 Implied vol 231.6% Delta -0.167 ≈17% ITM Gamma 0.033 Theta -0.194 Vega 0.008 Open interest 4 Model this put
0	—	—	—	—		$0.46	-0.177	118.3%	4	5
Call · $25 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 Snapshot session Jul 10, 2026 Last $0.46 Breakeven $24.54 Implied vol 118.3% Delta -0.177 ≈18% ITM Gamma 0.068 Theta -0.102 Vega 0.008 Open interest 5 Model this put
Underlying $28.13
22	2	226.6%	0.456	$1.77		$2.70	-0.678	105.1%	1	12
Call · $30 Snapshot session Aug 10, 2026 Last $1.77 Breakeven $31.77 Implied vol 226.6% Delta 0.456 ≈46% ITM Gamma 0.054 Theta -0.3 Vega 0.013 Open interest 22 Model this call Put · $30 In the money Snapshot session Aug 10, 2026 Last $2.70 Breakeven $27.30 Implied vol 105.1% Delta -0.678 ≈68% ITM Gamma 0.105 Theta -0.125 Vega 0.012 Open interest 12 Model this put
12	1	356.3%	0.376	$0.05		$3.40	-0.852	166.5%	20	21
Call · $35 Snapshot session Aug 7, 2026 Last $0.05 Breakeven $35.05 Implied vol 356.3% Delta 0.376 ≈38% ITM Gamma 0.033 Theta -0.451 Vega 0.012 Open interest 12 Model this call Put · $35 In the money Snapshot session Jul 10, 2026 Last $3.40 Breakeven $31.60 Implied vol 166.5% Delta -0.852 ≈85% ITM Gamma 0.043 Theta -0.128 Vega 0.006 Open interest 21 Model this put
10	2	183.8%	0.061	$0.40		—	-0.884	228.1%	—	0
Call · $40 Snapshot session Jul 28, 2026 Last $0.40 Breakeven $40.40 Implied vol 183.8% Delta 0.061 ≈6% ITM Gamma 0.02 Theta -0.074 Vega 0.004 Open interest 10 Model this call Put · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 228.1% Delta -0.884 ≈88% ITM Gamma 0.026 Theta -0.146 Vega 0.007 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 10, 2026–Aug 10, 2026; 3 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 1547459 CUSIP 63888U108 13F (30d) 151 filings 150 filers Visit website Investor relations