NWN · Northwest Natural Holding Co

Track NWN — free Ask ALVIS about NWN

$50.06 -1.12 (-2.18%)

Market Cap

$2.11B

42.08M

Options Chain

15-min delayed Underlying $50.06 · today Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 22 contracts

Put / call OI

0.33

Call-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$50.00

$0.06 below spot

ATM implied vol

30.1%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Dec 18 141d Mar 19 232d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $25 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $30 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $30 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $35 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $35 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	64.9%	0.933	—		—	—	—	—	0
Call · $40 In the money Last — Breakeven — Implied vol 64.9% Delta 0.933 ≈93% ITM Gamma 0.017 Theta -0.022 Vega 0.019 Open interest 0 Model this call Put · $40 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	45.7%	0.84	—		—	-0.146	43.1%	—	0
Call · $45 In the money Last — Breakeven — Implied vol 45.7% Delta 0.84 ≈84% ITM Gamma 0.044 Theta -0.03 Vega 0.031 Open interest 0 Model this call Put · $45 Last — Breakeven — Implied vol 43.1% Delta -0.146 ≈15% ITM Gamma 0.044 Theta -0.028 Vega 0.031 Open interest 0 Model this put
12	3	20.6%	0.509	$1.05		$1.70	-0.48	39.6%	4	6
Call · $50 In the money Last $1.05 Breakeven $51.05 Implied vol 20.6% Delta 0.509 ≈51% ITM Gamma 0.162 Theta -0.023 Vega 0.049 Open interest 12 Model this call Put · $50 Last $1.70 Breakeven $48.30 Implied vol 39.6% Delta -0.48 ≈48% ITM Gamma 0.084 Theta -0.046 Vega 0.048 Open interest 6 Model this put
Underlying $50.06
6	5	36.8%	0.153	$0.05		—	-0.784	45.7%	—	0
Call · $55 Last $0.05 Breakeven $55.05 Implied vol 36.8% Delta 0.153 ≈15% ITM Gamma 0.053 Theta -0.024 Vega 0.034 Open interest 6 Model this call Put · $55 In the money Last — Breakeven — Implied vol 45.7% Delta -0.784 ≈78% ITM Gamma 0.052 Theta -0.038 Vega 0.034 Open interest 0 Model this put
0	—	—	—	—		—	-0.887	57.5%	—	0
Call · $60 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $60 In the money Last — Breakeven — Implied vol 57.5% Delta -0.887 ≈89% ITM Gamma 0.027 Theta -0.031 Vega 0.024 Open interest 0 Model this put
0	—	—	—	—		—	-0.899	77.8%	—	0
Call · $65 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $65 In the money Last — Breakeven — Implied vol 77.8% Delta -0.899 ≈90% ITM Gamma 0.018 Theta -0.038 Vega 0.024 Open interest 0 Model this put
0	—	—	—	—		—	-0.911	94.6%	—	0
Call · $70 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 In the money Last — Breakeven — Implied vol 94.6% Delta -0.911 ≈91% ITM Gamma 0.014 Theta -0.042 Vega 0.025 Open interest 0 Model this put
0	—	—	—	—		—	-0.913	111.6%	—	0
Call · $75 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 In the money Last — Breakeven — Implied vol 111.6% Delta -0.913 ≈91% ITM Gamma 0.012 Theta -0.049 Vega 0.015 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1733998 CUSIP 66765N105 13F (30d) 88 filings 84 filers Visit website Investor relations