MNTK · Montauk Renewables, Inc.

Track MNTK — free Ask ALVIS about MNTK

$1.90 +0.03 (+1.60%) At close · Jul 27

Market Cap

$270.45M

142.34M

Options Chain

15-min delayed Underlying $1.90 · at close Jul 27, 2026 Options Calculator

Positioning

Aug 21, 2026 · 24 days to expiry · 6 contracts

Put / call OI

0.00

Call-heavy positioning

Open interest

256

contracts outstanding

Volume

traded today

Max pain

$2.50

$0.60 above spot

ATM implied vol

228.2%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 24d Sep 18 52d Oct 16 80d Jan 15 171d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
Underlying $1.90
255	1	166.6%	0.339	$0.10		—	-0.499	289.8%	—	0
Call · $2.5 Last $0.10 Breakeven $2.60 Implied vol 166.6% Delta 0.339 ≈34% ITM Gamma 0.449 Theta -0.006 Vega 0.002 Open interest 255 Model this call Put · $2.5 In the money Last — Breakeven — Implied vol 289.8% Delta -0.499 ≈50% ITM Gamma 0.285 Theta -0.012 Vega 0.002 Open interest 0 Model this put
1	1	—	—	$0.20		—	-0.698	374.2%	—	0
Call · $5 Last $0.20 Breakeven $5.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $5 In the money Last — Breakeven — Implied vol 374.2% Delta -0.698 ≈70% ITM Gamma 0.189 Theta -0.013 Vega 0.002 Open interest 0 Model this put
0	—	—	—	—		—	-0.704	472.6%	—	0
Call · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $7.5 In the money Last — Breakeven — Implied vol 472.6% Delta -0.704 ≈70% ITM Gamma 0.149 Theta -0.016 Vega 0.001 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 1826600 CUSIP 61218C103 13F (30d) 14 filings 14 filers Visit website Investor relations