Montauk Renewables (MNTK) Options Chain
NASDAQ: MNTKUtilitiesNatural Gas DistributionUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $2.53
- Put/call ratio (OI)
- 0.06
- Put/call ratio (volume)
- 0.09
- ATM implied volatility
- 104.7%
- Expected move
- ±$0.8768
- Open interest (C / P)
- 326 / 19
MNTK options summary
The MNTK options chain for the November 20, 2026 expiration lists 2 call and 1 put contracts, with 40 days until expiration. Open interest stands at 326 calls and 19 puts, a put/call ratio of 0.06, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 104.7%, which implies the market expects a move of about ±$0.8768 (34.7%) in Montauk Renewables stock by expiration.
The most open interest sits at the $5.00 call (316 contracts) and the $2.50 put (19 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
MNTK options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.40 | 0.10 | 0.75 | 2.50 | 0.05 | 0.50 | 0.20 | |||||
| 0.05 | 0.00 | 0.10 | 5.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the MNTK put/call ratio?
For the November 20, 2026 expiration, the MNTK put/call ratio based on open interest is 0.06 (19 puts vs 326 calls), and 0.09 based on today's volume. A ratio above 1 means more puts than calls.
What is MNTK's implied volatility?
At-the-money implied volatility for MNTK options expiring November 20, 2026 is about 104.7%, an annualized estimate of how much the market expects Montauk Renewables stock to move.
How many MNTK option expiration dates are there?
MNTK has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.