Perimeter Solutions SA (PRM) Options Chain
NYSE: PRMIndustrialsMajor ChemicalsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $27.75
- Put/call ratio (OI)
- 1.71
- Put/call ratio (volume)
- 80.43
- Expected move
- ±$5.42
- Open interest (C / P)
- 347 / 593
PRM options summary
The PRM options chain for the November 20, 2026 expiration lists 2 call and 2 put contracts, with 40 days until expiration. Open interest stands at 347 calls and 593 puts, a put/call ratio of 1.71, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $30.00 strike is 59.0%, which implies the market expects a move of about ±$5.42 (19.5%) in Perimeter Solutions SA stock by expiration.
The most open interest sits at the $30.00 call (340 contracts) and the $25.00 put (559 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PRM options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 25.00 | 0.65 | 1.30 | 1.50 | |||||
| 1.53 | 0.75 | 1.65 | 30.00 | 2.40 | 5.00 | 3.46 | |||||
| 0.41 | 0.15 | 0.90 | 35.00 | — | — | — | |||||
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 PRM put/call ratio?
For the November 20, 2026 expiration, the PRM put/call ratio based on open interest is 1.71 (593 puts vs 347 calls), and 80.43 based on today's volume. A ratio above 1 means more puts than calls.
What is PRM's implied volatility?
At-the-money implied volatility for PRM options expiring November 20, 2026 is about 59.0%, an annualized estimate of how much the market expects Perimeter Solutions SA stock to move.
How many PRM option expiration dates are there?
PRM has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.