Perimeter Solutions SA (PRM) Options Chain

NYSE: PRMIndustrialsMajor ChemicalsUSD

27.75+0.05 (+0.18%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $27.75
Put/call ratio (OI): 1.46
Put/call ratio (volume): 1.63
ATM implied volatility: 54.6%
Expected move: ±$6.54
Open interest (C / P): 381 / 557

PRM options summary

The PRM options chain for the December 18, 2026 expiration lists 10 call and 10 put contracts, with 68 days until expiration. Open interest stands at 381 calls and 557 puts, a put/call ratio of 1.46, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $30.00 strike is 54.6%, which implies the market expects a move of about ±$6.54 (23.6%) in Perimeter Solutions SA stock by expiration.

The most open interest sits at the $30.00 call (255 contracts) and the $30.00 put (417 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

PRM options chain · December 18, 2026

PRM calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	12.50	0.00	1.40	0.20	154.9%	2	4
0	2	—	9.20	0.00	0.00	15.00	0.00	1.45	0.20	126.6%	2	7
0	10	—	15.08	0.00	0.00	17.50	0.00	2.30	0.30	119.4%	1	4
0	—	142.7%	11.45	8.50	12.40	20.00	0.05	0.55	0.50	59.7%	1	9
0	9	—	6.14	0.00	0.00	22.50	0.20	1.00	0.25	54.2%	1	36
28	4	53.3%	3.00	2.70	5.40	25.00	0.50	2.40	2.00	57.0%	4	78
PRM $27.75
255	2	56.7%	1.22	0.20	1.85	30.00	3.20	3.90	4.00	52.5%	50	417
63	9	51.0%	0.55	0.10	0.95	35.00	3.60	6.50	4.00	—	2	2
0	1	25.0%	1.25	0.00	0.00	40.00	0.00	0.00	17.10	—	4	0
31	3	101.9%	0.40	0.00	2.15	45.00	0.00	0.00	13.68	—	—	0
4	1	85.3%	0.38	0.00	0.65	50.00	—	—	—	—	—	—

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 December 18, 2026 expiration, the PRM put/call ratio based on open interest is 1.46 (557 puts vs 381 calls), and 1.63 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 December 18, 2026 is about 54.6%, 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.