Prime Medicine (PRME) Options Chain

NASDAQ: PRMEHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

3.99+0.41 (+11.45%)

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

Expiration date

Expiration: Apr 16, 2027
Days to expiration: 187
Share price: $3.99
Put/call ratio (OI): 0.73
Put/call ratio (volume): 1.49
ATM implied volatility: 101.7%
Expected move: ±$2.90
Open interest (C / P): 562 / 411

PRME options summary

The PRME options chain for the April 16, 2027 expiration lists 7 call and 7 put contracts, with 187 days until expiration. Open interest stands at 562 calls and 411 puts, a put/call ratio of 0.73, which is fairly balanced between calls and puts. At-the-money implied volatility near the $4.00 strike is 101.7%, which implies the market expects a move of about ±$2.90 (72.8%) in Prime Medicine stock by expiration.

The most open interest sits at the $4.00 call (241 contracts) and the $4.00 put (131 contracts).

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

PRME options chain · April 16, 2027

PRME 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
49	42	158.6%	3.00	2.60	3.60	1.00	0.00	0.10	0.05	128.1%	—	5
44	110	116.8%	2.15	1.75	2.75	2.00	0.00	1.00	0.35	160.2%	—	4
1	1	94.5%	0.78	1.00	2.00	3.00	0.30	1.00	0.60	110.9%	22	43
PRME $3.99
241	40	103.3%	1.45	0.90	1.40	4.00	0.95	1.30	1.10	100.0%	10	131
77	1	116.4%	0.90	0.80	1.20	5.00	1.45	2.45	1.95	111.1%	75	76
148	2	113.1%	0.50	0.25	1.25	6.00	2.20	3.20	3.17	107.8%	74	86
2	1	118.4%	0.30	0.15	1.15	7.00	3.10	4.10	4.22	112.9%	112	66

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 PRME put/call ratio?

For the April 16, 2027 expiration, the PRME put/call ratio based on open interest is 0.73 (411 puts vs 562 calls), and 1.49 based on today's volume. A ratio above 1 means more puts than calls.

What is PRME's implied volatility?

At-the-money implied volatility for PRME options expiring April 16, 2027 is about 101.7%, an annualized estimate of how much the market expects Prime Medicine stock to move.

How many PRME option expiration dates are there?

PRME has 6 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.