Prime Medicine (PRME) Options Chain
NASDAQ: PRMEHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 21, 2028
- Days to expiration
- 468
- Share price
- $3.99
- Put/call ratio (OI)
- 0.30
- Put/call ratio (volume)
- 1.45
- ATM implied volatility
- 101.7%
- Expected move
- ±$4.60
- Open interest (C / P)
- 10.97K / 3.27K
PRME options summary
The PRME options chain for the January 21, 2028 expiration lists 8 call and 8 put contracts, with 468 days until expiration. Open interest stands at 10,966 calls and 3,266 puts, a put/call ratio of 0.30, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $4.00 strike is 101.7%, which implies the market expects a move of about ±$4.60 (115.2%) in Prime Medicine stock by expiration.
The most open interest sits at the $5.00 call (3.36K contracts) and the $4.00 put (988 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PRME options chain · January 21, 2028
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.24 | 3.10 | 3.70 | 1.00 | 0.00 | 0.00 | 0.40 | |||||
| 2.55 | 2.20 | 3.20 | 2.00 | 0.45 | 0.85 | 0.65 | |||||
| 2.26 | 1.75 | 2.65 | 3.00 | 0.25 | 1.20 | 1.10 | |||||
| 1.40 | 1.35 | 2.35 | 4.00 | 1.55 | 1.70 | 1.83 | |||||
| 1.55 | 0.70 | 1.70 | 5.00 | 2.20 | 3.00 | 2.40 | |||||
| 1.25 | 0.65 | 1.65 | 7.00 | 3.60 | 4.40 | 4.28 | |||||
| 0.96 | 0.65 | 1.65 | 10.00 | 6.10 | 7.10 | 6.81 | |||||
| 0.97 | 0.20 | 1.20 | 12.00 | 8.40 | 9.40 | 9.19 | |||||
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 January 21, 2028 expiration, the PRME put/call ratio based on open interest is 0.30 (3,266 puts vs 10,966 calls), and 1.45 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 January 21, 2028 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.