Charles River Laboratories International (CRL) Options Chain
NYSE: CRLHealth CareBiotechnology: Commercial Physical & Biological ResarchUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $301.79
- Put/call ratio (OI)
- 0.20
- Put/call ratio (volume)
- 0.08
- Expected move
- ±$125.47
- Open interest (C / P)
- 20 / 4
CRL options summary
The CRL options chain for the May 21, 2027 expiration lists 8 call and 4 put contracts, with 223 days until expiration. Open interest stands at 20 calls and 4 puts, a put/call ratio of 0.20, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $290.00 strike is 53.2%, which implies the market expects a move of about ±$125.47 (41.6%) in Charles River Laboratories International stock by expiration.
The most open interest sits at the $400.00 call (6 contracts) and the $150.00 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CRL options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 150.00 | 0.50 | 3.60 | 2.00 | |||||
| 125.10 | 133.70 | 137.40 | 175.00 | 2.50 | 5.40 | 5.40 | |||||
| 121.00 | 129.10 | 133.10 | 180.00 | — | — | — | |||||
| — | — | — | 185.00 | 3.60 | 7.00 | 7.00 | |||||
| 112.80 | 120.70 | 124.60 | 190.00 | 4.50 | 7.20 | 7.80 | |||||
| 108.80 | 116.90 | 120.50 | 195.00 | — | — | — | |||||
| 56.70 | 70.00 | 73.50 | 260.00 | — | — | — | |||||
| 49.20 | 53.00 | 56.70 | 290.00 | — | — | — | |||||
| 18.00 | 16.50 | 20.50 | 400.00 | — | — | — | |||||
| 19.10 | 15.00 | 18.30 | 410.00 | — | — | — | |||||
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 CRL put/call ratio?
For the May 21, 2027 expiration, the CRL put/call ratio based on open interest is 0.20 (4 puts vs 20 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.
What is CRL's implied volatility?
At-the-money implied volatility for CRL options expiring May 21, 2027 is about 53.2%, an annualized estimate of how much the market expects Charles River Laboratories International stock to move.
How many CRL option expiration dates are there?
CRL has 5 listed expiration dates, from Oct 16, 2026 to May 21, 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.