Showing results for CRL, 2026-11-20(m), calls & puts
CRL Option Chain FAQ
What is an option chain?
An option chain lists every call and put for a stock, with prices, volume, open interest, and Greeks for each strike and expiration date.
How many CRL option contracts are listed?
As of Nov 4, 2026, Charles River Laboratories International Inc (CRL) had 418 listed option contracts across 4 expiration dates, from Nov 20, 2026 to May 21, 2027.
When do CRL options expire?
Charles River Laboratories International had 4 expiration dates as of Nov 4, 2026, 0 of them weekly. The nearest was Nov 20, 2026 and the furthest May 21, 2027.
How actively are CRL options traded?
4.45K Charles River Laboratories International option contracts traded on Nov 4, 2026, and open interest was 14.29K contracts. Over the past 30 days, volume averaged 1.11K contracts per day. The CRL option volume chart shows volume by strike and expiration date.
Is CRL implied volatility high right now?
Charles River Laboratories International IV rank is 14, so its 30-day implied volatility of 52.4% is near the bottom of its one-year range. Over the past year it ranged from 36.2% on Dec 29, 2025 to 150.8% on May 15, 2026. See the CRL implied volatility history for a longer view.
What is Charles River Laboratories International Inc?
Charles River Laboratories was founded in 1947 and is a leading provider of drug discovery and development services.