Charles River Laboratories International Inc

CRLNYSE · USD
297.21USD+1.25 (+0.43%)
5910

Charles River Laboratories International Inc (CRL) Unusual Options Activity Today

CRL options volume power reached 20x on the previous trading day. The highest reading was on the $300 PUT expiring 2026-11-20.

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Checking CRL unusual options activity helps you spot when traders are making outsized bets on Charles River Laboratories International Inc before the broader market catches on. Charles River Laboratories International Inc's unusual options activity flags contracts trading at multiples of their average daily volume, often signaling that informed money is positioning ahead of a catalyst. Use our scanner to monitor CRL unusual options activity today and surface the prints that deserve a second look.

Unusual options flow typically refers to trades where volume vastly exceeds open interest at a given strike, or where total contract volume on a name spikes well above its norm. Watching CRL unusual options flow today can reveal large block trades, sweeps across exchanges, and aggressive directional bets. Tracking CRL unusual options volume across calls and puts helps you separate hedging activity from genuinely speculative positioning, and CRL unusual options flow data becomes especially valuable around earnings, product launches, and macro events.

Charles River Laboratories International, Inc., a non-clinical contract research organization, provides drug discovery, non-clinical development, and safety testing services in the United States, Europe, Canada, the Asia Pacific, and internationally. It operates through three segments: Research Models and Services (RMS), Discovery and Safety Assessment (DSA), and Manufacturing Solutions (Manufacturing). The RMS segment produces and sells rodent research model strains and purpose-bred rats and mice for use by researchers. This segment also provides a range of services to assist its clients in supporting the use of research models in research and screening non-clinical drug candidates, including research models, genetically engineered models and services, insourcing solutions, and research animal diagnostic services.

The DSA segment offers early and in vivo discovery services for the identification and validation of novel targets, chemical compounds, and antibodies through delivery of non-clinical drug and therapeutic candidates ready for safety assessment; and safety assessment services, such as toxicology, pathology, safety pharmacology, bioanalysis, drug metabolism, and pharmacokinetics services. The Manufacturing segment provides in vitro methods for conventional and rapid quality control testing of sterile and non-sterile pharmaceuticals and consumer products. This segment also offers specialized testing of biologics that are outsourced by pharmaceutical and biotechnology companies; and avian vaccine services that provide specific-pathogen-free (SPF) fertile chicken eggs, SPF chickens, and diagnostic products used to manufacture vaccines. The company also provides contract vivarium operation services to biopharmaceutical clients. Charles River Laboratories International, Inc. was founded in 1947 and is headquartered in Wilmington, Massachusetts.

Catalysts rarely arrive without a footprint, and CRL unusual options activity is often where that footprint shows up first. Our scanner tracks Charles River Laboratories International Inc's unusual options flow in real time, ranks prints by volume-to-open-interest, premium spent, and aggressor side, and separates real conviction from noise. Whether you're looking at CRL unusual options volume on the call side or chasing put sweeps, Charles River Laboratories International Inc's unusual options flow today is one click away, so put it on your radar before the headlines hit.

2026-10-16
Calls
180.00114.60118.40116.50103%1250.00%
290.0013.4015.2014.3043%11050321.87%
340.00—3.203.2062%31618.75%
300.008.2010.009.1042%41053.81%
310.005.306.605.9544%21571.27%
Puts
180.00—2.102.10154%11100.00%
185.00—0.300.30103%11100.00%
210.00—0.350.3580%1250.00%
230.00—0.200.2056%1156.67%
260.000.301.450.8843%3793.80%

As of September 29, 2026

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