CRL options flow: unusual options activity in Charles River Laboratories International, Inc.

Updated 28 September 2026, 09:54 ET

Over the last week the tape recorded 20 unusual options prints in Charles River Laboratories International, Inc. (CRL), $1.2M of tracked premium, leaning firmly bearish. Bullish premium was $268K against $918K bearish; $802K went into calls and $383K into puts, a put call ratio of 0.48. The largest print was $280K of CRL 16 Oct 2026 $260 calls on 23 September 2026, executed at bid. The last session with prints, 25 September 2026, added 2 prints and $52K of premium. CRL closed at $292.84 on 25 September 2026, down 0.5%.

This week's unusual flow

Prints from 23 September 2026 to 25 September 2026, 3 sessions. Delayed tier: every print is shown twenty minutes after it executed, and the page is rebuilt after each session.

Net premium is bullish minus bearish premium. The put call ratio is put premium divided by call premium, weighted by money rather than by contract count. Sweeps is the share of prints executed across several exchanges at once. Read the guide: Reading the Pulse.

Largest prints of the week

Size above open interest means the trade opened a position larger than everything that existed in the contract the night before. Above ask and below bid are the most aggressive executions. Read the guide: Size versus open interest.

Where the money is aimed

The most premium, $1.2M, is aimed at the 16 Oct 2026 expiry.

A print in a contract expiring this week is a view about the next few days, often about a known event; a print months out is a different kind of statement. Read the guide: 0DTE options flow.

The last session, 25 September 2026

Every print in CRL with its full detail, the live tape, one tap filters and saved screeners: open CRL in Options Sentiment Screener.

Price

The live quote and the price chart sit beside the ticker's flow in the app: open CRL in Options Sentiment Screener.

Analysts

The most recent analyst targets on file, from 10 firms, have a median of $321, 9.6% above the last close. The last 90 days brought 1 upgrade and 1 downgrade.

Calls bought at a strike above the average target are a bet that the analysts are too cautious; puts far below the price in a name they like are protection or a strong disagreement. Read the guide: Reading one ticker's flow.

About Charles River Laboratories International, Inc.

Exchange

NYSE

Sector

Health Care

Industry

Business Services

Headquarters

Wilmington, Massachusetts

Website

criver.com

Charles River Laboratories International, Inc. provides drug discovery, non-clinical development, and safety testing services. The RMS segment produces and sells rodent research model strains and purpose-bred rats and mice for use by researchers. The DSA segment offers early and in vivo discovery services for the identification and validation of novel targets, chemical compounds, and antibodies. The Manufacturing segment provides in vitro testing of sterile and non-sterile pharmaceuticals and consumer products.

In the same sector

Flow pages for other Health Care names in the S&P 500:

LLY Eli Lilly & Co.JNJ Johnson & JohnsonABBV AbbVie Inc.MRK Merck & Co. Inc.UNH UnitedHealth Group Inc.TMO Thermo Fisher Scientific Inc.AMGN Amgen Inc.GILD Gilead Sciences, Inc.

Learn

• What unusual options activity means
• Reading one ticker's flow
• Sweeps, blocks and where a trade printed
• Size versus open interest
• Bullish or bearish, how a print's sentiment is inferred
• The conviction score and whale prints