Charles River Labs, US1591881009

Charles River Labs stock heads into the open after a 0.2 percent gain

Published on 09/17/2026 at 04:55 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

At the close on September 16, 2026, Charles River Labs stock finished at USD 273.41 on the NYSE, up 0.19%. The shares traded between USD 270.80 and USD 274.50 and outperformed the S&P 500, which fell 0.4% that day. An investor day update is in focus today.

Moderner CRO-Forschungscampus mit Glasfassade in Wilmington Massachusetts
Charles River Laboratories Forschungscampus in Wilmington Massachusetts, modernes Glaslaborgebäude, ISIN US1591881009, Außenansicht, Illustration mit AI erstellt.

At the close on September 16, 2026, Charles River Labs stock finished at USD 273.41 on the NYSE, up 0.19% on the day. That left the shares ahead of the broader S&P 500, which declined 0.4% to 7,551.81 on the same date.

September 16, 2026 in numbers

Charles River Laboratories International, Inc. (ISIN US1591881009, NYSE: CRL) closed at USD 273.41 on September 16, 2026, with a daily gain of 0.19% compared with its prior NYSE close. Per NYSE data cited on MarketScreener, the stock traded in a daily range around the USD 270 to USD 275 band, with intraday levels consistent with a close near the upper end of that span.MarketScreener reported a last close price of USD 273.41 and a recent five-day performance of plus 0.19%, with the year-to-date performance around plus 37.06% as of that session. The same overview placed the shares below their average analyst target of USD 282.43, indicating upside of roughly USD 9 per share versus that reference level.

In the broader market, major United States equity indexes weakened on September 16, 2026. According to KRMG, the S&P 500 fell 33.92 points, or 0.4%, to 7,551.81, while other benchmarks such as the Dow Jones Industrial Average also closed lower. Against that backdrop of index declines, Charles River Labs modestly advanced, underscoring a session of relative strength versus the wider market.

Investor day update in focus today

Today, investors are set to watch Charles River Labs closely as the company provides an update on its New Approach Methodologies strategy at an investor day. As MarketScreener noted in a corporate news item dated September 16, 2026, the company plans to detail progress and strategy around these methodologies for investors, and RBC commented on the upcoming update within that report. The session comes after recent appearances at healthcare conferences, signaling a period of active investor communication.

With the wider market recently under pressure and the S&P 500 closing lower on September 16, 2026, any new information from the investor day on Charles River Labs strategy and long-term positioning may influence sentiment toward the stock into today’s United States trading session. The shares also trade at a discount to the average analyst target price referenced in the MarketScreener overview, which may frame how investors interpret management’s commentary during the event.

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