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Why Repligen (RGEN) Stock Is Trading Up Today

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What Happened?

Shares of biopharma manufacturing company Repligen Corporation (NASDAQ: RGEN) jumped 5.7% in the afternoon session after comments from a key Federal Reserve official bolstered hopes for an interest rate cut. New York Federal Reserve President John Williams stated he sees “room for a further adjustment” in the near term, sparking a significant market rally. Following his remarks, the probability of the central bank cutting rates at its December meeting jumped from 39% to over 73%, according to the CME FedWatch tool. This positive sentiment provided relief to markets amid concerns over high valuations, particularly in AI-related stocks.

The shares closed the day at $162.48, up 5.3% from previous close.

Is now the time to buy Repligen? Access our full analysis report here.

What Is The Market Telling Us

Repligen’s shares are very volatile and have had 25 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 10 days ago when the stock gained 5.7% on the news that the market experienced a sharp sector rotation, as investors fled growth-oriented technology stocks and piled into value-oriented names amid growing valuation concerns. This divergence was stark: the tech-heavy Nasdaq struggled, losing 0.2%, while the Dow rallied. This shift away from tech was triggered by a series of negative catalysts in the AI sector. AI cloud provider CoreWeave slid on disappointing guidance, while chip darling Nvidia pulled back after SoftBank sold its stake. This "hurt the AI trade," dragging down related names like Micron and Oracle. As capital left tech, it sought safety in "higher quality" defensive names. Health care giants like Merck, Amgen, and Johnson & Johnson saw significant buying, boosting the Dow.

Repligen is up 13.2% since the beginning of the year, and at $161.91 per share, it is trading close to its 52-week high of $174.24 from January 2025. Investors who bought $1,000 worth of Repligen’s shares 5 years ago would now be looking at an investment worth $871.07.

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