Shares of Merit Medical Systems (NASDAQ: MMSI) surged 5.67% in after-hours trading on Thursday, following the release of its impressive third-quarter 2025 financial results. The medical device company not only beat analyst expectations but also raised its full-year guidance, signaling strong momentum in its business.

Merit Medical reported Q3 revenue of $384.2 million, representing a 13% year-over-year increase and surpassing the analyst consensus of $371.9 million. The company's adjusted earnings per share (EPS) came in at $0.92, significantly beating the estimated $0.83. The strong performance was largely driven by the Cardiac Intervention segment, which saw a substantial 29.3% revenue growth.

In light of the robust Q3 results, Merit Medical raised its full-year 2025 guidance. The company now expects revenue between $1.502 billion and $1.515 billion, up from its previous forecast. Additionally, the non-GAAP EPS guidance was increased to a range of $3.66 to $3.79. This optimistic outlook, coupled with the company's improving profitability and strong market position, has likely fueled investor enthusiasm, leading to the significant after-hours stock price surge.