Mirion Technologies (MIR) stock surged 5.20% in after-hours trading on Tuesday, following the release of its impressive third-quarter 2025 financial results. The radiation measurement and nuclear medicine company reported better-than-expected earnings and revenue growth, while also reaffirming its full-year guidance.

For the quarter ended September 30, Mirion reported adjusted earnings of $0.12 per share, surpassing analysts' expectations of $0.10 per share. Revenue rose 7.9% year-over-year to $223.1 million, slightly above the consensus estimate of $222.16 million. The company's GAAP net income for the quarter stood at $3.1 million, a significant improvement from a $14.0 million loss in the same period last year.

Investors were particularly encouraged by Mirion's strong performance in its nuclear power end-market and the company's reaffirmed 2025 guidance. The company expects total revenue growth of approximately 7.0% to 9.0% for the full year, with organic revenue growth of about 4.5% to 6.0%. Mirion also maintained its adjusted EBITDA forecast of $223 million to $233 million and raised the lower end of its adjusted free cash flow guidance to $100 million - $115 million. The positive outlook, coupled with recent acquisitions and new orders in the pipeline, has bolstered investor confidence in Mirion's growth trajectory.