Five9 (NASDAQ: FIVN) shares surged 5.15% in after-hours trading on Thursday, following the release of its impressive third-quarter 2025 financial results, announcement of a share repurchase program, and raised full-year guidance.

The cloud software provider reported Q3 revenue of $285.8 million, slightly beating analysts' expectations of $285 million. This represents an 8.2% increase from the same period last year. Five9's adjusted gross margin improved to 62.8%, up from 61.8% in the previous year, while adjusted EBITDA reached $71.7 million, or 25.1% of revenue, significantly higher than the $52.4 million, or 19.8% of revenue, reported in Q3 2024.

Investors were particularly encouraged by Five9's strong performance in its Enterprise AI segment, which saw revenue growth of 41% year-over-year. Additionally, the company announced a $150 million share repurchase program, signaling confidence in its financial position and commitment to delivering shareholder value. Five9 also raised its full-year 2025 earnings per share guidance to $2.92-$2.96, up from the previous range of $2.86-$2.90, surpassing the consensus estimate of $2.89. The company narrowed its full-year revenue outlook to $1.1435-$1.1495 billion, demonstrating continued growth expectations despite economic uncertainties.