Shares of Waystar Holding Corp (NASDAQ: WAY) jumped 6.00% in after-hours trading on Wednesday following the release of its first-quarter 2025 results and an upward revision of its full-year guidance. The healthcare payment software provider demonstrated robust growth and financial performance, surpassing market expectations.

Waystar reported quarterly earnings of $0.32 per share, meeting analyst consensus estimates and marking a significant 60% increase from the same period last year. The company's quarterly revenue reached $256.44 million, beating the analyst consensus estimate of $248.05 million by 3.38% and representing a 14.08% year-over-year growth. This marks Waystar's fourth consecutive quarter of double-digit revenue growth as a public company.

The strong quarter was underpinned by several key metrics, including a 15% year-over-year increase in clients contributing over $100,000 in last twelve months (LTM) revenue, totaling 1,244 clients. The company also maintained a healthy net revenue retention rate of 114% over the LTM ending March 31, 2025. In response to the solid performance, Waystar raised its full-year 2025 guidance, now expecting total revenue between $1.006 billion and $1.022 billion, and adjusted EBITDA between $406 million and $414 million. The raised outlook reflects the company's confidence in its growth trajectory and financial strength, likely contributing to the positive after-hours stock movement.