Tempus AI's stock experienced a 24-hour plunge of 7.43% in post-market trading on Tuesday.
The decline occurred after the company reported first-quarter financial results that exceeded Wall Street expectations on both revenue and adjusted earnings per share. Tempus AI also raised its full-year 2026 revenue guidance. Analysts attribute the sharp sell-off to a classic "buy-the-rumor, sell-the-news" dynamic, where investors who had bid up the stock in anticipation of strong results chose to lock in profits once the positive earnings were confirmed.
The stock had surged significantly during the regular trading session on optimism surrounding the AI-driven healthcare sector ahead of the earnings release, making it susceptible to a profit-taking pullback after the report.