Fastly, Inc. Q3 2026 Earnings Recap

Fastly shares fell 26.9% after earnings, despite revenue above the company’s guidance range. The likely concern is the cautious outlook: Q4 revenue guidance implies growth will decelerate from Q3’s 20%, while full-year revenue guidance was narrowed.

Key Takeaways

• Q3 revenue was $190.2 million, up 20% year over year and above the high end of guidance.
• Q4 revenue guidance is $189 million to $195 million, representing 13% to 17% year-over-year growth—slower than Q3.
• Full-year 2026 revenue guidance was narrowed to $744 million to $750 million, or 17% to 18% growth.
• Adjusted Q3 operating income was $31.2 million, with a 16.4% operating margin; gross margin was 65.8%.
• Trailing 12-month net retention reached 119%, and 74% of large customers used at least two product suites.