8x8 shares surge 20.48% premarket after Q4 revenue and earnings beat, strong AI adoption.

8x8 Inc. (NASDAQ: EGHT) surged 20.48% in premarket trading following the release of strong fourth-quarter 2025 financial results and a bullish revenue outlook. The company reported revenue of $185.1 million, a 3.4% year-over-year increase, and non-GAAP earnings of $0.12 per share, surpassing estimates of $0.09. Management attributed the performance to growing demand for AI-driven customer experience tools, with voice AI interactions rising 212% year-over-year. Additionally, 8x8 provided revenue guidance for the next quarter 3.2% above analyst expectations, signaling confidence in its growth trajectory. Concurrently, the company highlighted rapid adoption of AI-powered solutions in Q3 2026, including a 70% year-over-year increase in customer contracts for its Intelligent Customer Assistant tools, reinforcing its position in the AI communications market. These developments collectively drove the premarket rally.