Enphase Energy shares surge 21.13% after-hours on strong Q4 results, upbeat Q1 guidance, and analyst upgrades.

Enphase Energy surged 21.13% in after-hours trading following a strong Q4 earnings report and upbeat Q1 2026 revenue guidance that exceeded analyst expectations. The company reported $343.3 million in quarterly revenue, driven by heightened U.S. demand ahead of the Section 25D tax credit expiration, and raised its first-quarter forecast to $270–$300 million. Analysts at BMO Capital and RBC upgraded the stock to Market Perform and Outperform, respectively, citing improved visibility on revenue stabilization and potential sequential growth. Despite challenges like tariffs and a European market slowdown, the revised guidance and bullish analyst sentiment fueled the post-earnings rally.