American Superconductor shares surge 21.48% after-hours after reporting $74.5M revenue beat, $2.81 EPS, and $80M+ Q4 guidance.

American Superconductor surged 21.48% in after-hours trading following a significant earnings beat, robust revenue growth, and analyst upgrades. The company reported Q3 fiscal 2025 revenue of $74.5 million (up 21% year-over-year) and non-GAAP net income of $2.81 per share, far exceeding forecasts. Strong performance in its grid business (85% of revenue) and the Comtrafo acquisition were key drivers. Analysts upgraded the stock to "Strong Buy" (Zacks) and revised price targets upward, citing improved margin visibility and growth assumptions. The stock’s post-earnings rally aligned with upgraded analyst expectations and a $61 fair value estimate, suggesting undervaluation despite a high P/E multiple. Guidance for Q4 revenue above $80 million further reinforced optimism about sustained momentum in data center, traditional energy, and utility markets.