American Superconductor Corporation's stock surged 22.06% in post-market trading on Wednesday, following the release of its third-quarter fiscal 2025 financial results that significantly exceeded analyst expectations.

The power resiliency solutions provider reported quarterly adjusted earnings of $2.81 per share, dramatically surpassing the consensus estimate of $0.15. Revenue for the quarter reached $74.529 million, beating expectations of $69.175 million and representing a year-over-year increase of over 20%. The company's net income was $117.8 million, which includes a $113.1 million discrete tax benefit related to the release of a valuation allowance on a deferred tax asset.

Looking ahead, AMSC provided optimistic guidance for the fourth quarter, expecting revenue to exceed $80 million. The company attributed its strong performance to both organic growth and the recent acquisition of Comtrafo, which contributed to results in the final weeks of the quarter. With gross margin exceeding 30% and a 12-month backlog of over $250 million, the company's financial momentum appears robust heading into the next quarter.