Shares of American Superconductor Corporation rallied 44.2% in the first half of 2026, according to data from S&P Global Market Intelligence. The company delivered two quarterly earnings beats, with March-quarter revenue up 29.6% and backlog 40% higher year over year. However, the bulk of the stock's gains appeared to coincide with a Microsoft blog post in February stating that high-temperature superconductors are becoming commercially viable for its data centers, and an April study in Nature Physics by Ohio State researchers suggesting room-temperature superconductor control. American Superconductor currently trades at roughly 35 times fiscal 2027 estimates, with most revenue still coming from conventional utility products, but the stock is seen as a high-upside bet on eventual superconductor commercialization.
American Superconductor CorporationTwo quarterly earnings beats and 29.6% revenue growth drove the stock rally.
Microsoft Corporation