Solar Stocks Surge: Market Cap Increases by 500 Billion Won in Just One Day

Shares of SolarEdge Technologies Inc. (NASDAQ: SEDG) closed at $59.90 on June 30, up 8.2% on the Nasdaq. Trading volume jumped to approximately 3.16 million shares, and the company’s market capitalization rose by about $300 million in a single day—bringing it to roughly $3.6 billion (₩5.6 trillion).

In its recently released Q1 2026 results, SolarEdge reported revenue of $310.5 million and a GAAP net loss of $57.4 million. However, its non-GAAP loss per share came in smaller than analysts had expected, fueling optimism that the company may have passed its trough. On May 31, CFO Asaf Alperovitch resigned, and a court approved a settlement of about $55 million in a class‐action lawsuit related to weak European demand and inventory issues, accelerating the resolution of that risk.

Headquartered in Israel, SolarEdge is a smart‐energy firm that supplies DC optimizers and inverter systems—critical components that control power at the individual solar‐panel level—and holds a significant share of the residential and commercial solar markets. Having struggled with slowing demand and inventory overhang severe enough to prompt global workforce reductions in 2024, it remains to be seen whether the recent share rally reflects a short‐term boost in anticipation of restructuring benefits and a recovery in results, or if it signals a genuine change in trend. Upcoming quarterly earnings will be key to clarifying the outlook.