SolarEdge Technologies, an Israel-based solar inverter producer, has reported a return to non-GAAP operating profitability for the first time since the second quarter of 2023. However, its shares fell around 24% after the company issued weaker-than-expected guidance for the third quarter. The company's second-quarter 2026 revenue of US$346.2 million, up 20% year-on-year and 11.5% sequentially, was driven by stronger demand in Europe and growth in the US commercial and industrial (C&I) segment. Non-GAAP gross margin increased to 28.6%, compared with 13.1% in the same period last year, marking the company’s sixth consecutive quarter of year-on-year gross margin expansion. Non-GAAP operating income reached US$10.2 million, compared with a loss of US$48.3 million a year earlier, while non-GAAP net income was US$3.6 million. CEO Shuki Nir attributed the strong performance to strong demand in Europe and the US C&I segment, which more than offset industry-wide softness in US residential demand. However, the company's third-quarter outlook is less promising, with revenue expected to be US$310-340 million, below market expectations, due to continued uncertainty in US residential solar demand. This follows a 7.4% sequential revenue decline in the previous quarter, which did not benefit from significant one-off or pull-forward demand related to US policy changes. The company's financial health is improving, with positive free cash flow of US$3.1 million and a cash and investments portfolio, net of debt, of US$264.6 million as of June 30, 2026. However, the market's reaction to the weaker guidance highlights the challenges in the solar industry, particularly in the US residential sector, which is facing policy uncertainty and market headwinds. The company's ability to navigate these challenges and maintain its profitability will be crucial to its long-term success.