Solar Stocks Slide Led by Enphase Energy Amid Resumed Selling Pressure

Key Facts

1Enphase Energy shares dropped 5% on Friday, reversing part of a bounce seen earlier in the week.

2First Solar and Sunrun shares both fell 4% as the renewable energy sector faced broad selling.

3The Invesco Solar ETF (TAN) declined by 2%, reflecting general weakness across the sector.

Amid lingering concerns over borrowing costs weighing on the renewable energy sector, solar stocks faced significant selling pressure on Friday. According to reports, Enphase Energy shares dropped 5%, reversing a portion of the relief bounce seen earlier in the week. This decline represents a resumption of bearish sentiment after a brief rally, highlighting the technical rejection and continued challenges facing residential solar providers.

The sell-off was broad-based, with peer companies First Solar and Sunrun both declining by 4% per market data. The Invesco Solar ETF (TAN) also slid by 2%, reflecting systemic weakness across the renewable energy landscape. While Enphase Energy's year-to-date performance remains positive, Friday's move clipped those gains, whereas the decline further pressured stocks like Sunrun which have faced more prolonged slides.

At the close on September 17, 2026, ENPH stood at $36.02, while FSLR closed at $201.16 and RUN at $8.73. Investors are monitoring whether the Invesco Solar ETF (IVZ), which closed at $30.22 on the same date, can maintain its current levels to prevent further technical deterioration. Looking ahead, the market will watch for global macro catalysts including a speech by ECB President Christine Lagarde today, September 18, and upcoming Chinese industrial production data.