Why SolarEdge (SEDG) Shares Are Plunging Today

September 08, 2025 at 11:46 AM EDT

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What Happened?

Shares of solar power systems company SolarEdge (NASDAQ: SEDG) fell 5.8% in the morning session after key competitor Enphase Energy (ENPH) announced the U.S. launch of a new, technologically advanced microinverter for the commercial solar market.

Enphase is now accepting pre-orders for its IQ9N-3P™ Commercial Microinverter, the company's first to be powered by advanced gallium nitride (GaN) technology. This new product is designed for three-phase commercial solar projects and aims to simplify design, lower installation costs, and boost system efficiency.

The use of innovative GaN technology positions Enphase to potentially capture a larger share of the commercial solar market. This competitive development appears to be raising concerns among SolarEdge investors about its market position and future growth prospects in the face of heightened competition.

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What Is The Market Telling Us

SolarEdge’s shares are extremely volatile and have had 96 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 6 days ago when the stock dropped 7.3% as the major indices continued to retreat (Nasdaq -1.5%, S&P 500 -1.2%) amid profit-taking and renewed concerns about tariffs.

Investors reacted to a federal court ruling that most of President Trump's global tariffs were illegal, raising uncertainty over trade policy and the fiscal impact of potential refunds. Rising Treasury yields added to the pressure, with the 10-year climbing above 4.2% and the 30-year nearing 5%, intensifying worries about stretched equity valuations. September's historically weak track record for stocks further dampened sentiment, leaving traders cautious ahead of the jobs report later in the week and the Federal Reserve's upcoming rate decision.

SolarEdge is up 116% since the beginning of the year, and at $32.03 per share, it is trading close to its 52-week high of $34.42 from September 2025. Investors who bought $1,000 worth of SolarEdge’s shares 5 years ago would now be looking at an investment worth $169.43.

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Why SolarEdge (SEDG) Shares Are Plunging Today

What Happened?

What Is The Market Telling Us

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