Why Enphase (ENPH) Stock Is Falling Today

By Radek Strnad | August 21, 2025, 1:45 PM

ENPH Cover Image

What Happened?

Shares of home energy technology company Enphase (NASDAQ:ENPH) fell 4.2% in the afternoon session after President Donald Trump announced his administration would not approve new solar or wind power projects, causing a sell-off in the renewable energy sector. The move came after President Donald Trump posted on his social media platform, Truth Social, that “We will not approve wind or farmer destroying Solar,” adding, “The days of stupidity are over in the USA!!!” This statement escalated his campaign against renewable energy development. The remarks prompted a sector-wide sell-off, pressuring solar and wind stocks broadly. Other renewable energy companies, such as Sunrun and First Solar, also saw their shares plummet following the announcement, reflecting investor concern over the future of green energy projects under his administration.

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What Is The Market Telling Us

Enphase’s shares are extremely volatile and have had 47 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 3 days ago when the stock gained 3.8% on the news that the U.S. Treasury Department issued favorable 'safe harbor' guidance on tax credits for clean energy projects, continuing a surge from the previous session. The stock continued a surge that began on Friday after the Treasury Department and IRS released new 'safe harbor' guidance clarifying which clean energy projects can qualify for tax credits. The new rules were viewed as less restrictive than investors had feared and were particularly favorable for residential solar projects, a key market for companies like Enphase. According to reports, the guidance largely preserved tax credits through 2030, clearing a cloud of uncertainty that had hung over the sector for more than a year and providing better visibility on future subsidies.

Enphase is down 52% since the beginning of the year, and at $34.23 per share, it is trading 72.3% below its 52-week high of $123.65 from August 2024. Investors who bought $1,000 worth of Enphase’s shares 5 years ago would now be looking at an investment worth $467.97.

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