Key Highlights

● First Solar was one of the S&P 500's notable decliners.

● Bloom Energy rebounded on two fuel-cell contract wins.

● Plug Power reported Revenue of about $201 million.

● Plug's net cash usage was $28 million.

It would be easy to assume that all clean-energy stocks move together. Monday, November 9, 2026, proved otherwise. First Solar (NASDAQ:FSLR) was one of the S&P 500's notable decliners, according to news reports, even as fuel-cell maker Bloom Energy (NYSE:BE) soared.

The split came on a day when the S&P 500 jumped 173.08 points to 7,549.94 in its best session since April 8, and all 11 sectors finished higher.

Why solar slipped

Market data reported that First Solar slid during the morning and fell further around midday, landing on its list of S&P 500 losers. The outlet attributed the pressure to lower oil prices weighing on alternatives to fossil fuels.

The logic is straightforward. Brent Crude tumbled to $92.57, its lowest close since August, on hopes of a US-Iran peace deal. When traditional energy gets cheaper, the economic case for switching to alternatives looks less urgent in the eyes of some investors, and renewable stocks can lose some of their appeal.

Enphase Energy (NASDAQ:ENPH) had company news but no reported move. The solar microinverter maker said it has shipped more than 8 million microinverters and about 500 megawatt-hours of batteries from US facilities, and that it began building power modules in Texas for its IQ Solid-State Transformer aimed at AI data centers, according to market coverage.

Why fuel cells flew

Bloom Energy told a different story. Market data said the stock rebounded after two fuel-cell contract wins, while others linked the rally to lower energy costs easing worries about data-center build-outs.

That AI power trade was in full swing. Constellation Energy (NASDAQ:CEG) and NRG Energy (NYSE:NRG) both rallied after strong earnings, and GE Vernova (NYSE:GEV) climbed after landing a wind turbine order in Germany, according to market reports.

Plug Power (NASDAQ:PLUG), another hydrogen and fuel-cell company, rose to close at $1.50 on heavy Volume as traders positioned ahead of its results, according to market data. After the close, Plug reported third-quarter revenue of about $201 million, slightly ahead of estimates, and its net cash usage of $28 million as the company's lowest-ever quarterly burn. Shares were up in after-hours trading as of 5 p.m. ET.

Other power plays

Geothermal developer Fervo Energy (NASDAQ:FRVO) rallied after its first Cape Station unit in Utah entered commercial operation and it highlighted a 396-megawatt power deal with Google, according to news reports. Oklo (NYSE:OKLO), a nuclear startup, also jumped as power-for-AI stocks rebounded, though no company-specific news was found.

Tesla (NASDAQ:TSLA) added a solar twist: Elon Musk confirmed groundbreaking on a roughly $10.1 billion solar cell factory in Fort Bend County, Texas, targeted to operate by early 2029, according to market coverage.

The divergence shows that clean energy is not one trade. Investors are separating companies tied to near-term AI power Demand from those more exposed to oil and electricity-price swings.

Clean Energy Splits by Technology

Oil's direction will remain a key swing Factor for solar sentiment, and that hinges on Iran talks. For fuel-cell names, the test is whether AI data-center demand keeps converting into contracts. Plug Power has a symposium update on November 19. Broader clean-energy stocks are also sensitive to interest rates, so Tuesday's October Inflation report and the Fed's December 8-9 meeting matter. Policy is another watch item, as the new Democratic Congress weighs energy costs and data-center rules.