Shares of FuelCell Energy (NASDAQ:FCEL) are ripping higher in midday trading Wednesday, up 15% as hydrogen bulls rotate back into the most beaten-down name in the complex. Bloom Energy (NYSE:BE) stock is participating as well, gaining 9%.
Plug Power (NASDAQ:PLUG) shares, by contrast, are barely budging with a 1% uptick. That’s the story today: the hydrogen trade isn’t participating equally across all stocks in the fuel-cell sector today.
The split caps a volatile week. On Monday, May 18, this column flagged FCEL and PLUG getting hit hard in a hot-trade pullback. Today marks a reversal, but only for the names with a credible AI data center hook.
Mean Reversion Meets an AI Data Center Catalyst
FCEL stock is the day’s clear winner because it had the most room to bounce. The shares were heading in with a one-month gain of 139% and a year-to-date move of 137%, yet the five-year chart still shows a 92% drawdown.
The fundamental peg is FuelCell’s pivot to data center power. Q4 FY2025 revenue came in at $55.02M, beating estimates by 16%, and unrestricted cash jumped to $278.1M (per the company’s 8-K filing on sec.gov). FuelCell Energy CEO Jason Few stated, “Our strategy is deeply focused on the data center market where we see significant opportunities for our efficient, resilient power solutions.”
Retail is paying attention. One WallStreetBets thread this week framed FCEL stock as “one of 3 fuel cell players among BE, PLUG” riding the AI catalyst, a sign sentiment has flipped after the pullback.
Bloom Energy Is the Structural Leader
[bs_stock_chart symbol=”BE”]
Bloom Energy stock is up less today, but the one-year return tells the bigger story. BE shares are up 1,386% over the past year and 169% year to date. The market has already priced in much of the on-site power thesis.
The numbers back the narrative. Bloom Energy’s Q1 2026 revenue hit $751.05M, up 130% year over year, with non-GAAP EPS of $0.44 blowing past the $0.1285 consensus (see Bloom’s 8-K on sec.gov). Management raised FY26 revenue guidance to $3.4B to $3.8B on the back of a $5 billion Brookfield Asset Management (NYSE:BAM | BAM Price Prediction) AI infrastructure partnership.
Bloom Energy CEO KR Sridhar declared, “Bring-your-own-power has shifted from a slogan to a business necessity for AI hyperscalers and manufacturing facilities. This shift is secular and growing.” That’s the anchor Bloom Energy has and FuelCell is still trying to build.
Why Plug Power Is Sitting This One Out
[bs_stock_chart symbol=”PLUG”]
Plug Power’s quiet tape reflects end-market positioning rather than weak results. Q1 2026 revenue of $163.5 million grew 22% year over year, and Plug Power’s GAAP gross margin improved from -55% to -13%. The issue is end-market exposure.
Plug Power’s franchise leans on hydrogen production, electrolyzers, and material handling. Bloom and FuelCell pitch themselves directly to data center operators and hyperscalers, which is the narrative paying premiums today. Even insider activity skews defensive, with Plug’s April 1 Form 4s showing director acquisitions at just $2.26 per share.
PLUG stock did catch a retail bid earlier this month. WallStreetBets sentiment hit 88 on May 11 around a short-squeeze thread, but that euphoria faded. By May 17, the sentiment score had reverted to null.
What to Watch
The bull case for the AI data center fuel cell trade rests on durable hyperscaler power demand, with Bloom Energy’s Oracle (NYSE:ORCL) and Brookfield deployments providing real revenue validation. The bear case is unit economics. FuelCell still posted a Q4 net loss of $29.34M, and the 93% five-year drawdown shows how brutal these cycles can be.
The takeaway from today’s tape is simple. The market wants AI-data-center-adjacent fuel cell exposure specifically. That’s why FCEL stock is leading on mean reversion, BE shares are participating as the structural leader, and PLUG stock is drifting.
Investors should watch for fresh hyperscaler power purchase announcements, Bloom Energy’s next earnings update, and whether Plug Power can keep narrowing its losses toward its Q4 2026 EBITDAS-positive target. The divergence is the signal, for the time being at least.
Top Gaining Stocks
Top Losing Stocks