Vanguard Takes a 5.23% Stake as Plug Power’s May 11 Earnings Test Nears

Plug Power shares swing as Vanguard takes a 5.23% stake, while a post-Bloom rally fades on overbought signals. Q1 earnings due May 11.

Plug Power is navigating a volatile stretch with two powerful forces pulling in opposite directions: a major institutional vote of confidence from the world’s largest asset manager, and a stock that just suffered a sharp reversal after riding a competitor’s coattails too far.

The hydrogen fuel cell company’s shares surged more than 12% on Wednesday, touching an intraday high of $3.41, after Bloom Energy reported a 130% year-over-year revenue jump. The message from the market was clear — rising electricity demand from AI data centers is fueling the clean-energy sector, and investors swept up the entire space in the rally. But the enthusiasm evaporated within 24 hours. By Thursday’s close, Plug Power had surrendered 8.9% of its value, settling at $3.11, or €2.67 in European trading.

The pullback looked like a textbook technical correction. The stock had already climbed nearly 70% since the start of 2025, and the relative strength index hit 70.76 on Wednesday — a classic overbought signal. On a 12-month basis, the shares are still up roughly 259%, though the year-to-date gain has cooled to about 41%.

Vanguard’s Big Bet

Amid the whipsaw price action, a significant ownership change has reshaped the shareholder register. Vanguard Capital Management now holds a 5.23% stake in Plug Power, equivalent to roughly 73 million shares, according to a mandatory filing with the U.S. Securities and Exchange Commission. The index-fund giant controls the entire position and holds voting rights for a portion of it.

The timing is notable. Plug Power is in the middle of a strategic overhaul under new CEO Jose Luis Crespo, who took the helm in early March. His mandate: strict cost discipline and a clear path to profitability. The company is pushing forward with “Project Quantum Leap,” an initiative designed to slash expenses and streamline operations. The overarching target remains unchanged — achieving positive operating EBITDA by the fourth quarter of 2026.

That goal is underpinned by a multibillion-dollar loan guarantee from the U.S. Department of Energy, secured in early 2025, which is funding the expansion of Plug Power’s green hydrogen production network. Analysts project revenue growth of roughly 13% this year to about $802 million, driven by the transition of several facilities from construction to operational mode.

The May 11 Showdown

All eyes are now on May 11, when Plug Power will report first-quarter results after the U.S. market close. The earnings release will serve as the first real test for Crespo’s leadership. Analysts expect revenue of approximately $142 million and a slightly narrower loss per share. The focus will be on margins from liquid hydrogen production and progress at the six DOE-backed production sites.

Wall Street remains deeply divided on the stock’s near-term trajectory. Clear Street rates Plug Power a strong buy with a $3.50 price target. Wells Fargo is neutral at $2.00, while Jefferies sees fair value at just $1.80.

On the technical side, the 50-day moving average sits at €2.09, well below the current price, confirming a positive intermediate trend. The next support level is $2.50, which coincides with that moving average. To the upside, the 52-week high of €3.51 remains the key resistance.

Until the May 11 numbers land, Plug Power’s stock is likely to drift on sector-wide moves and interest rate signals rather than company-specific catalysts. The Vanguard stake provides a floor of institutional credibility, but the real test — execution against the EBITDA target — is still months away.