Power Prospects for Data Centers: $200 Million Market Cap Vanishes Overnight

Solaris Energy Infrastructure Inc. (NYSE: SEI) closed down 5.29% at $57.25 on the New York Stock Exchange on the 26th, driving its market capitalization down to about $3.04 billion and erasing roughly $150 million in value in a single session. Trading volume exceeded 1.05 million shares as investors actively bought and sold the stock.

In its fourth-quarter 2025 results, released on February 25, the company reported full-year revenues of approximately $622 million and adjusted EBITDA of about $244 million—nearly double the previous year’s performance. Long-term power contracts with data centers and strategic joint ventures have enhanced its growth visibility for 2026–2027.

That said, legal risks surfaced in 2025 when U.S. law firms launched securities-fraud investigations and filed class-action lawsuits over disclosure issues related to the Mobile Energy Rentals acquisition, introducing added volatility.

Headquartered in Houston, Solaris Energy Infrastructure provides power-solution services—based on mobile natural-gas generation units and power control and distribution equipment—to data centers, energy infrastructure operators, and industrial customers.

Formerly known as Solaris Oilfield Infrastructure and focused on sand-logistics equipment for oilfields, the company rebranded in 2024. The Mobile Energy Rentals acquisition has become its core growth driver, repositioning Solaris as a key beneficiary of the booming data-center power-infrastructure market.