Solaris Energy Infrastructure Increases Market Cap by $320 Million in One Day

Solaris Energy Infrastructure Inc. (NASDAQ: SEI) shares closed at $73 on the New York Stock Exchange on April 24, up 5.07% from the prior session. Approximately 1.51 million shares changed hands, lifting the company’s market capitalization to about $4.24 billion (roughly KRW 5.9 trillion). In a single day, market cap grew by around $227 million (about KRW 320 billion).

According to Defenseworld, Japanese asset manager Asset Management One continued institutional buying in the fourth quarter, acquiring roughly $2.1 million of SEI stock (defenseworld.net). Over the past year, SEI shares have surged nearly 250%, driven by expectations for power infrastructure demand at AI data centers—fueling debate over the stock’s valuation and leverage levels (finance.yahoo.com).

Solaris Energy Infrastructure provides mobile gas turbine power-generation equipment and related power and logistics solutions across the U.S., with demand from large tech companies’ AI data centers serving as its primary growth engine (financialreports.eu). In 2024–2025, the company faced heightened governance and compliance risks after being named in class-action securities-fraud lawsuits and investigations by various law firms over disclosure and profitability calculations related to its acquisition of a mobile energy rental business (globenewswire.com).