U.S. Utilities Surge 5%, Market Cap Increases by Nearly $5 Billion in One Day

Sempra (SEMPRA: SRE) shares closed at $94.50 on the New York Stock Exchange on the 3rd, up 5.53%. The company’s market capitalization rose to about $61.7 billion (approximately KRW 83 trillion), gaining roughly $3.6 billion (around KRW 4.9 trillion) on the day’s price surge. Trading volume totaled 2,535,490 shares.

Recently, activist fund Voss Capital urged Sempra to spin off Oncor, its Texas electricity transmission and distribution subsidiary, arguing that Oncor’s standalone value could reach as much as $78 billion (about KRW 105 trillion). This proposal has fueled expectations for a reassessment of Sempra’s hidden equity value.

Sempra is a major energy holding company operating electricity and natural gas infrastructure across North America, including the United States and Mexico. Its portfolio includes Southern California Gas Company, San Diego Gas & Electric, Oncor in Texas, and Sempra Infrastructure. The company has outlined a capital expenditure plan of roughly $65 billion (around KRW 87 trillion) over the next five years through 2026, targeting growth in regulated utilities alongside steady dividend expansion.