New York, Feb 15, 2026, 15:33 EST — Market’s shut for the day.
- CEG finished Friday at $288.43, gaining 4.46% and adding to a strong rebound from early-February lows.
- Traders are eyeing a PJM grid plan, looking for signs of additional data-center power deals.
- A late-week SEC filing showed a major shareholder adjusting its stake in Constellation
Constellation Energy Corp (CEG) finished Friday up 4.46% at $288.43. That’s a jump of roughly 10% since its closing price on Feb. 6. Vistra gained about 5%, NRG Energy added more than 6%, both moving higher alongside Constellation.
Sunday brings a market holiday, and the New York Stock Exchange is dark Monday as well for Presidents Day, setting up a shortened four-day week.
The timing of the next surge in data-center power agreements remains uncertain. PJM Interconnection has put forward a proposal: big new customers would need to either supply their own power or agree to “connect-and-manage” protocols, possibly forcing them to dial back usage during grid stress. James West of Melius Research is betting on “a flurry of major data center-slash-power deals” from independent power producers—those IPPs selling into wholesale markets. But Bow River Capital’s Rick Pederson flagged “real world obstacles” like permitting and a backlog in interconnection. Reuters
Constellation is already leaning into that move. Its Calpine unit signed a 380-megawatt supply agreement with CyrusOne for a planned Texas data center right beside Calpine’s Freestone Energy Center, and there’s also an exclusive deal in place covering a second 380 MW phase. Constellation finalized its Calpine buyout in January.
Capital International Investors disclosed ownership of 17,170,795 shares of Constellation, representing 5.5% of the class as of Dec. 31, according to a Schedule 13G amendment signed Feb. 12. Schedule 13G forms indicate that the holders are not aiming for control.
Stocks barely budged Friday, with the S&P 500 inching up 0.05% and the Nasdaq slipping 0.22% after January’s U.S. consumer price data came in softer than forecast. Defensive utility shares topped S&P sectors for the day, according to Reuters.
CEG surged Friday, with about 5.4 million shares changing hands—well above normal trading volume. Even so, the stock is still trading nearly 30% under its 52-week peak of $412.70.
U.S. stock markets are set to reopen on Tuesday, Feb. 17, after the Presidents Day break, giving investors a new shot at gauging sentiment. Market watchers are eyeing potential new data-center supply deals and any movement on PJM’s proposal—specifically, whether it’s shifting out of discussion and toward formal approval.
