Constellation Energy Corporation stock (CEG) jumps 4.5% — what investors watch next
15 February 2026
1 min read

Constellation Energy Corporation stock (CEG) jumps 4.5% — what investors watch next

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. (Investing.com)

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. (New York Stock Exchange)

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. (Constellation)

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. (SEC)

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. (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. (MarketWatch)

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. (nasdaq.com)

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