Constellation Energy stock today: CEG slips in thin year-end trade as Calpine deal stays in focus
NEW YORK, December 29, 2025, 23:50 ET — Market closed Constellation Energy Corp shares slipped 0.6% on Monday, ending at $358.33 as trading volumes thinned in the final week of the year. The dip matters because Constellation has become a proxy for the U.S. power-demand boom tied to artificial intelligence data centers, which are pushing grid planners and regulators to…