Key Points Constellation began 2025 by announcing the $26.6 billion acquisition of Calpine. The acquisition will add a massive amount of natural gas and geothermal capacity to Constellation's leading nuclear fleet. Electricity demand projections continue to increase as Constellation inked another deal with a large AI hyperscaler. 10 stocks we like better than Constellation Energy › Shares of Constellation Energy (NASDAQ: CEG) rallied 57.9% in 2025, according to data from S&P Global Market Intell ...