Constellation Energy (CEG) repurchased $335 million of its own stock. Shares rose 10.3% over the last five trading sessions. This performance significantly outpaced the S&P 500.

Growth prospects depend on rising power demand from data centers. Constellation's nuclear assets are positioned to provide reliable, carbon-free energy to these facilities.

Mid-Atlantic grid operator PJM is currently developing new rules to manage this demand. Some customers are delaying contracts until these regulations are clarified. Management expects to submit a final framework to federal regulators in June.