Constellation Energy (CEG) Stocks are soaring on Monday after a U.S. regulator made a decision affecting nuclear energy producers. That overshadows the utility company’s impressive earnings report.

For the three months ending September 30Constellation’s operating revenue increased 7.2% year over year to $6.55 billion. Its earnings per share (EPS) increased by 28.6% compared to the same period last year, reaching $2.74.