Constellation Energy (CEG) and Walgreens (WBA) are among today’s biggest winners. Both names are jumping around 13% in early trading. Constellation, which generates electricity from multiple sources,

America’s largest nuclear power plant operator has agreed to buy Texas-headquartered geothermal and natural gas producer Calpine in a $26.6 billion which includes both cash and stock components. The deal highlights the role that natural gas is likely to play in meeting fast-rising US electricity demand.

Constellation Energy Corp., an electricity provider whose stock has doubled over the last year on hopes it will help meet the voracious energy demand created by artificial-intelligence technologies, on Friday reached a $16.

Constellation Energy announces acquisition of Calpine, creating America's largest clean energy provider.

Constellation Energy is nearing a roughly $30 billion deal to acquire power producer Calpine, people familiar with the matter said on Wednesday, a move that would significantly expand Constellation's generation assets at a time of rising U.

Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at approximately $16.4 billion, joining together two of the country’s biggest power comp

Constellation Energy agreed to buy Calpine for $16.4 billion, combining two of the country’s largest electricity generators at a time when their product is in high demand from tech companies. Including the assumption of debt,