The company is betting that data-center owners will be hungry for all sorts of power—from nuclear to conventional.

Constellation is buying power natural gas and geothermal power provider Calpine in a cash-and-stock deal valued at ...

Shares of power producers fell, but not by as much as the broad market, as traders rotated into defensive sectors amid a flight from risk.

U.S. nuclear power provider Constellation Energy on Friday agreed to buy privately held natural gas and geothermal company ...

Constellation Energy’s deal to buy Calpine is being driven by fast-rising demand for electricity in part by the technology ...

When the December nonfarm payrolls report hit the tape, there was no question which way stocks would go at Friday's opening ...

Constellation Energy shares shot 25% higher today as the company confirmed its intentions to purchase Calpine. Calpine ...