Talen Energy stock whipsaws after $3.45 billion gas-plant deal as PJM power rules shift
Talen Energy shares fell 11.3% Friday, reversing Thursday’s 11.8% gain after announcing a $3.45 billion deal for three gas plants. The drop followed White House pressure on PJM to hold an emergency auction as data center demand strains the grid. PJM proposed new limits on large power users. U.S. markets will close Monday for Martin Luther King Jr. Day.