President Donald Trump signed four executive orders to overhaul the Nuclear Regulatory Commission and hasten the process and deployment of new nuclear power reactors in the United States.

Constellation Energy, the largest nuclear operator in the U.S., rose by 3% by Friday afternoon, while shares of uranium mining firms Uranium Energy (23%), Energy Fuels (17%), Cameco Corp. (9.5%) and Centrus Energy (22%) also spiked in value.

The House narrowly passed its massive GOP tax and spending cuts package on Thursday, sending President Donald Trump’s “one big, beautiful bill” over to the Senate, where it will likely face many changes.