NuScale Power Corporation's stock experienced a significant surge of 10.36% during pre-market trading on Tuesday. The company, which develops modular light water reactor nuclear power plants, was caught in a broad upward movement across the nuclear energy sector.

The rally appears to be linked to positive sector-specific news. Fellow advanced nuclear developer Oklo announced it had been selected by the U.S. Department of Energy for advanced discussions regarding the potential use of Cold War-era plutonium for nuclear reactor fuel. This development, signaling government recognition and a potential advancement for nuclear fuel recycling technology, generated investor optimism for the clean energy sector, lifting shares of related companies including NuScale Power.