Oklo Inc. shares rose 1.72% to $45.03 in Wednesday premarket trading, according to Benzinga Pro data, as investors weighed escalating U.S.-Canada trade tensions and their potential impact on uranium supplies. Ontario Premier Doug Ford cautioned that Canada could restrict U.S. shipments of high-grade nickel and refined uranium from Ontario, home to Cameco's Blind River refinery, the world's largest commercial uranium processing hub. The threat of cross-border supply constraints pushed uranium spot prices to a seven-month high and supported U.S.-based nuclear technology developers. Oklo is also advancing Department of Energy-backed test-reactor work, after receiving approval to load fuel and begin operational testing at its Groves Isotope Test Reactor. The company ended the second quarter with $3 billion in cash and marketable securities, including $1.9 billion raised through at-the-market equity offerings. Management said on its Aug. 7 earnings call that the capital should insulate Oklo from public equity markets for the foreseeable future as it funds first-of-a-kind project costs and site development while targeting commercial deployments through 2028.