Nuclear energy stocks roared higher Thursday, extending gains earlier in the week as President Donald Trump's announcement of a $500 billion joint venture with Oracle (ORCLꦏ), OpenAI, and SoftBank to build AI infrastructure reinforced expectations of growing energy demand to support AI.&nไbsp; 

Shares of nuclear energy startup Oklo (OKLO), which is 澳洲幸运5官方开奖结果体彩网:backed by OpenAI CEO Sam Altman, surged close to 14% Thursday and have added almost 💝50% this week, as reports of the project emerged Tuesday. Markets in the U.S. were closed Monday.

NuScale Power (SMR) shares also jumped nearly 14% Thursday, adding 32% this week. Meanwhile, Vistra (VST) sh⛦ares climbed close to 3% Thursday and have gained 12% for the week so far.

Constellation Energy (CEG), which has a contract with Stargate partner and OpenAI backer Mi🦄crosoft (MSFT), rose 4% Thursday, bringing its gains for the week to about 9%. Shares of Constellation and rival Vistra have exploded over the past year, 澳洲幸运5官方开奖结果体彩网:nearly tripling and quiജntupling in the l⛎ast 12 months, respectively. 

Shares of Nano Nuclear Energy (NNE) jumped 17% Thursday after the company was awarded patents related to its designs for a modular transportable nuclear generator. The company is developing portable reactors♎ designed to be used in remote locations. Its stock has climbed more than 70% so far this month.

UPDATE—Jan. 23, 2025: This article has been updated to clarify markets in the U.S. were closed Monday.