AI power companies rise on upbeat capital spending forecast from Microsoft

** Shares of power companies rise after AI firms Microsoft MSFT.O, Meta META.O post upbeat forecasts

** Microsoft forecast $30 billion in capital spending for expanding artificial intelligence capacity which requires heavy power investments

** Shares of Constellation Energy CEG.O, Nano Nuclear NNE.O, Oklo OKLO.N and Vertiv VRT.N rise between 2% to 5%

** Including session gains, CEG up 57%, NNE up 52%, OKLO up 270% and VRT up 32%