BUZZ-Power companies slump to bottom of S&P 500 as AI-linked stocks slide

Updates

** Shares of electric utility companies, which are expected to see a surge in demand from power-hungry data centers needed to develop AI technology, tumble

** Chinese startup DeepSeek rolled out a free AI model that it says uses lower-cost chips and less data, wobbling investors' faith in the profitability of AI

** High-flying nuclear power companies slump to the bottom of S&P 500 .SPX; Vistra VST.N fall ~24.7% and Constellation Energy CEG.O slides 19.2%

** GE Vernova GEV.N, which last week reported growing demand for its gas turbines and grid equipment and services, drops 18.5%

** World's largest renewable power company NextEra Energy NEE.N drops 13.2%

** Sam Altman-backed nuclear startup Oklo Inc OKLO.N falls 22.4%; smaller companies NuScale Power SMR.N down 24% and Nano Nuclear Energy NNE.O down 20%