(GNRC), a supplier of standby power generators and other energy equipment, fell the most of any S&P 500 stock on Tuesday, dropping more than 10%. Analysts noted that the stock is trading near its all-time high, pushed upward by enthusiasm about demand from power-intensive data centers. Analysts noted that the stock is trading near its all-time high, pushed upward by enthusiasm about demand from power-intensive data centers. Shares of oilfield services giant Halliburton (HAL) rose 7.3%, notching the S&P 500's top daily performance, while Baker Hughes (BKR) gained 2.6%. TradingViewKenvue Stock Recoups Losses After Trump Links Tylenol to AutismKenvue stock is rebounding.