S&P 500 Gains and Losses Today: Chip Stocks Surge as Holiday Trading Week Begins

Key TakeawaysThe S&P 500 added 0.7% on Monday, Dec. 23, 2024, with communication and tech stocks outperforming as the holiday-shortened trading week got underway.Broadcom and AMD shares surged following positive analyst commentary and as a government probe into Chinese semiconductors helped boost chip stocks.Shares of ResMed slipped after the FDA approved Eli Lilly's weight-loss drug as a sleep apnea treatment, raising concerns about sales of ResMed devices. Major U.S. equities indexes moved higher to kick ...