CNBC Daily Open: U.S. stocks retreat from highs as Broadcom leads tech sell-off

Group 1 - The sell-off in artificial intelligence stocks continued, with Broadcom shares dropping over 11% due to concerns over lower margins and uncertain deals, impacting other tech stocks like Nvidia, AMD, and Oracle [1] - Despite the decline in tech stocks, the Dow Jones Industrial Average rose 1.1% week on week, driven by strong performance in financial stocks, while the S&P 500 and Nasdaq Composite fell by 0.6% and 1.6% respectively [2] - Broadcom's earnings and guidance exceeded expectations, indicating strong performance in its AI segment, which has been described as overdelivering and accelerating [3] Group 2 - Future prospects for the industry appear positive, with expectations of high profitability driven by AI, power and resources, and longevity themes impacting performance in 2026 [4] - Investor sentiment remains cautious in the near term, with a need for concrete reassurances, such as Oracle achieving positive cash flow, to stabilize confidence in the market [4]