Dow Surges 730 Points as Caterpillar Earnings Spark Industrial Rally

US equity markets experienced a divergent session on Thursday, with the Dow Jones Industrial Average climbing 730 points and the S&P 500 reaching a new intraday high. The rally was primarily fueled by strength in the industrial sector, contrasting with a pullback in mega-cap technology stocks as investors questioned the immediate returns on massive artificial intelligence investments. Caterpillar shares surged 10% following the release of a strong earnings report, providing a significant lift to the price-weighted Dow. This industrial strength suggests resilience in heavy machinery and infrastructure demand, offsetting losses in other areas of the market. In contrast, Meta and Microsoft faced selling pressure. Market participants expressed caution regarding the scale of AI spending, leading to a dip in these high-growth names as the market weighs the cost of infrastructure against realized revenue gains. Despite the drag from the technology sector, the broader market momentum remained positive. The S&P 500's climb to fresh intraday peaks indicates a widening of market breadth beyond the typical tech-led rallies seen in recent months.