美国股市在下午交易中下跌，因为投资者在标准普尔500指数创下历史新高的强劲一周后获利回吐，有迹象表明美国经济的通胀压力仍然持续存在。标准普尔500指数下跌0.8%，纳斯达克100指数下跌1.4%，道琼斯指数下跌0.4%。科技股领跌，英伟达下跌3.8%，因对中国销售的谨慎指导打压市场情绪，而戴尔在令人失望的预测后下跌8.6%。通胀仍然是关注的焦点，因为美联储首选的指标核心个人消费支出指数在7月份同比上涨2.9%，为2月份以来的最高水平，高于央行的目标。额外的压力来自新的关税担忧，卡特彼勒警告称，今年的相关成本高达18亿美元。尽管周五有所回落，但这三个指数仍有望在8月收盘时实现稳健的月度涨幅，延续了一年多来最长的连胜纪录。

US stocks fell in the afternoon trading as investors took profits following a strong week that saw the S&P 500 reach record highs, amid signs that inflationary pressures remain persistent in the US economy. The S&P 500 lost 0.8%, the Nasdaq 100 declined 1.4%, and the Dow slipped 0.4%.Technology shares leading the retreat, with Nvidia dropping 3.8% as cautious guidance on China sales weighed on sentiment, while Dell slumped 8.6% after disappointing forecasts. Inflation remained in focus as the Fed’s preferred gauge, the core PCE index, rose 2.9% year-on-year in July, the highest since February and above the central bank’s target. Additional pressure came from renewed tariff concerns, with Caterpillar warning of up to $1.8 billion in related costs this year. Despite Friday’s pullback, all three indexes remained on track to close August with solid monthly gains, extending their longest winning streak in more than a year.