美国挑战者企业裁员报告：7月裁员人数骤降至33,429人，招聘计划略有增加；人工智能连续第五个月成为裁员主要原因。

U.S. initial jobless claims rose 1,000 to 199,000 in the week ended Aug. 1, below the 202,000 consensus, keeping labor-market resilience intact. Claims have fallen sharply since an early-June spike, though some of the decline may reflect seasonal-adjustment challenges over the summer. Separately, announced corporate layoffs in July fell to a two-year low, concentrated in the tech sector; there is no sign yet that AI infrastructure build-out is triggering broad job losses, and layoffs remained low despite oil-price shocks from fighting involving the U.S., Israel and Iran.

道琼斯指数8月5日（周三）收盘上涨263.06点，涨幅0.49%，报54348.94点； 标普500指数8月5日（周三）收盘下跌13.00点，跌幅0.17%，报7723.52点； 纳斯达克综合指数8月5日（周三）收盘下跌221.55点，跌幅0.83%，报26363.44点。