道琼斯指数8月21日（周五）收盘上涨517.60点，涨幅0.98%，报53276.81点； 标普500指数8月21日（周五）收盘上涨33.15点，涨幅0.43%，报7674.31点； 纳斯达克综合指数8月21日（周五）收盘上涨113.29点，涨幅0.43%，报26180.45点。

A U.S. congressional notice shows the Trump administration has initiated a process to transfer USD 725 mln to the UN. Aid experts called the move a step toward repaying billions in U.S. dues; Washington previously cut funding to several UN agencies and criticized the organization’s performance. The payment was cited in a State Department notice to Congress dated Aug. 4 that had not been previously reported. Washington has not immediately explained the reason for the transfer. The funds are expected to be paid before President Trump attends and speaks at the UN General Assembly in New York next month.

市场消息：Anthropic在IPO申报文件中将AI行业面临的公众舆论反弹列为风险因素。