The Dow Jones closed down 1.32%, the Nasdaq fell 1%, and the S&P 500 dropped 0.87%. Among the most actively traded stocks, Micron Technology rose 3.97%, Nvidia fell 0.33%, SanDisk gained 2.02%, and SpaceX declined 4.05%.

Market news: Anthropic plans to include Citi as a lead underwriter in its major IPO.

According to filings with the U.S. Securities and Exchange Commission, Sean Lie, an executive at artificial intelligence company Cerebras (CBRS.US), plans to sell company shares worth $153.19 million.

In late trading on Thursday, August 20, in New York, spot gold closed up 0.08% at $4,519.36 per ounce, after experiencing a V-shaped movement throughout the day. Spot silver closed up 1.16% at $68.0944 per ounce. COMEX copper futures closed down 0.17% at $6.5840 per pound. Note: There was no obvious divergence within the precious metals sector that day; gold experienced relatively small fluctuations, while silver showed a relatively strong trend, and copper, with its strong industrial attribute

Spot platinum just broke through the $1,830.00/oz mark, now quoted at $1,829.79/oz, up 0.64% on the day; the main Nymex platinum futures contract is quoted at $1,841.0/oz, up 1.68% today.