The U.S. Dow Jones stock index decreased by 1.90% to 23,644.19 points, S&P 500 by 2.23% to 2,581.88 points and NASDAQ by 2.74% to 6,870.12 points.
There was no change in the European stock markets.
At the latest COMEX auctions, gold prices descended $4.70 to $1,342.20 an ounce and silver price grew $0.13 to $16.55.