Nvidia shares closed down 4.51% to US$96.91. The stock is now down 29.9% year-to-date.
Tesla shares fell 6.0% to US$227.42. The stock was at US$432.49 on January 21 as Trump took power.
The Dow industrials index dropped almost 1000 points and is now pace for its worst April since 1932, according to a Wall Street Journal report.
Gold surged to over US$3400 a troy ounce, a new record.
The ICE US dollar index, a measure of the dollar against a basket of major currencies, slipped more than 1% to its lowest level in three years. The dollar hit fresh lows against the euro, pound, yen and Swiss franc.
10-year Treasury yields rose to 4.40%
Trump’s attack on Powell “creates more uncertainty”, said Adam Sarhan of 50 Park Investments.
“Nobody knows what’s going to happen going forward.
“And the fear that, we might actually have a recession unfold is stronger than anything else right now.”
Among individual companies, Netflix climbed 1.5% following better-than-expected results as revenues rose following subscription price hikes.
This week’s earnings calendar includes reports from Tesla, Boeing and Procter & Gamble.
Also on the agenda will be the annual spring meetings in Washington at the International Monetary Fund and World Bank.
-Agence France-Presse. With reporting by Herald staff