Tuesday's declines add to the toll after major indices slumped more than three percent Monday in a rout precipitated by the spread of the virus beyond China. The declines came as US companies cited potential coronavirus impacts, including less spending from tourists and supply chain problems.
"Bit by bit, US investors are seeing the prospects for global growth diminish," said Gregori Volokhine of Meeschaert Financial Services.
"With the news of the last three or four days, it's hard to be optimistic." Mastercard slumped 5.3 per cent as it forecast that first-quarter sales growth would be two to three percentage points below its prior projection due to the hit to cross-border traffic and e-commerce from the coronavirus.
Macy's dropped 4.9 perc ent as it warned that the coronavirus was a concern to its supply chain and sales from overseas tourists. But company executives said it was too soon to estimate any hit from the outbreak.
United Airlines shed 6.0 per cent as it withdrew its full-year profit forecast, citing uncertainty from the virus. United has lost 100 per cent of its near-term travel demand to China and about 75 per cent of demand to the rest of its trans-Pacific routes.