U.S. stocks tumbled as volatility sparked by the spread of the coronavirus woes continued to grip financial markets. Treasury yields sank to record lows and haven assets surged.

The S&P 500 fell more than three per cent, erasing the majority of Wednesday’s steep gains, as wild swings piled up. The benchmark has had the most volatile week since S&P Global Ratings cut the U.S. debt rating in 2011. Banks and tech shares led losses.

Investor confidence has been shaken as cases of the virus continue to multiply across the world’s largest economy despite efforts by authorities to contain the outbreak. The 10-year yield sank to as low as 0.90 per cent, while the dollar plunged against the yen. Gold climbed and oil slid.

“It’s definitely volatile. Once things get to this point, it normally takes a few weeks for things to settle down,” Michael Shaoul, chief executive officer at Marketfield Asset Management LLC, told Bloomberg TV. “All we know now is that we don’t really understand what’s going to happen next. It’s probably four, six, eight weeks before we’re going to have any useful information as to what the trajectory of the virus is or what the actual economic fallout looks like.”

Risk assets have whipsawed this week, with traders still on edge amid a rise in virus cases around the world and governments extending quarantines and travel restrictions. An industry association warned the outbreak could cost airlines as much as US$113 billion in lost revenue. The S&P 500 has rebounded since the Federal Reserve pledged action on Friday, but it remains more than 10 per cent below last month’s all-time high.

These are the main moves in markets:


The TSC closed down 1.34 per cent to 16,553.99. The S&P 500 Index dropped 3.4 per cent. The Dow Jones Industrial Average fell 3.6 per cent. The Stoxx Europe 600 Index fell 1.4 per cent. The MSCI Asia Pacific Index gained 1.4 per cent.


The Canadian dollar closed off 0.12 cents at US$0.75. The Bloomberg Dollar Spot Index declined 0.3 per cent. The euro climbed 0.8 per cent to US$1.1226. The British pound gained 0.7 per cent to $1.2966. The Japanese yen strengthened 1.3 per cent to 106.16 per dollar.


The yield on 10-year Treasuries sank 14 basis points to 0.91 per cent. The yield on two-year Treasuries decreased 11 basis points to 0.58 per cent. Germany’s 10-year yield fell five basis points at -0.69 per cent.


West Texas Intermediate crude fell 1.9 per cent at $45.89 a barrel. Gold strengthened 1.9 per cent to $1,674.10 an ounce.