Equities on both sides of the Atlantic tumbled overnight, as energy stocks fell with the price of oil and as investors further unloaded tech stocks amid concern about the outlook for corporate profits amid a slowing global economy.
In 12.28pm trading in New York, the Dow Jones Industrial Average dropped 1.9 percent, while the Nasdaq Composite Index shed 2.1 percent. In 12.14pm trading, the Standard & Poor's 500 Index declined 2.1 percent.
Slides in shares of Visa and those of Goldman Sachs, last down 6.6 percent and 5.8 percent respectively, led the drop in the Dow.
"Investors can't make up their minds about the global economy, but the risk of recession and deflation is rising," Francois Savary, the chief investment officer of Prime Partners, a Geneva-based investment manager, told Bloomberg.
"It's not enough that valuations have receded quite significantly and earnings haven't been too bad-sentiment is very low and there isn't much visibility right now. That's frightening," Savary noted.