Concern about disappointing earnings from companies including Netflix and 3M, and a cancelled meeting from European Union finance ministers weighed on Wall Street.
Netflix suffered, with the stock tanking more than 35 per cent, after the company said yesterday after the market closed that it lost more customers than it expected in the third quarter and warned of more departures ahead. 3M slashed its 2011 forecast.
The shortfall in profits re-ignites concern that the economic outlook is gloomy. That's reflected in US consumer confidence too, which unexpectedly dropped in October to the lowest level in 2-1/2 years.
Compounding investors' worries is the seemingly never-ending uncertainty about the ability of euro zone leaders to get a grip on the region's debt crisis.
While the summit by EU leaders is still expected to proceed on Wednesday as scheduled, the cancellation of the finance ministers' meeting didn't impress.