Equities slumped on both sides of the Atlantic after the International Monetary Fund reduced its forecast for global growth.
The global economy will expand 3.3 per cent this year and 3.6 per cent in 2013, the IMF said in its World Economic Outlook. That's down from July forecasts of 3.5 per cent in 2012 and 3.9 per cent in 2013.
Meanwhile, the latest round of US earnings-kicked off by Alcoa-is expected to clearly reflect the impact on corporate profits. Earnings reports for S&P 500 companies may show the first quarterly drop in three years, with analysts forecasting a 2.3 per cent decline from the year-ago quarter, according to Thomson Reuters data.
To be sure, some say expectations are so low that it leaves plenty of room for good news.
"There's so much pessimism over earnings that there's room for upside with any positive surprise," Paul Zemsky, the New York-based head of asset allocation for ING Investment Management, told Bloomberg News.