US markets opened lower ahead of tomorrow's key jobs data, as the global sell-off gathered pace on negative news from Europe.
The Boston Company AM's Saffaye analyses recent US data.
Shares in the US and across Asia fell overnight as investors fretted over the outlook for global growth, amid weak data from the US.
Markets in Asia tumbled overnight, with China's domestic market selling off sharply, amid ongoing concerns over the recovery in the west.
The S&P 500 closed at its highest level since May 2008 after Fed chairman Ben Bernanke hinted the US central bank would keep in place its supportive monetary policy.