The Dow Jones soared above 12,000 points at open with investors buoyed by the agreement on Europe's debt crisis and soaring economic growth.
US markets recovered from initial falls on the opening bell as investors digested an ECB rate freeze and some positive US employment data.
US markets dropped on the opening bell as investors braced for three sets of unemployment data including Friday's September non-farm payroll figures.
The FTSE 100 has fallen a further 2.7% in early trading after the S&P 500 closed under 1,100 for the first time since September 2010.
The Dow Jones has ended a three day winning streak, with investor sentiment taking a hit from losses in ‘safe haven' commodities.
The Dow Jones has opened slightly down, following a day of volatile trading in Europe.
US shares tanked at opening, copying markets across Europe, as investors Stateside gave the Fed's latest efforts to stave off recession the thumbs down.
US markets fell 2% at open, adding to the grim picture in Europe, as investors continued to fret over the future of Greece.
Today's pledge by five central banks, including the Federal Reserve and the Bank of England, to raise the liquidity of commercial banks has boosted markets worldwide.
It has been an uncomfortable summer for investors as the credit crisis from 2008 continues to plague markets, this time in the guise of a sovereign debt crisis. But how have markets really coped?