Stock index futures pointed to a lower open on Wall Street on Thursday following the previous session's sharp losses, with futures for the S&P 500 down 0.21 percent and Dow Jones futures down 0.24 percent, while Nasdaq 100 futures were up 0.08 percent at 0941 GMT (5:41 a.m. ET).
World stocks hit a three-month low on Thursday, the euro slumped to a one-month trough and top-rated government bonds rose as concerns intensified the lack of a deal on Greek debt might trigger disorderly market moves.
Greek Prime Minister George Papandreou prepared to reshuffle his cabinet on Thursday and press ahead with a new round of austerity measures demanded by Greece's international lenders for the country to avoid default.
On the macro front, investors awaited U.S. housing starts and permits, weekly jobless claims, and the Philadelphia Federal Reserve Bank's business activity survey.
The number of U.S. homes seized by banks fell in May as processing delays continued to hamper foreclosures, a closely watched survey said on Thursday.
The China units of HSBC Holdings
Research In Motion
Demag Cranes AG
U.S. stocks tumbled on Wednesday, driven lower by escalating Greek debt woes, while troubling U.S. data pointed to further losses ahead.
The Dow Jones industrial average <.DJI> dropped 178.84 points, or 1.48 percent, to 11,897.27. The Standard & Poor's 500 Index <.SPX> lost 22.45 points, or 1.74 percent, to 1,265.42. The Nasdaq Composite Index <.IXIC> slid 47.26 points, or 1.76 percent, to 2,631.46.
The CBOE Volatility Index <.VIX> jumped 16.8 percent to 21.32 -- its highest level since March 18.
(Reporting by Blaise Robinson; editing by Sophie Walker)