Stock index futures pointed to a higher open on Wall Street on Tuesday, with futures for the S&P 500 up 0.25 percent, Dow Jones futures up 0.29 percent and Nasdaq 100 futures up 0.36 percent at 0920 GMT.
European stocks <.FTEU3> were up around 0.7 percent, while Japan's Nikkei average <.N225> jumped 2.4 percent to hit its highest closing level since a massive earthquake and tsunami triggered a radiation crisis a year ago, buoyed by indications the U.S. Federal Reserve may keep its supportive monetary policy.
Brent crude held steady above $125 while the dollar stayed near a one-month low against a currency basket on Tuesday after Bernanke kept the door open for more monetary easing, though debt worries left the euro struggling to extend gains versus the U.S. currency.
The European Commission has opened an in-depth investigation into the proposed acquisition of Goodrich Corp
Orders flowed normally through BATS Global Markets on Monday, bringing a sigh of relief that the core trading business of the nation's third-largest stock exchange remains on track despite a high-profile trading snarl on Friday.
Discount retailer Dollar General Corp
Bausch & Lomb said it agreed to buy Ista Pharmaceuticals Inc
On the macro front, investors awaited the S&P/Case-Shiller Home Price Index for January, due at 1300 GMT, while the Conference Board releases March consumer confidence at 1400 GMT.
The S&P 500 rebounded from its worst week so far this year to retake a four-year high on Monday after Federal Reserve Chairman Ben Bernanke signaled supportive monetary policy will remain even though the job picture has begun to improve.
The Dow Jones industrial average <.DJI> shot up 160.90 points, or 1.23 percent, to 13,241.63 at the close. The Standard & Poor's 500 Index <.SPX> gained 19.40 points, or 1.39 percent, to 1,416.51. The Nasdaq Composite Index <.IXIC> climbed 54.65 points, or 1.78 percent, to 3,122.57.
(Reporting by Blaise Robinson; Editing by Hans-Juergen Peters)