U.S. futures signaled a flat-to-lower Wall Street open on Tuesday, as markets in Europe and Asia remained cautious ahead of Federal Reserve chief Ben Bernanke's testimony to the Senate.
European shares closed narrowly lower on Tuesday, with global markets cautious amid ongoing worries the Federal Reserve may taper its bond purchase program.
Caution prevailed in Asian trade on Tuesday as investors grow concerned about the duration of global monetary stimulus ahead of Federal Reserve chief Ben Bernanke's testimony to the U.S Senate.