NEW YORK (CNNMoney.com) -- Stocks looked set to tumble at Tuesday's open after Federal Reserve chief Ben Bernanke fanned inflation concerns.

At 6:24 a.m. ET, Nasdaq and S&P futures were lower and indicating a negative start for Wall Street.

Bernanke: The Fed chairman said in a speech Monday night that inflation has remained high and that the central bank would "strongly resist an erosion of longer-term inflation expectations." The comments unnerved investors as they bet that the Fed would raise rates sooner than expected.

For Read More...