Wall Street in worst two-day decline in wake of Fed stimulus wind-down plan

NEW YORK: The Federal Reserve's plans to begin winding down its massive monetary stimulus later this year hit shares on Wall Street for a second day Thursday, putting the S&P 500 index on track for its worst two-day decline in seven months. 

Stocks were down across all sectors, extending a selloff sparked by Fed Chairman Ben Bernanke's comments Wednesday on how the Fed might begin to withdraw its $85 billion in monthly bond purchases before the end of the year as the economy improves.