US stocks pull back on credit fears

Wall Street pulled back in erratic trading today as investors grew more concerned about a deteriorating housing market and the widening impact of soured debt after Citigroup Inc. warned it plans to book eight billion dollars to 11 billion dollars in additional losses.

Citi’s expected losses came on top of the 6.5 billion dollars in asset markdowns and other credit-related losses the company recorded in the third quarter.