The stock market opened with losses Monday as trading began for the first time since the U.S. government suffered a significant hit to its creditworthiness. The Dow Jones Industrial Average,

U.S. stocks pared early losses Monday as investors largely shook off concerns about the U.S. government's growing debt problem.

Stock futures declined before the opening bell Monday after the U.S. credit rating was downgraded by Moody's Ratings on Friday. As of 8:30 a.m. EST, S&P 500 futures had shed 65 points, or 1.1%, while Dow Jones Industrial Average futures declined 252 points or 0.