Stocks opened lower Monday, feeling pressure as Treasury yields surged and the dollar weakened following a decision by Moody's Ratings to strip the U.S. government of its last remaining triple-A credit rating.

By Shashwat Chauhan and Kanchana Chakravarty (Reuters) -Wall Street futures fell and Treasury yields rose on Monday after Moody's downgraded the U.S. sovereign rating, sharpening focus on the country's mounting debt.

Stock index futures fell sharply on Monday after Moody’s Ratings decision to strip the U.S. of its last remaining top-tier credit score.