US stocks start lower, Dow and S&P 500 extend losses into a third day By: CNBC.com News December 03, 2013 at 09:30 AM EST U.S. stocks opened lower on Tuesday as Wall Street considers when the Federal Reserve will cut stimulus. Read More >> Related Stocks: American Eagle Outfitters Apple Avago Technologies Big Lots Brown-Forman Cooper Companies Dollar General Esterline Technologies Corp Finisar Corp General Motors Synopsys Inc United Nat Foods Veeva Systems Inc Zumiez Inc