Stocks add to post-Fed loss; PMI lift fades By: MarketWatch October 31, 2013 at 09:14 AM EDT U.S. stocks slip, extending losses sparked by a less-dovish-than-expected statement from the Federal Reserve a day earlier. Read More >> Related Stocks: American International Group ConocoPhillips Exxon Mobil Facebook Standard & Poors 500 Starbucks Corp Visa