US STOCKS-S&P 500 eases, ends longest winning run in 8 years By: Reuters: Company News January 28, 2013 at 16:57 PM EST * Dow down 0.1 pct, S&P 500 down 0.2 pct, Nasdaq up 0.2 pct Read More >> Related Stocks: Apple Boeing Co Caterpillar Exxon Mobil Hess Corp Yahoo