US STOCKS-Wall St ends down 1 pct on Caterpillar, Microsoft earnings By: Reuters: Company News January 27, 2015 at 16:20 PM EST * Indexes down: Dow 1.7 pct, S&P 1.3 pct, Nasdaq 1.9 pct (Updates to close) Read More >> Related Stocks: Caterpillar DuPont USA Johnson & Johnson Microsoft Procter & Gamble