US STOCKS-Earnings trigger Wall St selloff, data weighs further By: Reuters: Company News January 27, 2015 at 12:48 PM EST * Indexes down: Dow 1.7 pct, S&P 1.2 pct, Nasdaq 1.5 pct (Updates to afternoon) Read More >> Related Stocks: Caterpillar Facebook Microsoft Pfizer Procter & Gamble