US STOCKS-ECB measures lift Wall St in volatile session By: Reuters: Company News January 22, 2015 at 12:36 PM EST * Indexes up: Dow 0.7 pct, S&P 0.8 pct, Nasdaq 1 pct (Updates to midday trading) Read More >> Related Stocks: American Express F5 Networks Royal Bank of Canada TravelersCompanies eBay