US STOCKS-Wall St jumps for 2nd day, helped by economic optimism By: Reuters: Company News January 08, 2015 at 16:44 PM EST * Indexes up: Dow 1.8 pct, S&P 1.8, Nasdaq 1.8 pct (Updates to close) Read More >> Related Stocks: AbbVie Neurocrine Bioscienc Urban Outfitters