US STOCKS-Wall St flat; first-quarter results mixed so far By: Reuters: Company News April 16, 2015 at 13:23 PM EDT * Dow down 0.02 pct, S&P 500 down 0.04 pct Nasdaq down 0.1 pct Read More >> Related Stocks: Etsy Inc Goldman Sachs Group Netflix SanDisk Corp UnitedHealth Group