US STOCKS-Wall St rallies, S&P 500 briefly hits record By: Reuters: Company News March 21, 2014 at 12:22 PM EDT * Dow up 0.7 pct, S&P up 0.5 pct, Nasdaq down 0.1 pct (Updates to midday) Read More >> Related Stocks: Darden Restaurants First Solar Halliburton Co Nike Inc Symantec Corp Tiffany & Co Zions Bancorp