US STOCKS-Wall St lower in volatile trading; tech, materials down By: Reuters: Company News March 26, 2014 at 14:39 PM EDT * Dow off 0.36 pct; S&P off 0.38 pct; Nasdaq off 0.96 pct (Updates to afternoon trade) Read More >> Related Stocks: Facebook Gilead Sciences Insmed Inc King Digital Laboratory Corp American Holdings PVH Corp Quest Diagnostics Regeneron Pharmaceuticals Tenet Healthcare Toyota Motor Corp Ltd Ord ADR