US STOCKS-Wall St extends gains as defense, tech stocks rise By: Reuters: Company News May 22, 2017 at 12:55 PM EDT * Indexes up: Dow 0.46 pct, S&P 0.48 pct, Nasdaq 0.69 pct (Updates to early afternoon) Read More >> Related Stocks: Amazon.com Apple Boeing Co Ford Motor Genl Dynamics Lockheed Martin Microsoft Raytheon Co