Walmart Shares Rise 7% on Strong Sales Report
b"Plus: the Dow touches 40000 before closing lower. Chubb shares climb 4.7% after Warren Buffett\\u2019s Berkshire Hathaway announces a $6.7 billion stake in the insurer. J.R. Whalen reports.\\n\\n\\n\\nSign up for the WSJ's free What's News newsletter.\\n\\nLearn more about your ad choices. Visit megaphone.fm/adchoices"