Wal-Mart saw its fifth quarter with stagnant or negative growth for U.S. same-store sales, reports CNBC's Courtney Reagan. Herb Greenberg thinks investors should look at the company's shift to ... more 
Wal-Mart saw its fifth quarter with stagnant or negative growth for U.S. same-store sales, reports CNBC's Courtney Reagan. Herb Greenberg thinks investors should look at the company's shift to e-commerce. less 
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Thu, May 15, 2014 1:39 PM EDT