Why Wal-Mart Is Investing In Shipping: JPMorgan Explains By: Benzinga via Benzinga May 14, 2015 at 14:46 PM EDT Wal-Mart Stores, Inc. (NYSE: WMT) announced recently that it is rolling out a free shipping service similar to Amazon.com, Inc. ... Read More >> Related Stocks: Amazon.com Tidelands Oil & Gas Corp Wal-Mart Stores, Inc.