The largest supermarket group in Canada, Loblaw Cos, saw its shares fall nearly 3% yesterday [Monday] as the market responded to news that US behemoth Wal-Mart Stores Inc would not be putting in a takeover bid for the company. Speculation last week that George Weston, the Toronto-based company's majority owner was a mulling a sale to Wal-Mart prompted Loblaw's shares to gain 10% on the Toronto Stock Exchange.