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AT&T shares sink after MoffettNathanson downgrade

Shares of AT&T tanked more than 4% on Tuesday after MoffettNathanson downgraded the stock to sell on the belief that the telecom giant has bigger problems than a rivalrous wireless landscape. In a note to investors, analyst Craig Moffett wrote that even as the company has delivered on its promises for 2019, the picture for 2020 and beyond has gotten cloudier.