"Apple is a different kind of business than IBM"

7:22 PM ET Tue, 3 April 2018

By early 2018, Warren Buffett has substantially increased Berkshire's holdings in Apple—and sold off most of its IBM stock. On CNBC's "Squawk Box," he admits he “was wrong” when he bought IBM—but he’s more confident in Apple and the psychological hold the company has over its consumers.