Warren Buffett Bought These 2 Stocks. Should You?These new additions to Berkshire Hathaway’s portfolio are solid companies with economic moats. But only one of the stocks is undervalued today. Susan Dziubinski: I’m Susan Dziubinski with Morningstar. Warren Buffett’s Berkshire Hathaway BRK.A BRK.B recently released its latest 13F, which revealed which stocks the firm bought and sold during the se..