It's difficult to believe that Henry Kravis could suffer from portfolio envy. The private equity titan and co-founder of Kohlberg Kravis Roberts (KFN) is famous for his ability to buy and sell companies for profit. It's a skill that has made him enormously wealthy over his 33 years at KKR's helm: Kravis, 65, is worth an estimated $3.8 billion, according to Forbes. His firm owns or holds stakes in 51 companies with combined annual revenues of $218 billion—more than double that of private equity rivals Blackstone (BX) and the Carlyle Group. Among KKR's big-name holdings: retailer Toys "R" Us, research firm Nielsen, and hospital giant HCA.
Yet as he sits in his sparsely decorated office overlooking the south end of New York's Central Park, Kravis' thoughts drift west, to Omaha, the home of financial conglomerate Berkshire Hathaway (BRK.A). "He can make any kind of investment he wants," Kravis says of Berkshire CEO Warren Buffett, the object of his admiration. "And he never has to raise money." Kravis thinks Berkshire, with its piles of cash and trove of publicly traded shares with which to make acquisitions, is nothing less than "the perfect private equity model."