Appearing on CNBC Wednesday, Canadian businessman and television personality Kevin O’Leary raved about the state of the U.S. economy , based on his more than 50 “Shark Tank” companies. “Most of the Sharks have a similar portfolio,” O’Leary told CNBC on Wednesday. “It’s an amazing index on America’s economy because they’re almost in every state, in every sector.” O’Leary along with investors Mark Cuban, Robert Herjavec, Barbara Corcoran, Lori Greiner and Daymond John put up their own money on “Shark Tank” to buy stakes in start-ups looking for capital and influential business partners. “I can report to you, on a...