Is Apple, world’s largest stock, ‘underowned’?

Shoppers look at iPhones at an Apple store in New York
Scott Mlyn | CNBC
Shoppers look at iPhones at an Apple store in New York

Jason Trennert, a top Wall Street strategist, makes the case that Apple is in fact "underowned" by the mutual fund and hedge fund community, a theory that may lift the stock to even greater heights as those active managers are forced to buy more shares in order to beat their benchmark.