Billionaire Bill Ackman Just Scooped Up Shares of This Unstoppable Stock

Billionaire Bill Ackman and his Pershing Square fund have made some moves recently. Although it hasn't been disclosed in a Form 13-F, the fund stated that it scooped up shares of Amazon (AMZN -0.08%) at an "extremely attractive" price. Although it didn't give details on what the entry point was, I think it's safe to assume that management essentially bought the bottom of the stock market sell-off in April.Although Amazon's stock has risen significantly since then, is there still enough value in the stock to ...