Top three trades

12:15 PM ET Mon, 9 Sept 2013

In today's top 3 trades, Goldman Sachs gives Wal-Mart a "buy" rating, Yum Brands reported China sales fell by 10 percent, and BlackBerry trades higher on speculation of Fairfax Financial buying the company. And CNBC's Jon Fortt previews what Apple may have in store for their big announcement tomorrow.