Hey, I'm Kramer. Welcome to Mad Money. Welcome to Kramer.My friends, I'm just trying to make a little money. My job is not just entertain but to explain all this stuff to teach it to you. So call me 1800743 CBC.Tweet me at Jim Kramer. When you want to buy a stock, you need an edge. It's never enough to just say, you know what, it's time to buy XYZ.I just feel it like the darn thing's a racehorse. A and you don't even know to read the racing form. There are all sorts of ways to get an edge.I love an edge. Ma ...