Heh...that guy obviously has never traded. Of course you can give it a shot but I would bet there are selling restrictions...meaning you might be required to hold for certain amount of time. Also...prices move so any amount of time you have to hold your at risk...also you need to be buying enough to overcome the transaction fees. And, how is that buy order going through? What price will it get filled at...and where are the shares at and how will you execute a sell order and at what price? on and on.