Buying in stages is a strategy I don't see discussed much at all unless of course a stock immediately plummets shortly after buying. It's at this point many foolishly believe that buying more is a good way to average down and improves their chances of performance, however this is not exactly the "legging in" I am talking about.
Buying in stages or legging into a stock not only helps you to gain a better feel for how that stock is trading but it also helps you to remain patient and stay away from the desire to chase a hot stock that is on the move. Furthermore, if you anticipate a move coming and you are wrong, you can close out the position quickly for a minimal loss.
News 
Market Data 
Discover 
