Trading is more human psychology than skill in most cases and Praxair (PX) is a prime example of this. When watching stocks around the $100 level, it is known upon professionally traders that if a stock can break out through the $100 level on strong volume and hold above it that day. All one must do is put there stop under $100 and let it ride. Now the novice investor usually does not know this, and will at some point get stopped out while the professionally trader sets his stop at $99.99 for example and lets the trade ride.
On this given day (circled on the chart) the risk in this trade would be around $1, entry through $100, stop below $100 and now the stock has gained over 14% in less than a month.
Keep an eye on stocks as they approach the $100 level and you can spot some easy trades with great upside potential !