It's dropping because it shot up to a point it couldn't sustain. Anytime a stock shoots up like WEX did there is going to be massive profit taking and when that happens it is usually coupled with panic selling driving the price down. It doesn't have anything to do with the underlying stock, just two emotions, greed and fear. Just like the two emotions that made it go up so fast, greed and exhilaration. Shed the fear and exhilaration and focus on the greed and you will do quite well.