I present the chart below not as an idea, but simply as an example of the kind of momentum action that's happening in select securities. I have never been able to bring myself to hop aboard such trains, because you never know when they're going to stop (witness Chipotle – CMG – which fell 12% in the past three trading sessions off its lifetime high).
In the market ever falls in a meaningful way again, and this got back down to the high 50s, I'd be very, very interested. As it is now, I'm simply an observer.