There are some stocks that I never short. Ever. Because they simply confound me with their strength, and if I have no idea why a given stock does what it does, I want nothing to do with it. AutoZone is one example. Chipotle Grill is another.
I've mentioned this food joint many times, and it's beyond me why the company is so ragingly successful. I have eaten at many Mexican food places, and I assure you, I can get better-tasting food for less money at just about any Grullense.
But you can't argue with the chart. This is simply awe-inspiring.