The stocks of Chipotle Mexican Grill are both down today on an analyst downgrade, which is fine. The company’s price has certainly been bid up. What continues to amaze me, though, is the lack of attention to the very obvious mispricing that exists between the company’s class A and class B shares. For one thing, oftentimes the B shares aren’t even mentioned, or reports will just make reference to “shares of Chipotle,” as if they are all the same.