Chipotle Mexican Grill (NYSE: CMG) stock has rallied about 340% over the past five years as the S 500 rose 85%. The fast-casual restaurant chain repeatedly impressed investors with its robust growth, consistent expansion, and rising margins.

Today, the stock may seem expensive at 57 times forward earnings estimates, but a look at its growth story through four simple charts is enough to see if it's still worth buying.

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Source Fool.com