Can the stock continue rallying higher this year?One of the top growth stocks in the restaurant business is undoubtedly Chipotle Mexican Grill (CMG 0.19%). It's often associated with high growth and success, with its strong numbers serving as benchmarks for other businesses.Investors are frequently willing to pay significant premiums for a business like Chipotle, and that's evident in its valuation. Currently, the stock trades at an all-time high, up around 40% this year. But has the valuation finally becom ...