Shares of the fast-casual restaurant chain have crushed the market over the past five years.Chipotle Mexican Grill's (CMG -2.60%) extraordinary leap to the top of the food (or restaurant) chain has yielded thousands of percentage points in gains for loyal investors. Chipotle's share price has reached so high that it's undertaking a 50-for-1 split this week.Stock splits often reflect management's confidence that the stock price can go still higher. Let's see where we can expect Chipotle to be five years from ...