Shake Shack shares are up after the company handily beat earnings and revenue estimates in Q3.Shares of Shake Shack (SHAK +5.61%) rose 5% in intraday trading on Thursday as the company's well-received third-quarter earnings report pushed shares higher. The company reported revenue of $367.4 million for the quarter, up 15.9% year over year. Net income was $12.5 million, while its restaurant-level profit margin ticked up to 22.8%.Just as important as the improved numbers was the expectations game. Shake Shack ...