Shares of Shake Shack Inc. (SHAK) have soared 34.2% in the past year compared with the industry’s 8.7% growth. The company is benefiting from menu innovation, digital Initiatives and unit expansion efforts. Also, emphasis on licensed business bodes well. However, pressured traffic from weather challenges and an uncertain macroeconomic environment is a concern.Growth Drivers for SHAK StockCulinary innovation remains a key differentiator for Shake Shack. The brand continues to develop distinctive menu items t ...