Shares of Sweetgreen, Inc. (SG) have gained 23.6% in the past three months compared with the industry’s 6.3% growth. The company is benefiting from solid traffic and strategic pricing. Also, the focus on menu innovation and expansion efforts bode well. However, elevated expenses are a concern.Growth Catalysts for SG StockSweetgreen’s growth strategy is centered on two key pillars: menu innovation and restaurant expansion. The company opened four new restaurants in the second quarter, with a strong pipeline ...