Shares in food-to-go retailer Greggs (LSE: GRG) are on the move again today, after the company upgraded its profit guidance for the third time since May. Greggs’ share price has now risen 140% over the last 12 months. The strength and speed of the company’s recovery has impressed me. Customers have flocked back to the group’s stores as the pandemic’s eased. I reckon this business...