Shares of Potbelly Corporation (PBPB) have gained 8.7% in the past three months, outperforming the industry's 5.3% growth. Despite facing macroeconomic pressures, the company's ability to grow in a tough environment, alongside its successful expansion strategy, has caught the attention of investors. But does this mean it's time to buy PBPB stock? Major Growth Drivers for PBPB Stock Franchise Expansion: Potbelly's growth strategy revolves around aggressive franchising, and the company is making significant p ...