For many investors, Shake Shack Inc (NYSE:SHAK) typifies the overbought stock. After an IPO at $21 a share, the stock flew all the way $95 due to so-called "brand euphoria" before settling in the $45 range. While many called the company overvalued on its upward rise, the stock now seems reasonably priced based on several key growth factors and its unbelievable brand strength.