PayPal (PYPL 2.30%) is a leader in the electronic payments niche of the broader financial services industry but hasn't been too kind to investors in recent years. Shares currently trade at an alarming 73% off their peak, which was established in July 2021.However, there's been a renewed sense of optimism from the market, as the fintech stock has climbed 25% in the past three months (as of Nov. 18). Does this momentum make the PayPal shares a no-brainer buy that can double in five years?Solid financial perfo ...