Should You Buy PepsiCo Stock Because Its International Business Keeps Accelerating?

PepsiCo (PEP) stock traded at $129.75 on September 18, the lowest price of its past 52 weeks. The worry is North America, where sales of snacks and drinks have disappointed. Yet the part of PepsiCo that sells outside the U.S. is growing faster and earning more on each sale. The share price appears to give that part little credit.