Since I recommended PepsiCo Inc. (NYSE: ) on Oct. 20, the stock has greatly outperformed the market, up about 10%. 

However, the stock has underperformed since the market began its rebound on March 10. And since the end of March, Pepsi’s shares have lagged those of arch rival, The Coca-Cola Co. (NYSE: ), since the end of March, as well.  I recommended Coca Cola last week after the company reported stellar growth in the emerging markets.

While Pepsi’s less-than-stellar performance is not yet a major concern, the trend is discomforting.  In addition, there has been a major divergence in the strategies of these two companies. 

While both Coke and Pepsi divested of their bottling operations many years ago, Pepsi just agreed to buy back two of them: Pepsi Bottling Group Inc. (NYSE: PBG) and PepsiAmericas Inc. (NYSE: ). And it paid a stiff premium in each deal, about 24% and 23%, respectively, above their pre-deal market prices. The total value of the deal was a cool $7.8 billion. 

Now allow me to say that these companies are impressive operations by themselves:

• Pepsi Bottling Group is PepsiCo’s largest bottler. The company takes in $14 billion a year and operates in the United States, Canada, Greece, Mexico, Russia, Spain and Turkey, and boasts 67,000 employees.

• Pepsi Americas is PepsiCo’s second-largest bottler. It brings in $4.9 billion annually from operations in the United States, Ukraine, Poland, Romania, Hungary, the Czech Republic and Slovakia.  In addition, its new joint venture covers the Caribbean and Central America.

So why bother with these acquisitions?

The justification for this move is that "in a rapidly changing, more-complicated global market, a leaner, more agile business model is pretty important," said Pepsi Bottling Group Chief Executive Officer Eric J.