Not only are investors looking to dig into Berkshire's financials, they are also keenly awaiting Buffett's annual letter to shareholders that may offer commentary on investments and the economy.

The Oracle of Omaha has $180 billion collectively invested in four brand-name companies with well-defined competitive advantages and phenomenal capital-return programs.

There’s a good chance that Berkshire Hathaway’s stock will lag the S&P 500 in the coming years. This is a matter of simple probabilities, and not a criticism of Berkshire Hathaway Chairman and Chief Executive Warren Buffett or his designated successors.