4. Berkshire Hathaway (BRK.B)
Current stock value: $105.02 per share
One-year range: $78.21-$107.40
2012 revenue: $162.5 billion
2012 net income: $14.8 billion
Warren Buffett’s conglomerate based in Omaha, Neb., owns or holds significant stakes in a multitude of well-known companies, including Dairy Queen, Geico, Helzberg Diamonds, and Heinz, to name a few. Mr. Buffett says Berkshire Hathaway has averaged an annual growth in book value of 19.7 percent for the last 48 years, better than double the performance of the S&P 500.