Looking for Growing Passive Income? Buy This Dividend Stock

Berkshire Hathaway's (NYSE: BRK.A)(NYSE: BRK.B) investment portfolio is worth nearly $347 billion, which positions it as one of the largest holding companies in the world. Unless you have a management team that knows what it's doing, it's impossible to grow a holding company to this level. Fortunately, the company is led by Warren Buffett and Charlie Munger -- two of the greatest investors of all time.