Go big or go home. Billionaire investor Bill Ackman of Pershing Square Capital Management takes that sentiment to heart. His hedge fund has some $13 billion in assets under management, but he owns just 10 stocks (track his portfolio here),

Bill Ackman built a net worth of $9.3 billion by spotting promising opportunities. Ackman noted in his post on X (formerly known as Twitter) that his hedge fund has owned Federal National Mortgage Association (OTC: FNMA) (commonly known as Fannie Mae) for more than 10 years.