Any conversation regarding the most astute investors of all time will no doubt include Berkshire Hathaway chief Warren Buffett. The legendary investor earned the nickname "Oracle of Omaha" for his uncanny ability to uncover successful investments others overlooked -- and his roots in Omaha, Nebraska.

Buffett has run Berkshire Hathaway for more than 50 years, amassing an unrivaled track record. Since taking the helm in 1965, its stock has gained more than 20% annualized and overall has gained a mind-boggling 3,641,613%. 

The past 18 months have been tough for investors, and an increasing number of them are looking for any edge they can find to improve their returns. Some are poring over Berkshire's extensive holdings in hopes of uncovering a hidden gem.

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Source Fool.com