76% of Warren Buffett’s Berkshire Hathaway Portfolio Value Is in These 5 Stocks

Berkshire Hathaway’s (NYSE: BRK.A)(NYSE: BRK.B) Warren Buffett has said: “Diversification is protection against ignorance. It makes little sense if you know what you are doing.” While having a meaningful degree of portfolio diversification is likely a smart move for most investor

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