Diversify? Almost half of Warren Buffett’s Berkshire Hathaway portfolio comprises a single stock
Warren Buffett once said that “diversification is protection against ignorance. It makes little sense if you know what you are doing.” The takeaway: Load up on what you know.
Even if it’s a tech stock, apparently.
A recent peek into Buffett’s Berkshire Hathaway BRK.A, -0.87% BRK.B, -0.85% $214-billion portfolio underscores that the Oracle of Omaha is following his own advice, considering how much stock Berkshire has accumulated in Apple AAPL, -0.31% .
Buffett, thanks to Apple’s stellar run, now owns more than $91 billion worth of the iPhone maker, which...