Zoom out. Even after Friday's drop, Nu has soared 69% this year. Go back further, and you'll see the stock has soared 245% since the start of last year. Buffett owns 20.7 million fewer shares now, but the value of his Nu stake is 56% higher than it was at start of this year and a beefy 197% greater than it was a year earlier.

Despite his immense wealth, Warren Buffett, as he admits, is a man of simple tastes. Perhaps that focus on basic American food staples inspired one of the more unexpected new buys from his investment vehicle Berkshire Hathaway (NYSE: BRK.

Warren Buffett is now sitting on more than $325 billion cash after continuing to unload billions of dollars worth of Apple and Bank of America shares this year and continuing to collect a steady strea