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Though Warren Buffett stepped down from his role as CEO of Berkshire Hathaway at the end of 2025, he is far from retired in the traditional sense. The 95-year-old is still working in the office five days a week as the company’s chairman — which tracks for the man who once said, “I will keep working until about five years after I die (1).”
Buffett has also retained some ownership of Berkshire, though all his shares will go to philanthropy over the decade or so following his passing. And since the Oracle of Omaha is renowned for generating oversized returns, those shares are worth a pretty penny.
From 1965 to 2025, his company delivered compounded annual gains of 19.7%, substantially outperforming the S&P 500’s 10.5% average annual return during that 60-year period. Today, Berkshire Hathaway’s cash and U.S. Treasury holdings exceed $370 billion (2).
And Buffett believes he could once again build massive wealth by starting relatively small.
In 1999, he told Bloomberg Businessweek, “The highest rates of return I’ve ever achieved were in the 1950s. I killed the Dow. You ought to see the numbers,” he said (3).
And he was confident that he could do it again, stating, “I think I could make you 50% a year on $1 million. No, I know I could. I guarantee that.”
Twenty-six years later, that confidence hasn’t been shaken. Here’s how Buffett would do it.
Moody’s Manuals were a series of publications by the financial services company Moody’s on publicly traded stocks. These texts provided detailed information on various industries, companies and securities.
“I found all kinds of interesting things when I was 20 or 21,” Buffett said at Berkshire’s annual shareholders meeting in 2024 (4).
He was able to acquire extensive knowledge of how different industries and companies functioned, even little-known ones, thanks to his dedicated research. He believes this type of behavior can provide an edge.
“I don’t know what the equivalent of Moody’s Manuals or anything would be now, but I would try and know everything about everything small, and I would find something,” he said.