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Thu, Jul 10, 2025, 8:05 AM 8 min read
Warren Buffett, nicknamed the “Oracle of Omaha,” is quite possibly the greatest investor of all time. For decades, the CEO of Berkshire Hathaway has shown his ability to read Wall Street like a book. He also has a net worth of around $150 billion, making him the fifth richest person in the world.
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However, on some of his more questionable investments, Buffett said, “In most of these cases, I was wrong in my evaluation of the economic dynamics of the company or the industry in which it operates, and we are now paying the price for my misjudgments. At other times, I stumbled in evaluating either the fidelity or the ability of incumbent managers or ones I later appointed.”
Buffett is planning on retiring as CEO of Berkshire Hathaway at the end of 2025, and despite a few hiccups here and there, he leaves behind quite an investing legacy. So if you’re trying to sharpen your investing game, you might learn a lot from Buffett’s regrets that have led to his hard-earned wisdom.
Despite his investing prowess and great business acumen, Buffett has made a few mistakes over the years. Unlike some executives who try to pass the blame to an underling, Buffett owns his errors and assumes full responsibility when he fails to deliver to shareholders. Believe it or not, Buffett has said the dumbest stock he ever bought was — drum roll, please … Berkshire Hathaway.
Buffett explained that he first invested in Berkshire Hathaway in 1962 when it was a failing textile company. He thought he would make a profit when more mills closed, so he loaded up on the stock. Later, the firm tried to chisel Buffett out of more money. A spiteful Buffett bought control of the company, fired the manager and tried to keep the textile business running for another 20 years. Buffett estimated that this vindictive move cost him $200 billion.
The investment advice here is not to let emotions factor into your financial decisions.
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In a February 2017 interview with “Squawk Box,” Buffett was asked why he’d never bought stock in Amazon. He admitted he didn’t have a good answer.
“Obviously, I should have bought it long ago, because I admired it long ago,” he said. “But I didn’t understand the power of the model as I went along. And the price always seemed to more than reflect the power of the model at that time. So, it’s one I missed big time.”
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