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Warren Buffett Delivers Urgent 8-Word Warning for Investors

When Warren Buffett speaks on investing and the stock market, people listen. And for good reason. The legendary CEO of Berkshire Hathaway has a jaw-dropping net worth of more than $143 billion.

According to Forbes, his investing savvy has earned him the nickname the "Oracle of Omaha," as Warren Buffett "is one of the most successful investors of all time." And so people paid attention when, on June 10, 2026, he delivered a stark 8-word warning about the stock market.

What did Buffett say? "The casino has gotten very attractive to people," he said.

Warren Buffett's Warning Referred to Short-Term Buying

Buffett made his comments in an appearance on CNBC, and he was comparing casino gambling to short-term buying, Yahoo Finance reported. In other words, he doesn't think that's a good idea.

"[W]e've never had people in a more gambling mood than now," he said, according to Yahoo Finance. "But that doesn't mean that investing is terrible. It does mean that prices for an awful lot of things will look very silly."

According to The Motley Fool, playing in the stock market has been a smart bet. "Over the past 30 years, the S&P 500 index has generated a total return of 1,770% (as of June 5)," the site reported.

Warren Buffett Has Offered Advice for 1st Time Stock Buyers

According to The Motley Fool, Buffett has offered advice to first-time stock buyers. "He basically recommends buying a low-cost S&P 500 index fund," according to The Motley Fool, which noted, "Active management strategies generally have a bad track record."

According to 247WallSt.com, "Berkshire's operating earnings rose 18% to $11.35 billion in Q1 2026, boosted by a robust 28.5% jump in insurance underwriting profit to $1.72 billion."

AOL.com noted that Buffett's favorite "stock market indicator" is "now flashing a major warning sign amid the AI stock frenzy." The indicator is in the "significantly overvalued" zone, AOL reported.

Warren Buffett Suggests Something Called the 90/10 Rule

According to Investopedia, Buffett has advanced a suggestion called the 90/10 rule for investing.

Warren Buffett's 90/10 strategy "involves allocating 90% of assets to a low-cost S&P 500 index fund and 10% to short-term government bonds," that site explains.

In fact, Buffett believes so strongly in this strategy that he wants his advisors to invest the money he's leaving his wife in his will by using the same approach. That being: "90% in a 'very low-cost' S&P 500 index fund and 10% in short-term government bonds," Investopedia reported.

Other advice from Buffett includes the tip, "Do not save what is left after spending, but spend what is left after saving" and living beneath your means. In fact, Buffett still lives in a home that he purchased in 1958. He also suggested finding a way to earn passive income, suggesting, "If you don't find a way to make money while you sleep, you will work until you die," according to Bayntree Wealth Advisors.

That site also explained that "Warren only invests in stocks that he plans to hold for a long time. He is the definition of investing for the long term and doesn't believe in short-term trading."

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This story was originally published by Men's Journal on Jun 10, 2026, where it first appeared in the News section. Add Men's Journal as a Preferred Source by clicking here.

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This story was originally published June 10, 2026 at 1:56 PM.

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