Buffett and Munger Would Know How to Invest in AI

We are all Warren Buffett and Charlie Munger now.

I think of the dynamic duo often as artificial intelligence advances, takes over markets and mints new fortunes. I hark back to the 1990s and imagine the two watching in amazement as the internet emerged, creating a new world, language and vast riches.

Many investors are reliving that experience with AI. Buffett, who stepped down as chairman of Berkshire Hathaway Inc. earlier this year, and Munger, who died in 2023, won’t be active examples, obviously. But there are useful lessons in the way they weathered the previous tech revolution — and in how their decisions turned out all these years later.

The problem for Buffett and Munger was that they were in the business of beating the market, which was nearly impossible in the late 1990s without investing in technology and internet-related stocks specifically. But like most investors, they weren’t coders or engineers. They didn’t fully understand what was going on and where it was going, as they readily admitted. So they passed on the internet, and predictably, the market and tech sector ran circles around Berkshire’s stock during the dot-com boom.

What they did instead was stick to their strategy of investing in stable, highly profitable businesses. That all but eliminated internet companies in favor of stalwarts such as American Express, Coca-Cola, Freddie Mac, Geico, Gillette and Wells Fargo. Those companies weren’t cheap — quality businesses rarely are. As a group, Berkshire’s stocks traded at a valuation about 50% higher than that of the S&P 500 Index, but they were also twice as profitable. That strategy is now known as quality investing.

Buffett and Munger’s devotion to quality looked like a masterstroke when the internet bubble burst in 2000. Amazingly, while the S&P 500 was cut in half in the ensuing bear market, and the tech-heavy Nasdaq 100 Index tumbled well more than that, Berkshire made money. Berkshire’s performance was all the more astonishing given that the MSCI USA Quality Index also declined during that time. Buffett and Munger knew how to pick ’em.

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