In fact, some of Berkshire's biggest investments are looking to advance AI research, with clear business benefits if they can improve their algorithms and effectively implement new use cases for generative AI. As such, about 40% of Berkshire's $293 billion portfolio is invested in five companies pushing AI forward.

Thanks to an acquisition in 1998, the Oracle of Omaha has a bigger stake in the AI revolution than most investors realize.

Perhaps that’s one reason stocks are selling off globally this morning. While most indexes in Asia and Europe remain near their all-time highs, there is broad-based but mild selling in all of them.