David Rubenstein, the billionaire cofounder of the Carlyle Group, recently opened up about the intersection of passion and profit in his latest discussions surrounding his new book, Inside the Owner’s Box. Rubenstein detailed his decision to purchase the Baltimore Orioles for approximately 1.7 billion dollars in 2024, noting that owning a sports franchise has evolved into both a status symbol and a viable business venture. While many ultrawealthy individuals once avoided the public scrutiny associated with team ownership, Rubenstein suggests that skyrocketing valuations have changed the game. For him personally, the move was also rooted in a desire to give back to his hometown through local philanthropy.

Despite his immense success in private equity, Rubenstein admitted that even those at the top leave significant money on the table. He identified two of his most painful investing misses as walking away from Amazon and Facebook during their infancy. In one instance, he sold off an early stake in Amazon after its stock dipped during the dot-com crash, missing out on what would eventually become a multi-billion dollar windfall. Even more humbling was his admission that he failed to take Mark Zuckerberg seriously when offered an early opportunity to invest just 30,000 dollars into what would become Meta.

Turning his attention toward current market trends, Rubenstein expressed a cautious optimism regarding the artificial intelligence boom. While he acknowledges that many AI valuations are currently stretched thin and difficult to justify based on actual earnings, he believes companies like Nvidia prove that there is real substance behind some of the hype. Drawing parallels to the late nineties, he warned that not every player in the space will survive the inevitable shakeout, though he maintains that those showing strong performance now will likely remain dominant for years to come.

When discussing how to handle potential volatility or bubbles in tech stocks, Rubenstein echoed a sentiment common among seasoned investors: avoid panic selling. Citing Warren Buffett’s famous analogy about seeing who is swimming naked when the tide goes out, he cautioned against aggressive accounting and circular financing within the industry. However, rather than exiting the market entirely during a crash, Rubenstein argues that such moments are often the best times to hold firm or even increase your positions as markets historically rebound stronger than before.