Billionaire David Rubenstein told us why he paid $1.7 milliard for a ballgame team, and shared his 2 biggest investing mistakes

David Rubenstein explained why he bought a ballgame team, missed out on Amazon and Facebook, and would observe out betting on or against the AI boom.

The billionaire cofounder of Carlyle Group, among the world's biggest personal equity firms, said to Business Insider onward of the publish of his new publish "Inside the Owner's Box: Conversations on Power and Leadership in Sports."

In the book, Rubenstein tells the narrative of buying the Baltimore Orioles for about $1.7 milliard in 2024, and shares his interviews alongside chap squad owners, including Robert Kraft of the New England Patriots.

He told Business Insider that a few decades back, the ultrawealthy didn't desire the scrutiny that comes alongside owning a team. But changing attitudes and soaring valuations average they now accept "not lone can they have several fun, and benevolent of be a big agreement in the sports world, but they can really create prosperity on it."

Rubenstein stated he bought the Orioles since he hadn't done much on the philanthropy forefront for his hometown of Baltimore, so he wanted to "try to do item for the city."

Early mistakes

He additionally shared that his finest funding was apt "starting Carlyle alongside barely any money," during his gravest investing error was "walking distant from Facebook and Amazon at the beginning."

Rubenstein stated that Amazon's originator Jeff Bezos, gave him and his partners at Carlyle a interest in the e-commerce startup "at the extremely beginning." But they decided to market it following Amazon inventory collapsed during the dot-com bubble, definition they dumped a stance that would have been value "many billions of dollars today."

He additionally recalled that his then-future son-in-law was a classmate of Mark Zuckerberg, and asked Rubenstein to allocate whenever the Meta cofounder was seeking to lift $30,000 to initiate his website.

"I didn't obtain it seriously," Rubenstein said. Eduardo Saverin provided the first chief for Facebook instead, and now ranks among the world's 60 wealthiest group alongside a approximately $40 milliard net worth, per the Bloomberg Billionaires Index.

Navigating the AI race

Rubenstein told Business Insider that AI business valuations are "really, really high" and difficult to validate alongside earnings in several cases. But he pointed to Nvidia's latest blockbuster results as evidence that it's "not all pie in the sky."

"As we learned in the dot-com era, not all dot-com business survived and made money, and not all AI business volition last and create money," Rubenstein said.

"But the ones that are hot and are doing fine now, likely volition continue to do fine for several time," he added.

Rubenstein additionally acknowledged concerns concerning assured accounting, circular financing, hidden debt, and overinvestment in AI. Quoting Warren Buffett, he stated that "when the tide goes out, we'll see who's been swimming without a bathing suit."

However, Rubenstein additionally emphasized that markets have historically rebounded following crashes, definition the "biggest mistake group create whenever you have these bubbles bursting is marketing everything and getting out."

Instead of joining in the panic-selling, he said, "probably that's the period to clasp on and maybe buy more."