In late October 2025, Mark Cuban spent some time on Bluesky (a social media platform for policy discussion), jumping into a heated conversation.
He posted a run of messages, often replying directly to other users who were floating ideas about curbing or eliminating billionaires through taxes, policy changes, and other financial pressure points.
According to reporting from Business Insider, Cuban did not dismiss the frustration behind those views outright. He acknowledged why some people feel that way.
At the same time, he pushed back against the idea that removing billionaires as a group would fix deeper economic problems. His responses aligned with defending the role wealth creators play, while still engaging directly with critics rather than ignoring them.
Mark Cuban on Billionaires and The Stock Market
Mark Cuban stated that “Billionaires will exist as long as stock markets exist. Should we get rid of the stock market?”
In a back-and-forth on the platform, one commenter called billionaire wealth a gross symbol of inequality. Cuban answered directly and without much ceremony.
He questioned why saving money should be treated as something shameful. His response steered the discussion toward personal freedom and how people choose to manage what they have earned.
Mark Cuban Warns That Targeting the Wealthy Could Break the Market
Best known both for his role on Shark Tank and his own vast fortune, Cuban shifted the conversation toward the broader impact on markets. He made it clear that stripping out the investments controlled by the richest players would do serious damage to the financial system.
After a Bluesky user referenced statistics showing that a small percentage of households own most U.S. stocks, Cuban built on that point. He used it to explain how deeply those holdings are woven into the market, warning that removing them would ripple far beyond the wealthy alone.
The Mavericks owner explained his point by saying, “Absolutely true. But that 90% is trillions and trillions of dollars, owned by everyone else. If you make the top 10% sell 90% of the market, how close to zero value do you think the ownership of the 90% goes? You would wipe out the savings of more than half the country.”
He added that, “You can take every penny that every billionaire has, and other than making a lot of people on here feel better, it wouldn’t pay for the interest of the federal deficit or single-payer [healthcare]… And doing so would probably tank the markets and cause a depression. But other than that, the rich would be tasty!”
Mark Cuban on Wealth, Luck, and Billionaire Success
This was hardly the first moment Cuban has been asked to weigh in on the ultra-wealthy. He has addressed questions about extreme wealth many times before. It has happened in interviews or public conversations, and his views on the subject are already well known to fans and followers.
Cuban has also been blunt when talking about how much chance plays into massive success. In a conversation with GQ magazine in 2023, he pushed back on the idea that billionaires could simply repeat their success story from scratch.
Anyone who claims that, he said, is not being honest. Luck and timing matter just as much as effort.
He pointed to his own path as proof. He happened to build skills in technology and networking just as the internet boom took off and stock valuations soared. Change his birth year by only a few years, he suggested, and his life could have unfolded very differently. In that case, he doubted anyone would be asking him these questions at all.
The Trade-Offs Behind Calls to Eliminate Billionaires
Taken together, Cuban’s comments show a willingness to engage rather than preach. He treats the anger around wealth as real, not imaginary, while still questioning easy answers.
The bottom line is less about defending billionaires. It is more about pushing people to think through the trade-offs. Mark’s words are a reminder that economic debates are rarely as simple as they sound online.
