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Full Transcript: Mark Cuban Interview on Diary Of A CEO – Oct 26, 2026

In this Diary of a CEO interview, billionaire entrepreneur Mark Cuban sits down with Steven Bartlett to share how he went from selling garbage bags door to door in Pittsburgh to building MicroSolutions, Broadcast.com, and the championship-winning Dallas Mavericks. Cuban explains why sales is the ultimate skill, why he believes AI is powerful but “not smart,” the risk of an AI-fueled debt bubble, and how family, mortality, and Cost Plus Drugs now shape his priorities. Read the full transcript of this interview below:

Business Is Like a Sport

STEVEN BARTLETT: (00:01:42 – 00:02:38) Mark, there are so many things happening in the world at the moment, and just specifically focusing in on business and technology and AI, one of the remarkable things I often reference about you is in spite of your success, you continue to self-educate.

And I’ve watched this in you over multiple cycles of technology. When crypto became a thing, when AI showed up, one of the first things I see on my timeline is Mark Cuban going back to school.

MARK CUBAN: (00:02:39 – 00:02:39) Yeah, for sure.

STEVEN BARTLETT: (00:02:40 – 00:02:41) What’s going on in your head at the moment?

MARK CUBAN: (00:02:42 – 00:03:03) To me, business is like a sport. And if you don’t keep on getting better and improving your game, you’re not going to be able to compete. And if you’re going to do anything with technology, media, whatever it may be, you better be ahead of the curve.

Otherwise, there’s going to be some kid in high school somewhere who’s going to kick your ass. And I want to be the one doing the ass kicking instead of getting their ass kicked.

Growing Up in a Blue-Collar Family in Pittsburgh

STEVEN BARTLETT: (00:03:03 – 00:03:13) What are the most sort of foundational things I need to know about your earliest context to understand the Mark Cuban that we’ve all grown to love and know from those Shark Tank and the businesses and the Dallas Mavs?

MARK CUBAN: (00:03:13 – 00:03:25) And I think I just grew up in a regular family and just had the piss and vinegar in me to always want to compete, like I said. And I was able to turn an idea into a business and be successful.

STEVEN BARTLETT: (00:03:25 – 00:03:27) And you had very formative parents by the sounds of things?

MARK CUBAN: (00:03:28 – 00:03:39) Yeah. I had a great upbringing. My dad did upholstery on cars, pure blue collar. My mom did odd jobs. Yeah, that’s my grandparents and my mom. My mom was only 20 when I was born.

STEVEN BARTLETT: (00:03:39 – 00:03:41) We’ve got some more wonderful photos here.

MARK CUBAN: (00:03:41 – 00:03:46) That’s my brother Brian, who’s the middle brother, and my dad. That’s when we lived on Meadowlark in Pittsburgh.

STEVEN BARTLETT: (00:03:47 – 00:03:49) Your father never made more than $40,000 in his life? Never.

MARK CUBAN: (00:03:50 – 00:04:05) No. He would be up at work and gone by the time we were leaving for school. He actually lost an eye when he was doing upholstery. There was a staple that broke when I was in 6th grade. But he just always was a grinder and just— yeah, amazing.

STEVEN BARTLETT: (00:04:06 – 00:04:08) I miss him. You miss him? I miss them both.

MARK CUBAN: (00:04:08 – 00:04:17) Everywhere we went, he always had friends. And if he didn’t know people there, they quickly became his friends. And I think that set a great example for my brothers and I more than anything.

STEVEN BARTLETT: (00:04:18 – 00:04:22) What are some of those sort of high-level lessons that you always reference come from him?

MARK CUBAN: (00:04:22 – 00:04:34) He would say things that, “You don’t live in the world you were born into.” “Today’s the youngest generation you’ll ever be,” that type of thing where, no matter what hustle I had going on, he was always supportive. Always.

Selling Baseball Cards and Garbage Bags

STEVEN BARTLETT: (00:04:34 – 00:04:37) And what did you think you were going to be when you were older at that age in those photos?

MARK CUBAN: (00:04:38 – 00:04:38) Oh, a baseball player.

STEVEN BARTLETT: (00:04:39 – 00:04:39) Really?

MARK CUBAN: (00:04:39 – 00:04:46) Yeah, I was good, but not good enough. But then after that, it became apparent that I was going to be a business guy.

STEVEN BARTLETT: (00:04:47 – 00:04:48) I think it was apparent from your—

MARK CUBAN: (00:04:49 – 00:04:53) Yeah, selling baseball cards when I was a kid. Oh my God, you got some good ones.

STEVEN BARTLETT: (00:04:53 – 00:04:55) You also started selling some of these, I hear, as well.

MARK CUBAN: (00:04:55 – 00:06:12) Yeah. So what I would do is— yeah. So when I was 9 or 10 years old, I would go to the local pharmacy and they would sell packs of baseball cards. And I would buy a bunch of them with my allowance. And then I would repackage them using the comics and everything from the paper. Buy these for— cost me a quarter. Buy them for $0.50. You’re guaranteed to get a Pittsburgh Pirate like Roberto Clemente or Willie Stargell. And I would sell them and make money. Then I’d go and turn it around and make more. And that literally was my first start in hustling.

And then one day my dad was playing poker with his buddies. They’d rotate to each other’s houses and he, they were at our house and I went in there to grab a donut and I was like, “Dad, I want a new pair of basketball shoes.” And he looks at my feet and he goes, “Those shoes work. When you have a job, you can buy whatever you want.” I’m like, “Dad, I’m 12.”

And one of his buddies who had to have been drunk was like, “Hey, I got something you can sell.