Mark Cuban is the richest TV-famous business personality in America — a fortune built on one perfectly timed internet-era exit, a basketball franchise bought low and sold high, and fifteen years as Shark Tank’s most active investor. As of mid-2026, estimates place his net worth between $6.0 and $6.5 billion.
Mark Cuban Net Worth: What the Sources Say
- $6.0 billion — Forbes (real-time profile, July 2026)
- $6.5 billion — Celebrity Net Worth (July 2026); Bloomberg has run as high as $7.8 billion
- Our take: we anchor on Forbes’ $6.0 billion. See our methodology.
Overview
Broadcast.com: The Exit That Made Everything Else Possible
Cuban co-founded Broadcast.com in 1995 and sold it to Yahoo in April 1999 for $5.7 billion in stock. What made the deal legendary was what came next: he hedged his locked-up Yahoo shares with a zero-cost collar — buying puts, selling calls — weeks before the dot-com bubble burst and Yahoo collapsed by roughly 95%. His protected proceeds are reported between $1.7 and $2.5 billion (Yahoo Finance); the trade is regularly cited among the best in Wall Street history.
The Mavericks: $285 Million In, $3.5 Billion Valuation Out
Cuban bought the Dallas Mavericks from Ross Perot Jr. in 2000 for $285 million and sold his majority stake to the Adelson and Dumont families in December 2023 at a $3.5 billion valuation — roughly $2 billion pretax for his share per Forbes — while keeping a 27% minority stake. In 2026 he publicly said he regrets the sale.
Shark Tank & Cost Plus Drugs
Across more than a decade on Shark Tank (his final episode aired May 2025), Cuban backed 85+ companies with over $22 million in on-show investments. His current focus is Cost Plus Drugs, the transparent-pricing pharmacy he co-founded in 2022 — selling medications at cost plus a flat 15% markup, now covering 2,200+ drugs with its own Dallas manufacturing facility.
Sources
- Forbes — Mark Cuban profile (accessed July 2026)
- Celebrity Net Worth — Mark Cuban Net Worth (July 2026)
- Fortune — NBA approves Mavericks sale (December 2023)
- Yahoo Finance — Cuban’s legendary Yahoo collar trade
- TheWrap — Cuban’s final Shark Tank episode (May 2025)
Related Net Worth Profiles
- Oprah Winfrey Net Worth — $3.4 billion
- Sara Blakely Net Worth — $1–1.4 billion
- Kevin O’Leary Net Worth — $400 million
- Daymond John Net Worth — $350 million
Browse our full Richest Business Figures 2026 ranking for more profiles and career-earnings breakdowns.
Who is richer than Mark Cuban?
A side-by-side comparison with other business profiles where reported estimates are available.
