In 1999, Yahoo acquired Broadcast.com in a deal valued at $5.7 billion, turning Cuban’s early bet on online media into one of the defining transactions of the dot-com era, according to a Forbes report. Mark Cuban ‘s business career has taken him from an internet broadcasting venture that sold for billions of dollars to a pharmaceutical company built around a very different proposition. More than two decades later, he entered the prescription medicine market with Cost Plus Drugs, an online business intended to make the cost of medicines easier to understand and, in many cases, lower. The two ventures operate in very different industries, but both reflect Cuban’s willingness to challenge established ways of doing business.
Broadcast.com began in 1995, when Cuban and fellow Indiana University graduate Todd Wagner set up a business to deliver audio and video over the internet. Yahoo, already expanding beyond its original role as a web directory, agreed to acquire Broadcast.com in 1999 in a transaction worth approximately $5.7 billion. Forbes’ profile, updated in September 2026, lists his estimated real-time net worth at $6.8 billion as of 22 October 2026. The publication also reports that he sold a 58% stake in the Mavericks in December 2023 for an estimated $2 billion before tax, while retaining a minority interest in the team.
Cuban and Wagner saw an opportunity to distribute content to people who wanted access to broadcasts beyond the reach of conventional radio and television. Their business attracted growing attention as internet companies became increasingly valuable during the late 1990s. The deal was completed largely through shares, reflecting the extraordinary valuations attached to internet businesses at the time. Broadcast.com had moved from a relatively young online venture to a company acquired for billions within four years of its founding. Cuban did not remain focused on online media after the Yahoo transaction. Over the years, his business interests extended into professional sport, entertainment and technology. His wealth has continued to reflect a range of holdings rather than a single business.
The transaction also placed Cuban among the entrepreneurs who benefited substantially from the expansion of internet investment before the dot-com market collapsed. The idea developed during a period when streaming media was still unfamiliar to most households and online connections were far less capable than they are today.