Invest Like a Shark: Mark Cuban’s Strategies for Building Wealth

Cuban has crossed philosophical paths with Warren Buffett more than once when it comes to investing fundamentals. Like Buffett, Cuban warns against investing in things you don’t understand.

In 2010, Cuban wrote on his blog, “If you don’t fully understand the risks of an investment you are contemplating, it’s okay to do nothing.”

In 2016, he confirmed that position by stating even more emphatically, “No. 1 rule of investing: When you don’t know what to do, do nothing.”

More recently, in 2020, he told CNBC Make It that he still follows this rule.