According to Forbes, 19 billionaires have amassed their wealth using Bitcoin, including Changpeng Zhao, the CEO of Binance, who is estimated to be worth $6.5 billion. Other famous Bitcoin millionaires include FTX developer Sam Bankman-Fried, Coinbase CEO Brian Armstrong, and Bloq co-founder Matthew Roszak. The volatile nature of Bitcoin allows the number of billionaires to change. There were 40 Bitcoin millionaires in 2017, but just 12 after the 2018 Bitcoin meltdown. The number of Bitcoin billionaires is expected to fluctuate; however, it may increase as Bitcoin becomes more widely adopted.