The executive — who has a net worth of about US$53 billion ($71.25 billion), according to the Bloomberg Billionaires Index — said he is “sort of scared” of crypto because of its price fluctuations. “It doesn’t have any underlying value. The only value it has is the same as the paper dollar, which is nothing,” he said.
Thomas Peterffy, the billionaire founder of retail brokerage Interactive Brokers Group, said investors should own some Bitcoin though limit their holdings given the asset’s volatility.
“I would recommend that people put maybe 2% to 3% of their net worth into Bitcoin,” he said Wednesday in a Bloomberg Television interview. “We for example will not allow anyone to invest more than 10% of their assets into Bitcoin because I think that would be very dangerous.”

