Thomas Peterffy took out a full-page ad in the Wall Street Journal in 2017 warning of the dangers that bitcoin futures posed to capital markets.
These days, the Hungarian-born billionaire is well versed in cryptospeak. Peterffy, worth $25 billion, said it’s prudent to have 2 per cent to 3 per cent of one’s personal wealth in cryptocurrencies, just in case fiat currency goes to “hell.”
