Go big or go home. That’s the motto of one mysterious investor who put his chips on the table, buying close to $400m of the No.1 digital currency, bitcoin, MarketWatch reports.

The purchase comes as cryptocurrencies are making a comeback after a dreadful start to 2018. Major digital currencies lost as much as 50% to start the year as growing regulation and security fears crippled the market, seeing traders bail on their positions.