Founder of Japan's SoftBank, Masayoshi Son, invested in Bitcoin ($BTC) at the 2017 bull market hight, only to devest in early 2018 for $130 million in profit losses according to the Wall Street Journal. Son invested in Bitcoin via advice from Fortress Investment's Peter Briger whose company bought Bitcoin in 2013. Son's net worth still grew by 54% last year regardless of the hit.