Japan a global leader in cryptocurrency investment

As of Jan. 15, yen accounts for 56.2 percent of bitcoin, or BTC, the most popular cryptocurrency, according to coinhills.com. Yen is followed by U.S. dollars at 28.4 percent, while all others account for 15.4 percent. Chinese yuan used to account for the largest until January 2017, but dropped after the state imposed strict restrictions on cryptocurrency trading.