HONG KONG, HONG KONG - JUNE 15: As a visual representation of the digital Cryptocurrency, Ethereum (ETH) and Bitcoin (BTC), on June 15, 2018 in Hong Kong, Hong Kong. (Photo by S3studio/Getty Images)
A bitcoin automated teller machine (ATM) stands at the Coin Trader bitcoin retail store in Tokyo, Japan, on Wednesday, Aug. 30, 2017. Stock of Bitcoin, the best-known digital currency, has surged 358 percent this year. While staggering, lesser-known competitors have seen even bigger gains, such as the more than 4,000 percent increase for ethereum. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images
A bitcoin trading page is displayed on a computer monitor via software for trading virtual currencies in Tokyo, Japan, on Wednesday, Aug. 30, 2017. Stock of Bitcoin, the best-known digital currency, has surged 358 percent this year. While staggering, lesser-known competitors have seen even bigger gains, such as the more than 4,000 percent increase for ethereum. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images
The symbols for Bitcoin and Ethereum cryptocurrency sit displayed on a screen during the Crypto Investor Show in London, U.K., on Saturday, March 10, 2018. The meeting is the largest crypto and blockchain event for investors in the U.K. Photographer: Mary Turner/Bloomberg via Getty Images
