The bitcoin market is about to get a lot faster. Coinbase Inc., which operates the largest U.S. cryptocurrency exchange, said on Tuesday that it would upgrade its systems with services that cater to ultrafast traders. The upgrade, planned for later this year, will make Coinbase one of the first bitcoin exchanges to welcome the controversial business of high-speed trading. High-frequency...

Source: Wall Street Journal May 15, 2018 12:00 UTC