bitcoin

It’s been month after month of record-breaking, confounding growth for the cryptocurrency, accompanied by regular warnings from banks about bubble speculation.

Japan’s bitFlyer is expanding to the American market, even as U.S. banks remain wary of cryptocurrencies.

Bitcoin’s eight-fold surge in value this year is forcing Wall Street banks to balance clients’ interest in speculating on the cryptocurrency with executives’ skepticism about its future.

The incident will fuel the debate on Wall Street over whether digital coins are secure enough to enter the mainstream of finance.

Michael Lewis calls it a "pump-and-dump" scheme. Liz Ann Sonders says it's "the next kale." Should clients invest in cryptocurrencies?