Which US regulator is in charge of monitoring cryptocurrencies? That issue came to the fore as the Commodity Futures Trading Commission is apparently investigating a June 21 “flash crash” in the cryptocurrency Ether, according to a Bloomberg report. A top regulatory lawyer doesn’t see the regulator jurisdiction issue as a binary outcome, however. The CFTC is formally asking Coinbase's GDAX, a popular digital-coin exchange, to explain how a cryptocurrency on the exchange could fall from $317.81 to $0.10 in a matter of milliseconds before recovering, Bloomberg reported, citing two people familiar with the matter.
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After the crash, GDAX reimbursed customers who lost money when an unidentified market participant placed...


