Barclays did not seek 'to distinguish toxic order flow from instances in which prices merely happened to move in favor of the customer,' said the NYFDS.
Two-year investigation finds that Promontory 'exhibited a lack of independent judgment' in assessing allegations against a U.K.-based bank.
Proponents of the virtual currency are dividing into two camps, one opposed to the rules and one in favor.
State banking regulator says virtual currency licenses would prevent misconduct but not derail the fledgling technology.
