Exchange group's 'Do No Harm' approach proposes modifying Reg NMS.
Exec says exchange group says is going all-in on a customer-first approach.
Cantor electronic traders note that deep liquidity at certain times can facilitate block order executions.
The exchange group announced the acquisition of EuroCCP last month.
Regulatory order signals a dilution in exchange voting power.
The Commission votes to take a CAT-like approach to SIP modernization.
Price volatility is significantly lower after the use of a circuit breaker.
Equities ETFs listed in Europe gathered $36.6bn last year.
Aim is to shed light on the complexity of European market structure.