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by kenned3 1761 days ago
yes, they do, It is called "CAT" https://www.catnmsplan.com/

Broker/dealers send order data to the regulators daily.

It isnt 'wrong', you agreed to this when you opened your account,and the broker/dealers are REQUIRED to provide this as it is a "market rule".

EDIT : replace "trade" with "order"...