thisisbrianly

No violation, the client trade was executed first and allocated to the account.

The manager was correct to ticket their trade separately.

Blocking is not appropriate in this case as "Pro" trades are executed separate from client trades.

Also the manager would most likely be required to complete Pre-clearance and obtain approval from a supervisor. This alone forces separation of trades as the ticket should match the terms of the approval( buy/ sell, price, quantity etc)