What does DROIT D'EXECUTION mean?

DROIT D'EXECUTION meaning in Law Dictionary

the proper of a stockbroker to offer the securities bought by him for account of a customer, if second doesnot accept distribution thereof. Similar appearance can also be applied to the sale by astockbroker of securities deposited with him by his customer, being guaranty thepayment of operations which is why the latter gave guidelines. Arg. Fr. Merc. Law,557.