Definitions for "Closing Sale"
A transaction in which a position is sold to cancel a purchased position already established.
A comparison of the details of a transaction between brokers prior to settlement; final exchange of securities for cash on delivery.
A transaction where an investor who initially bought an option intends to liquidate his or her purchased position by selling (in a "closing sale transaction") an option with the same terms as the one he or she purchased. This transaction will reduce the open interest for that option.