An automated system and method for trading option instruments on an automated exchange comprising a participant system for communicating with an automated exchange system. The disclosed system and method allows a market professional such as a market maker to inactivate the quotes in instruments for a related product while the market maker's quoting engine continues to update the quotes. Also disclosed is a system and method for reducing load on a exchange network in recalculating a best bid and offer price. Disclosed herein is a system and method for maintaining control over professional quotes for the purchase and sale of option instruments for a product in an exchange system.