Found on the CBOE, the OBO maintains a book of public orders for future execution.
An employee of certain exchanges who executes limit orders on behalf of the membership.
The exchange employee in charge of keeping a book of public limit orders on exchanges utilizing the "maker-maker" system, as opposed to the "specialist system", of executing orders. See also Market-Maker and Specialist.
An order book official is an employee of an options exchange and performs all the duties of a board broker. He is compensated by salary paid by the exchange.