Order Book Official

DEFINITION of 'Order Book Official'

A trading floor participant responsible for maintaining a list of public market or limit orders of a specific option class using the "market-marker" system of executing orders.

BREAKING DOWN 'Order Book Official'

The term can also sometimes be used in reference to a current list of public market or limit orders for a given exchange. For example, a list of specific public orders awaiting execution on the Chicago Board Options Exchange could be referred to as the "order book official".

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RELATED FAQS
  1. What's the difference between a market order and a limit order?

    Buy and sell trades with market orders at the present stock price and execute limit orders if the stock price falls within ... Read Answer >>
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    Learn how a limit order is placed, the types of stocks it is most useful for and the specifications placed with it to suit ... Read Answer >>
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