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".

  1. Depth of Market (DOM)

    A measure of the number of open buy and sell orders for a security ...
  2. Exchange-Traded Option

    An option traded on a regulated exchange where the terms of each ...
  3. Stock Option

    A privilege, sold by one party to another, that gives the buyer ...
  4. Chicago Board Options Exchange ...

    Founded in 1973, the CBOE is an exchange that focuses on options ...
  5. Market Maker

    A broker-dealer firm that accepts the risk of holding a certain ...
  6. Flexible Exchange Option - FLEX

    A non-standard option which can be customized, allowing both ...
Related Articles
  1. Options & Futures

    Getting To Know The Stock Exchanges

    Here are the answers to all the questions you have about stock exchanges but are too afraid to ask!
  2. Options & Futures

    The NYSE And Nasdaq: How They Work

    Learn some of the important differences in the way these exchanges operate and the securities that trade on them.
  3. Credit & Loans

    Pre-Qualified Vs. Pre-Approved - What's The Difference?

    These terms may sound the same, but they mean very different things for homebuyers.
  4. Options & Futures

    Cyclical Versus Non-Cyclical Stocks

    Investing during an economic downturn simply means changing your focus. Discover the benefits of defensive stocks.
  5. Insurance

    Cashing in Your Life Insurance Policy

    Tough times call for desperate measures, but is raiding your life insurance policy even worth considering?
  6. Fundamental Analysis

    Using Decision Trees In Finance

    A decision tree provides a comprehensive framework to review the alternative scenarios and consequences a decision may lead to.
  7. Options & Futures

    Understanding The Escrow Process

    Learn the 10 steps that lead up to closing the deal on your new home and taking possession.
  8. Options & Futures

    Terrorism's Effects on Wall Street

    Terrorist activity tends to have a negative impact on the markets, but just how much? Find out how to take cover.
  9. Mutual Funds & ETFs

    Scared By ETF Risks? Try Hegding With ETF Options

    With more ETFs to trade, the risks associated with these investments have grown. To mitigate these risks, ETF options are a hedging strategy for traders.
  10. Mutual Funds & ETFs

    ETF Options Vs Index Options

    Investors have much to consider when they’re deciding between ETF and index options. Here's help in making the decision.
  1. How do hedge funds use equity options?

    With the growth in the size and number of hedge funds over the past decade, the interest in how these funds go about generating ... Read Full Answer >>
  2. Can mutual funds invest in options and futures?

    Mutual funds invest in not only stocks and fixed-income securities but also options and futures. There exists a separate ... Read Full Answer >>
  3. How does a forward contract differ from a call option?

    Forward contracts and call options are different financial instruments that allow two parties to purchase or sell assets ... Read Full Answer >>
  4. How can an investor profit from a fall in the utilities sector?

    The utilities sector exhibits a high degree of stability compared to the broader market. This makes it best-suited for buy-and-hold ... Read Full Answer >>
  5. What are the main risks associated with trading derivatives?

    The primary risks associated with trading derivatives are market, counterparty, liquidity and interconnection risks. Derivatives ... Read Full Answer >>
  6. What is the difference between derivatives and options?

    Options are one category of derivatives. Other types of derivatives include futures contracts, swaps and forward contracts. ... Read Full Answer >>

You May Also Like

Hot Definitions
  1. Bar Chart

    A style of chart used by some technical analysts, on which, as illustrated below, the top of the vertical line indicates ...
  2. Bullish Engulfing Pattern

    A chart pattern that forms when a small black candlestick is followed by a large white candlestick that completely eclipses ...
  3. Cyber Monday

    An expression used in online retailing to describe the Monday following U.S. Thanksgiving weekend. Cyber Monday is generally ...
  4. Take A Bath

    A slang term referring to the situation of an investor who has experienced a large loss from an investment or speculative ...
Trading Center