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  2. Bid-ask spread: What it is and how it works - AOL

    www.aol.com/finance/bid-ask-spread-works...

    For example, if a stock price has a bid price of $100 and an ask price of $100.05, the bid-ask spread would be $0.05. The spread can also be expressed as a percentage of the ask price, which in ...

  3. Bid–ask spread - Wikipedia

    en.wikipedia.org/wiki/Bidask_spread

    The bidask spread (also bid–offer or bid/ask and buy/sell in the case of a market maker) is the difference between the prices quoted (either by a single market maker or in a limit order book) for an immediate sale and an immediate purchase for stocks, futures contracts, options, or currency pairs in some auction scenario.

  4. Valuation of options - Wikipedia

    en.wikipedia.org/wiki/Valuation_of_options

    In finance, a price (premium) is paid or received for purchasing or selling options.This article discusses the calculation of this premium in general. For further detail, see: Mathematical finance § Derivatives pricing: the Q world for discussion of the mathematics; Financial engineering for the implementation; as well as Financial modeling § Quantitative finance generally.

  5. Order book - Wikipedia

    en.wikipedia.org/wiki/Order_book

    The highest bid and the lowest ask are referred to as the top of the book. They are interesting because they signal the prevalent market and the bid and ask price that would be needed to get an order fulfilled. The difference between the highest bid and the lowest ask is called the bidask spread.

  6. What Is the Bid-Ask Spread? - AOL

    www.aol.com/news/bid-ask-spread-153504047.html

    Since buying and selling stock is a key component of investing, it’s important for investors to understand trading terminology — especially the term "bid-ask spread." If you have no idea what ...

  7. Price mechanism - Wikipedia

    en.wikipedia.org/wiki/Price_mechanism

    An example of a price mechanism uses announced bid and ask prices. Generally speaking, when two parties wish to engage in trade , the purchaser will announce a price he is willing to pay (the bid price ) and the seller will announce a price he is willing to accept (the ask price ).

  8. Market data - Wikipedia

    en.wikipedia.org/wiki/Market_data

    The market data for a particular instrument would include the identifier of the instrument and where it was traded such as the ticker symbol and exchange code plus the latest bid and ask price and the time of the last trade. It may also include other information such as volume traded, bid, and offer sizes and static data about the financial ...

  9. National best bid and offer - Wikipedia

    en.wikipedia.org/wiki/National_best_bid_and_offer

    For example, if the offer (or "ask") price for a stock is $25.00 for 100 shares of a stock on one exchange and $24.50 for 100 shares of the same stock on another exchange, and a broker has a customer who wishes to purchase 150 shares of the stock, then the broker is required to purchase all of the shares available at $24.50 on behalf of the ...