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  2. Financial quote - Wikipedia

    en.wikipedia.org/wiki/Financial_quote

    For instance, if a trader submits a limit order to buy 1,000 shares of MSFT at $28.00, this order will appear in a market maker for MSFT's book with a bid of $28.00 and a bid size of 1000. The difference between the bid and ask price is known as the bidask spread.

  3. 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 ...

  4. Market maker - Wikipedia

    en.wikipedia.org/wiki/Market_maker

    A market maker or liquidity provider is a company or an individual that quotes both a buy and a sell price in a tradable asset held in inventory, hoping to make a profit on the difference, which is called the bidask spread or turn. [1] This stabilizes the market, reducing price variation by setting a trading price range for the asset.

  5. After-hours trading: What it is and how it works - AOL

    www.aol.com/finance/hours-trading-works...

    Bid-ask spread and after-hours trading. During the normal trading day, brokers must ensure customers the best price known as the National Best Bid and Offer (NBBO), but this requirement doesn’t ...

  6. Stock market data systems - Wikipedia

    en.wikipedia.org/wiki/Stock_market_data_systems

    The last sale ticker contained every trade with both price and volume for each trade. The bid-ask ticker contained only the two prices and no size. The volume of data on the last sale ticker was therefore much greater than on the bid-ask ticker. Because of this, on high volume days the last sale ticker would run as much as fifteen minutes ...

  7. Order (exchange) - Wikipedia

    en.wikipedia.org/wiki/Order_(exchange)

    The values of the bid and offer prices used in this calculation may be either a local or national best bid and offer. They are also called Peg-to-Midpoint. Mid-price peg order types are commonly supported on alternative trading systems and dark pools, where they enable market participants to trade whereby each pays half of the bid–offer ...

  8. 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.

  9. Double auction - Wikipedia

    en.wikipedia.org/wiki/Double_auction

    A double auction is a process of buying and selling goods with multiple sellers and multiple buyers. [1] Potential buyers submit their bids and potential sellers submit their ask prices to the market institution, and then the market institution chooses some price p that clears the market: all the sellers who asked less than p sell and all buyers who bid more than p buy at this price p.