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  2. Consolidated Tape Association - Wikipedia

    en.wikipedia.org/wiki/Consolidated_Tape_Association

    For every quote message received from a market center, CQS calculates a National Best Bid and Offer (NBBO) based on a price, size and time priority scheme. If the quote is a NASDAQ market maker quote, CQS also calculates a NASDAQ BBO. CQS disseminates the Market center's root quote with an appendage that includes the National and NASDAQ BBOs ...

  3. Equinix - Wikipedia

    en.wikipedia.org/wiki/Equinix

    The company is a leader in global colocation data center market share, [4] with 260 data centers in 33 countries on five continents. [ 2 ] [ 5 ] Equinix is listed on the Nasdaq stock exchange under the ticker symbol EQIX, and as of December 2023 [update] , they employ approximately 13,000 people worldwide. [ 2 ]

  4. Unlisted Trading Privileges - Wikipedia

    en.wikipedia.org/wiki/Unlisted_Trading_Privileges

    The securities listed on Nasdaq can be quoted and traded from any US exchange. Trades and quotes on these securities are distributed on two separate feeds, the UTP Quotation Data Feed (UQDF) and the UTP Trade Data Feed (UTDF). UQDF provides traders a direct view of an NBBO. These feeds are considered level 1 or the top-of-book.

  5. Securities information processor - Wikipedia

    en.wikipedia.org/wiki/Securities_Information...

    The participant exchanges and market centers that send trade and quote data to the UTP Plan's SIP operate under a service agreement with Nasdaq. [ 13 ] Since the SIPs are run by for-profit exchange groups that also offer their own proprietary market data products that compete with the SIPs, [ 14 ] brokers and trading firms have complained that ...

  6. Nasdaq, Inc. - Wikipedia

    en.wikipedia.org/wiki/Nasdaq,_Inc.

    Nasdaq, Inc. is an American multinational financial services corporation that owns and operates three stock exchanges in the United States: the namesake Nasdaq stock exchange, the Philadelphia Stock Exchange, and the Boston Stock Exchange, and seven European stock exchanges: Nasdaq Copenhagen, Nasdaq Helsinki, Nasdaq Iceland, Nasdaq Riga, Nasdaq Stockholm, Nasdaq Tallinn, and Nasdaq Vilnius.

  7. Nasdaq - Wikipedia

    en.wikipedia.org/wiki/Nasdaq

    The Nasdaq Stock Market (/ ˈ n æ z d æ k / ⓘ; National Association of Securities Dealers Automated Quotations) is an American stock exchange based in New York City.It is the most active stock trading venue in the U.S. by volume, [3] and ranked second on the list of stock exchanges by market capitalization of shares traded, behind the New York Stock Exchange. [4]

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