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The Consolidated Quotation System (CQS) is the electronic service that provides quotation information for stock traded on the American Stock Exchange, New York Stock Exchange, and other regional stock exchanges in the United States and also includes issues traded by FINRA member firms in the third market.
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 ...
The rule changes were subsequently challenged by Nasdaq, the New York Stock Exchange, and other exchange groups in the courts before finally being upheld by the D.C. Circuit Court. [8] In September 2023, following the DC circuit's ruling, the SEC issued an order directing the exchange groups to submit a new NMS plan, referred to as the CT Plan. [9]
All the major market averages finished higher for the week, with the S&P 500 gaining 2.5%, the Dow Jones Industrial average ending up 1.8% and the Nasdaq climbing north of 4%.
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.
All three major indices closed with gains for the fourth straight trading week, setting up November as the best month for the Dow since October 2022. The Nasdaq and S&P 500 are on track for their ...
Alternative display facility (ADF) is an equity trading facility created in the United States by the Financial Industry Regulatory Authority (FINRA), a self-regulatory organization (SRO). The ADF is an alternative to the exchange for publishing quotations and for comparing and reporting trades.
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