CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 78.1% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.
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What is Consolidated Quotation System?

Consolidated Quotation System

Consolidated Quotation System (CQS) is an electronic system that records quotation information for securities listed on major US stock exchanges.

Where have you heard about Consolidated Quotation System?

If you’re a NASDAQ subscriber you may have received data from the Consolidated Quotation System as part of the stock exchange’s Composite Quotation Service.

What you need to know about Consolidated Quotation System.

The system’s been in use since 1978 and records volume, bid, ask and size prices for each security and exchange. It’s used for stock traded on the American Stock Exchange, New York Stock Exchange, regional stock exchanges and by self-regulated companies in the third market.

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