What is 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.