Securities Industry Automation Corporation

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The Securities Industry Automation Corporation (SIAC) is a subsidiary of the NYSE Euronext. Its purpose is to provide technical services for the exchanges themselves, members and other financial institutions. In this role, SIAC provides the computers and other systems required to run the exchanges. It also owns communication lines and hardware to provide real-time quotes and transaction information to all market participants from the Consolidated Tape/Ticker System (CTS), Consolidated Quotation System (CQS), and Options Price Reporting Authority (OPRA). [1]

NYSE Euronext, Inc. was a Euro-American multinational financial services corporation that operated multiple securities exchanges, including the New York Stock Exchange, Euronext and NYSE Arca. NYSE merged with Archipelago Holdings on March 7, 2006, forming NYSE Group, Inc. On April 4, 2007, NYSE Group, Inc. merged with Euronext N.V. to form the first global equities exchange, with its headquarters in Lower Manhattan. The corporation was then acquired by IntercontinentalExchange, which subsequently spun off Euronext.

The Consolidated Tape System (CTS) is the electronic service, introduced in April 1976, that provides last sale and trade data for issues admitted to dealings on the American Stock Exchange, New York Stock Exchange, and U.S. regional stock exchanges.

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. NASDAQ processes this data and provides it to its subscribers as the Composite Quotation Service. The initials CQS may be used either for the exchange system or the NASDAQ service.

Origins

SIAC was created on July 17, 1972 as a wholly owned subsidiary of the NYSE and American Stock Exchange. [2] The NYSE owned two thirds of SIAC, while the AMEX owned one third. On November 1, 2006, NYSE Euronext purchased AMEX’s stake for $40 million. [3]

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References

  1. "Securities Industry Automation Corporation". www.nyif.com.
  2. "Securities Industry Automation Corporation: Private Company Information - Bloomberg". www.bloomberg.com.
  3. "US Securities and Exchange Commission". www.sec.gov.