Regulation
National Market System Plans
The Securities and Exchange Commission (SEC) requires that each participant in an effective National Market System Plan (NMS Plan) ensure that a current and complete version of the NMS Plan is posted on a central web site. Below are links to the central web sites that provide copies of each of the three NMS Plans in which FINRA participates. In addition, each of the web sites provides any proposed amendments to these plans that are pending with the SEC.
Regulation NMS Plan To Address Extraordinary Market Volatility
This plan governs the establishment, operation and administration of a market-wide limit up-limit down mechanism that is intended to address extraordinary market volatility in NMS stocks, as defined in Rule 600(b)(47) of Regulation NMS under the Exchange Act. The Plan sets forth market-wide limit up-limit down requirements designed to prevent trades in individual NMS Stocks from occurring outside of the specified price bands and also governs quotations in NMS stocks. These limit up-limit down requirements would be coupled with Trading Pauses, as defined in Section I(X) of the Plan, to accommodate more fundamental price moves.
http://www.sec.gov/rules/sro/nms/2013/34-68953.pdf
National Market System Plan for the Selection and Reservation of Securities Symbols (The Intermarket Symbol Reservation Authority, or “ISRA” Plan)
The ISRA Plan governs the establishment, operation and administration of a uniform system for the selection and reservation of securities symbols (the “Symbol Reservation System”). Self-regulatory organizations (SROs) that have joined the plan utilize this system to reserve one- to five-character root symbols, utilizing a web-based tool developed and maintained by the Options Clearing Corporation, the Plan Processor.
http://www.optionsclearing.com/clearing/industry-services/isra.jsp
Consolidated Tape Association Plan/Consolidated Quotation Plan (CTA/CQ Plans)
The CTA/CQ Plans governs the collection, processing, and distribution of quotation and transaction information for exchange-listed securities (excluding those securities listd on the Nasdaq Stock Exchange). The data reflected on the consolidated tape (Networks A and B) is derived from various market centers, including securities exchanges, FINRA, electronic communications networks (ECNs), and other broker-dealers. Under the CTA/CQ Plans, all U.S. exchanges and associations that quote and trade exchange-listed securities must provide their data to a centralized securities information processor (SIP) for data consolidation and dissemination.
Joint Self-Regulatory Organization Plan Governing the Collection, Consolidation, and Dissemination of Quotation and Transaction Information for Nasdaq-Listed Securities Traded on Exchanges on an Unlisted Trading Privilege Basis (OTC UTP Plan)
The OTC UTP Plan governs the collection, processing and distribution of quotation and transaction information for issues listed on the NASDAQ Stock Exchange. UTP data is derived from various market centers, including securities exchanges, FINRA, ECNs, and other broker-dealers. Under the OTC UTP Plan, all U.S. exchanges and associations that quote and trade NASDAQ-listed securities must provide their data to a centralized SIP for data consolidation and dissemination.