Glossary term
Consolidated Tape Association (CTA) Plan
The CTA Plan governs the collection, processing, and dissemination of consolidated trade and quote data for Network A and Network B securities.
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What Is the Consolidated Tape Association (CTA) Plan?
The Consolidated Tape Association Plan, often called the CTA Plan, governs the collection, processing, and dissemination of consolidated trade and quote data for Network A and Network B securities. It supports the public market data feeds that many investors and professionals use to see real-time trades and quotes.
The CTA oversees data for securities listed on the New York Stock Exchange and other Network A and Network B venues. Its systems include the Consolidated Tape System for trades and the Consolidated Quote System for quotes.
Key Takeaways
- The CTA Plan is a national market system plan for consolidated equity market data.
- It governs trade and quote data for Network A and Network B securities.
- CTS disseminates last-sale trade data, while CQS disseminates quote data.
- The plan participants include exchanges and FINRA.
- The plan supports transparency, regulation, best execution, and public market data access.
How the CTA Plan Works
Market centers send trade and quote data to a central consolidator. The data is processed into CTS and CQS feeds and distributed to subscribers such as brokerages, data vendors, trading firms, and other market users.
The plan operates under SEC-approved national market system rules. Participants and administrators handle governance, system performance, pricing, technical specifications, and changes to the feeds.
Where It Fits in Market Data
Component | Role |
|---|---|
CTA Plan | Governance framework for Network A and B consolidated data. |
CTS | Disseminates last-sale trade information. |
CQS | Disseminates quote information. |
SIP | Processes and consolidates market data for public feeds. |
Practical Interpretation
The CTA Plan is mostly invisible to ordinary investors, but it affects the quotes and trade prints they see through brokerage apps and market-data vendors. It also matters to brokers and regulators because consolidated data is tied to best execution, Regulation NMS compliance, LULD processing, and market transparency.
The plan is also part of a broader policy debate about market data governance, fees, latency, odd-lot information, and the relationship between public consolidated feeds and exchange proprietary feeds.
Governance and Market Access
The CTA Plan matters because consolidated data is not just a commercial feed. It is part of the national market system framework. Decisions about fees, specifications, latency, odd-lot information, and governance affect how investors, brokers, vendors, and regulators see the market.
The plan also sits alongside other market-data arrangements, including Nasdaq-listed security data handled through the UTP framework. A reader does not need to memorize every plan boundary, but the key distinction is that different securities and feeds can fall under different consolidated-data plans.
The Bottom Line
The CTA Plan is a core governance structure behind U.S. consolidated equity market data. It helps turn separate venue messages into trade and quote feeds that support a common view of the market.