Nasdaq Security is a current federal securities-regulation defined term. This guide preserves the rule-specific definition and boundaries instead of replacing it with informal market shorthand.
ReviewedEvidence1 sourceSectionPhrases & Idioms
Quick answer
Regulation NMS defines a Nasdaq security as a registered security listed on The Nasdaq Stock Market, Inc.
Key details
Canonical FormNasdaq Security
Core MeaningUnder 17 CFR § 242.600, a Nasdaq security is any registered security listed on The Nasdaq Stock Market, Inc.
Further guidance
History Boundary
This page reflects the current reviewed federal regulation text and should be rechecked if the incorporated Regulation NMS or Regulation ATS definition changes.
Meaning
Under 17 CFR § 242.600, a Nasdaq security is any registered security listed on The Nasdaq Stock Market, Inc.
Usage Boundary
The defined term depends on registration and listing on the named market; it should not be generalized to every security traded or quoted through Nasdaq-related systems.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
Categorized by Security is a current Regulation NMS defined term. This guide keeps the meaning limited to the report-level separation of orders by each included NMS stock.
Corporate Debt Security is a current Regulation ATS defined term. This guide preserves the rule-specific meaning and boundary instead of replacing it with informal market shorthand.
Debt Security Under Regulation ATS is a current Regulation ATS defined term. This guide preserves the rule-specific meaning and boundary instead of replacing it with informal market shorthand.
Exchange-Traded Security is a current Regulation NMS defined term. This guide preserves the specific U.S. securities-rule scope instead of substituting an ordinary-language meaning.
Foreign Security Under Regulation AC is a current Regulation AC defined term. This guide preserves the rule-specific meaning and boundary instead of replacing it with informal market shorthand.
Listed Equity Security is a current Regulation NMS defined term. This guide preserves the specific U.S. securities-rule scope instead of substituting an ordinary-language meaning.
Regulation NMS uses “NMS security” as a defined market-structure term tied to securities covered by specified transaction-reporting arrangements. It should not be treated as a generic synonym for every security traded electronically.
A detailed Regulation NMS term defining which securities are subject securities for an exchange or association member under specified volume and election conditions. This page is limited to the detailed Regulation NMS definition. Whether a security qualifies depends on the regulated entity and the rule’s volume/election conditions; the ordinary phrase “subject security” should not be substituted for that test.
