Phrases & IdiomsPhrase guide

Self-Regulatory Organization

A Regulation NMS definition identifying a national securities exchange or national securities association as a self-regulatory organization.

Quick answer

For Regulation NMS, “self-regulatory organization” means a national securities exchange or a national securities association.

Key details

Canonical FormSelf-Regulatory Organization
Core MeaningA Regulation NMS definition identifying a national securities exchange or national securities association as a self-regulatory organization.

Further guidance

History Boundary

This guide states the Regulation NMS definition only; “self-regulatory organization” can have broader statutory and regulatory context elsewhere.

Meaning

Regulation NMS defines a self-regulatory organization as a national securities exchange or a national securities association.

Usage Boundary

This guide states the Regulation NMS definition only; “self-regulatory organization” can have broader statutory and regulatory context elsewhere.

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.

  1. 17 CFR § 242.600 — NMS security designation and definitions (opens in a new tab)Legal Information Institute, Cornell Law School · Current e-CFR text for Regulation NMS definitions, including average midpoint and spread metrics, protected quotation and trade-through terms.

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