Phrases & IdiomsPhrase guide

Listed Option

Listed Option is a current Regulation NMS defined term. This guide preserves the specific U.S. securities-rule scope instead of substituting an ordinary-language meaning.

Quick answer

Under Regulation NMS, a listed option is any option traded on a registered national securities exchange or automated facility of a national securities association.

Key details

Canonical FormListed Option
Core MeaningUnder Regulation NMS, a listed option is any option traded on a registered national securities exchange or automated facility of a national securities association.

Further guidance

History Boundary

This page reflects the current reviewed 17 CFR § 242.600 definition and should be rechecked if Regulation NMS is amended.

Meaning

Section 242.600 defines the term by where the option is traded: a registered national securities exchange or an automated facility of a national securities association.

Usage Boundary

Keep the U.S. Regulation NMS scope and do not generalize the defined term to every option contract in every market.

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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