Sponsor is a current Regulation NMS defined term. This guide preserves the rule-specific definition and boundaries instead of replacing it with informal market shorthand.
ReviewedEvidence1 sourceSectionPhrases & Idioms
Quick answer
For a national market system plan, Regulation NMS defines a sponsor as a signatory self-regulatory organization that agrees to follow the plan.
Key details
Canonical FormSponsor
Core MeaningUnder 17 CFR § 242.600, a sponsor, when used with a national market system plan, is a self-regulatory organization that is a signatory to the plan and has agreed to act in accordance with its terms.
Further guidance
History Boundary
This page reflects the current reviewed 17 CFR § 242.600 definition and should be rechecked if Regulation NMS changes.
Meaning
Under 17 CFR § 242.600, a sponsor, when used with a national market system plan, is a self-regulatory organization that is a signatory to the plan and has agreed to act in accordance with its terms.
Usage Boundary
This rule-specific sponsor is a plan signatory; it should not be generalized to commercial sponsorship or other ordinary meanings.
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.
A Regulation NMS definition for a self-regulatory organization that is a signatory to a national market system plan and agrees to act under its terms. This page is limited to the Regulation NMS definition used with a national market system plan; ordinary and other legal uses of “sponsor” may differ.
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