Options Class 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
In Regulation NMS, an options class is the complete set of put series or call series overlying the same security.
Key details
Canonical FormOptions Class
Core MeaningUnder 17 CFR § 242.600, an options class consists of all put-option series or all call-option series overlying a security as defined by the cited Exchange Act provision.
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, an options class consists of all put-option series or all call-option series overlying a security as defined by the cited Exchange Act provision.
Usage Boundary
The defined term groups option series by put or call type over an underlying security; it is not a generic label for every option contract.
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.
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