Auction Information is a current Regulation NMS term for specified, publicly disseminated exchange data generated leading up to and during securities auctions.
ReviewedEvidence1 sourceSectionPhrases & Idioms
Quick answer
Regulation NMS defines Auction Information as specified exchange-generated information produced around opening, reopening, and closing auctions and disseminated under the applicable rule or plan schedule.
Key details
Canonical FormAuction Information
Core MeaningInformation specified by exchange rules or effective NMS plans that an exchange generates leading up to and during opening, reopening, or closing auctions and publicly disseminates on the prescribed schedule.
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(b)(5) covers information generated by a national securities exchange leading up to and during auctions, including opening, reopening, and closing auctions, when specified and disseminated under exchange rules or effective NMS plans.
Usage Boundary
Do not generalize the defined term to every piece of auction-related commentary; preserve the rule/plan generation and public-dissemination conditions.
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.
Consolidated Last Sale Information is a current Regulation NMS defined term. This guide preserves the specific U.S. securities-rule scope instead of substituting an ordinary-language meaning.
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Actionable Indication of Interest 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.
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Under current U.S. Regulation NMS definitions, aggregate quotation size is the sum of the quotation sizes of all responsible brokers or dealers communicating bids or offers in an NMS security at the same price. Treat this as a U.S. securities-regulation definition; it should not be generalized to unrelated uses of aggregate size or quotation outside Regulation NMS.
Alternative Trading System 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.
Under Regulation NMS, an automated quotation is a quotation displayed by a trading center that can be acted on through an automated facility meeting specified immediate-or-cancel response and update conditions. Treat this as a U.S. securities-regulation term. The definition is jurisdiction- and rule-specific, not a general dictionary label for every electronic market quote.
