Dissemination of Quotations -- Rule 602 of Regulation NMS

Section 11A(a)(2) of the Securities Exchange Act of 1934 (“Exchange Act”) directs the Securities and Exchange Commission (“Commission”) to use its authority under the Exchange Act to facilitate the establishment of a national market system in which, among other things, brokers, dealers, and investors have access to information on securities quotations and transactions. Moreover, the Commission is authorized, under Sections 11A(c)(1)(B) and (F) of the Exchange Act, to assure the prompt, accurate and reliable distribution of quotation information and to assure the fairness and usefulness of the form and content of such information. To achieve these statutory objectives, the Commission promulgated Rule 11Ac1-1, designated as Rule 602 of Regulation NMS, 17 CFR 242.602. Rule 602 contains two related collections of information. The first collection of information is found in Rule 602(a). This requirement obligates each national securities exchange and national securities association to make available to quotation vendors for dissemination to the public the best bid, best offer, and aggregate quotation size for each “subject security,” as defined under the Rule. The second collection of information is found in Rule 602(b). This requirement obligates each exchange member and over-the-counter (“OTC”) market maker that is a “responsible broker or dealer,” as defined under the Rule, to communicate to an exchange or association its best bids, best offers, and quotation sizes for subject securities.

The latest form for Dissemination of Quotations -- Rule 602 of Regulation NMS expires 2029-06-30 and can be found here.