Cboe EDGA amends Rule 13.8 to describe Cboe One Feed by source

The Securities and Exchange Commission published a notice that Cboe EDGA Exchange, Inc. filed on November 3, 2026 a proposed rule change to amend Rule 13.8(b) describing the Cboe Aggregated Market Feed (Cboe One). The filing is identified as Release No. 34-106857; File No. SR-CboeEDGA-2026-037 and appears in FR Doc No. 2026-23102.

The amendment replaces the current itemized list of data elements with language that the Cboe One Feed is derived from the Multicast Depth feeds of the Exchange and its affiliated exchanges - BZX, BYX, and EDGX - and from the securities information processors (SIPs). It also states that the feed is offered in two versions, Cboe One Summary and Cboe One Premium, which differ only in the quotation information each provides.

The proposed text deletes references to individual messages, specific price-level counts, and the methodology for Cboe One Opening and Closing Prices. It removes the five-price-level version of Cboe One Premium, which was sunset effective November 2, 2026, leaving only the twelve-price-level version that has been available since May 4, 2026.

The rule change is effective immediately upon filing, i.e., November 3, 2026, and the Commission is soliciting comments from interested persons. The full text of the proposed amendment is available on the SEC and Cboe websites and at the Exchange's principal office.

Market-data users of Cboe EDGA and its affiliated exchanges must now rely on the revised source-based description for any future additions or modifications to the feed, as new elements sourced from the identified feeds will not require a separate rule filing.