Joint Request for Comment on Further Implementation of Portfolio Margining and Cross-Margining of Securities and Derivatives

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Commodity Futures Trading Commission 17 CFR Parts 1 and 23 RIN 3038-AF72 Securities and Exchange Commission 17 CFR Parts 240 and 242 [Release No. 34-105781; File Number S7-2026-23] RIN 3235-AN80 ( printed page 39579) AGENCY: Commodity Futures Trading Commission; Securities and Exchange Commission. ACTION: Joint request for comment. SUMMARY: The Commodity Futures Trading Commission (“CFTC”) and the Securities and Exchange Commission (“SEC”) (together, the “Commissions”) request public comment on potential ways to further implement portfolio and cross-margining of securities and derivatives that are subject to the jurisdiction of either the SEC or CFTC, or both Commissions. DATES: Comments must be received on or before August 31, 2026. ADDRESSES: Comments may be submitted by any of the following methods: CFTC Comment Submission You may submit comments, specifically referencing “Joint Request for Comment on Further Implementation of Portfolio Margining and Cross-Margining of Securities and Derivatives” and RIN 3038-AF72, by any of the following methods: Regulations.gov: Go to https://www.regulations.gov and press the “Search” button, then proceed as follows: 1. Under Refine Documents Results—check the box to “Only show documents open for comment”; 2. Under Agency—select “See More” and check the box for “Commodity Futures Trading Commission,” then press the Apply button; 3.…