[U.S. CFTC and SEC Seek Public Comment on Unified Portfolio Margining Framework] According to the official website of the U.S. Commodity Futures Trading Commission (CFTC), the CFTC and the U.S. Securities and Exchange Commission (SEC) have jointly issued a document seeking public comment on further harmonizing the regulatory framework for portfolio margining and cross-margining of securities, security-based swaps, futures, swaps, and related positions. The two agencies aim to enhance risk management efficiency, reduce unnecessary market fragmentation, and strengthen customer protection through unification or improved coordination. Key areas for public comment include existing portfolio margining models and practices, customer protection, cross-margining and cross-product offsets, capital and margin requirements, collateral management, clearinghouse and clearing organization arrangements, as well as technical and operational implementation. The comment period will last for 60 days following the document's publication in the Federal Register.