The Depository Trust & Clearing Corporation’s DTC Tokenization Service is scheduled for commercial launch in October 2026, following production trades on July 15 that served as the system’s final stress test. More than 30 firms tested collateral pledges, securities lending, U.S. Treasury and repo delivery-versus-payment, equity delivery-versus-payment, equity delivery-versus-delivery, token transfers and central counterparty margin workflows. The service received regulatory backing through a three-year SEC no-action letter issued on Dec. 11, 2025, allowing DTCC to operate it for assets held in custody on pre-approved blockchains. Powered by the ComposerX platform suite, it uses LFDT’s Besu for private networks and the Canton Network for public, institutional-grade interoperability. DTCC’s Industry Working Group now includes more than 50 firms, including major banks, asset managers, exchanges, custodians and digital-asset companies. DTCC data cited in the update puts global High-Quality Liquid Assets at $300 trillion, with only 10% to 11% currently used as collateral; Digital Asset estimates tokenized workflows could improve balance-sheet efficiency by 30% to 50%. The commercial launch will shift attention from testing to the operational demands of integrating tokenized settlement with legacy accounting, risk and regulatory systems, ahead of the planned Q4 2026 go-live of the Collateral AppChain.