Prometheum Capital, HashKey and Velocity Capital have signed a memorandum of understanding to support trading in tokenized U.S. stocks, ETFs and Treasuries for eligible overseas investors through the HashKey exchange. The tokens would be backed by securities held at the Depository Trust Company. The arrangement would link Prometheum’s compliant custody and trading infrastructure with overseas crypto-market distribution networks and a DTCC tokenization service planned for launch in the fourth quarter of 2026. The project remains subject to final agreements, regulatory approvals and technical integration.