According to CoinDesk, global banking giant Citi has partnered with the digital asset division of Switzerland's main securities trading platform, SIX Digital Exchange (SDX), to tokenize privately traded shares. This initiative aims to streamline this $750 billion market, which currently relies on PDF files and paper documents. Citi will act as custodian and issuing agent, providing tokenized versions of late-stage, private company equity on SDX's regulated blockchain platform, the Central Securities Depository (CSD) platform.