PANews reported on October 1 that according to Cointelegraph, the Stuttgart Stock Exchange Group in Germany has completed a secondary market transaction test of blockchain technology in cooperation with the European Central Bank. The test shortened the settlement time of securities transactions from two days to a few minutes by using a blockchain-based settlement solution, involving five tokenized securities such as bonds, funds and stocks. The project demonstrated the interoperability of blockchain and central bank currencies, aiming to improve transaction efficiency and security, and eliminate counterparty risks.