Boerse Stuttgart Group, Germany's second-largest exchange, has partnered with the European Central Bank (ECB) to complete a secondary market trading test using blockchain technology. According to a press release, this development marks the group's first "exchange trading settlement using blockchain-based securities with central bank money." "The settlement solution is linked to the Deutsche Bundesbank's Target2 settlement system, thus also to the traditional euro payment system." The test was part of the ECB's exploration of blockchain technology and involved six collaborating banks: Commerzbank, Deutsche Bank, DZ Bank, LBBW, Bankhaus Metzler, and V-Bank. Using Boerse Stuttgart Group's blockchain-based settlement solution, these institutions tested various trades involving five tokenized securities, including bonds, funds, and stocks. (Cointelegraph)