Advisory firm Broadridge processes $50 billion of major bank repo trades daily on its DLR platform. Europe-focused private blockchain company HQLAx says its platform could save banks up to €100 million a year. More than $1.5 trillion in repos and other forms of securities financing are executed monthly using private blockchains. Blockchain platforms such as DLR Broadridge and HQLAx are processing significant volumes and building cross-chain interoperability by integrating banking cash tokens.