Collateral management is one of finance’s most unglamorous problems, and also one of its most expensive ones. Canton Network is now claiming a meaningful piece of the solution, with prime brokers and clearing houses formally committing to accept collateral posted on its blockchain.
The commitments represent a shift from pilot programs to production-level adoption.
Who is actually signing on
Société Générale made the most significant announcement on May 13, 2026, stating it would accept tokenized collateral as margin for its Prime Services clients. The French bank also positioned itself as a counterparty for repo transactions running through Canton’s infrastructure. Its rationale centered on configurable privacy, specifically the ability to control which counterparties see which data during collateral approvals.
Marex followed with a live demonstration. On June 17, 2026, the brokerage completed an on-chain repo transaction involving HIFI and DRW.
