DRW and Marex Put a Bond-Index Swap Fully Onchain on Canton

A total return swap tied to a corporate bond index has been settled entirely on a blockchain, and the contract now lives onchain for its whole life.

What actually happened

DRW and Marex completed the trade on Derivnex, an institutional over-the-counter derivatives platform built on the Canton Network. The swap references the iBoxx USD Liquid Investment Grade Index. Kaiko tokenized that index on Canton.

The iBoxx index tracks liquid, dollar-denominated investment-grade corporate bonds, so the swap gives the two firms exposure without requiring them to own the bonds.

Why this is not just another pilot

The companies involved describe it as the first OTC derivative to reference a fully tokenized index on distributed ledger infrastructure. Kaiko's token pairs the benchmark data with access permissions and usage rules, keeping the index provider's licensing controls intact. Kaiko also distributes signed official index values that the platform uses to value the position over its lifetime.

On Canton the trade is represented as a smart contract that carries its terms through the contract's lifecycle. The platform incorporates the Common Domain Model, a standard digital format for derivatives transactions and lifecycle events. Derivnex says affirmations, valuations and cash amounts each need both counterparties to agree before the contract state advances, and only authorized parties can view the data.

What is still missing

The announcements did not disclose the swap's notional size, its maturity, or which firm custodies the collateral. Moving margin, collateral and contractual payments onto the same rails is planned for a later stage. Derivnex says it will start with equity and index derivatives, including index, basket and single-name products.

Why a crypto reader should care

Canton is not a side chain nobody uses. It has processed more than $350 billion in daily U.S. Treasury repo volume, and the DTCC has already let participants convert DTC-held Treasuries into blockchain tokens under a 2026 pilot. For anyone watching where institutional money actually lands, the pattern is clear: it goes to rails that preserve licensing, privacy and collateral controls, not to whichever chain has the loudest token.

If margin and collateral really do move onchain here, the $1.6 trillion that surveyed firms posted as margin for non-cleared derivatives becomes the prize.