A Bitcoin-backed stablecoin you probably haven’t heard of just quietly crossed $750 million in lifetime volume. MUSD, the flagship product of the Mezo ecosystem, now operates natively across Mezo, Ethereum, and Base via Wormhole’s cross-chain infrastructure, marking a notable milestone for what remains one of the more ambitious experiments in Bitcoin DeFi.

MUSD appears to be breaking that pattern, with roughly $789 million in transaction volume during the first half of 2026 alone and around 41,000 holders to its name.

How MUSD actually works

MUSD operates on a collateralized debt position model. Users deposit Bitcoin as collateral and mint dollar-denominated stablecoins against it, similar to how MakerDAO’s DAI works with Ethereum, except with Bitcoin as the underlying asset.

The system allows loan-to-value ratios of up to roughly 90%, with over-collateralization exceeding 110%. That means for every dollar of MUSD in circulation, there’s more than $1.10 worth of Bitcoin backing it up.

As of mid-2026, approximately 913 BTC sit locked as collateral within the Mezo ecosystem. The appeal is straightforward: maintain long exposure to BTC while still being able to deploy capital across DeFi.

Mezo launched its mainnet alongside MUSD on May 28, 2025. The Wormhole integration followed shortly after on August 4, 2025, enabling what the protocol calls Native Token Transfers, a burn-and-mint mechanism that lets MUSD move between chains without the liquidity fragmentation that plagues most bridged assets.

The Wormhole integration changes the equation

Wormhole’s NTT standard takes a different approach. When MUSD moves from Mezo to Ethereum, tokens are burned on the origin chain and minted natively on the destination chain. No wrapped versions, no intermediary pools. The same MUSD on Base is the same MUSD on Ethereum.

This matters for a practical reason: DeFi composability. A stablecoin that exists natively on Ethereum and Base can plug into the existing lending, trading, and yield infrastructure on those chains without requiring custom integrations for wrapped variants. For MUSD holders, this means access to the deep liquidity pools on Ethereum and the low-fee environment on Base without leaving the stablecoin ecosystem.

Where MUSD fits in the stablecoin landscape

MUSD’s $750 million-plus in lifetime volume isn’t going to threaten Tether’s dominance anytime soon. But the trajectory is notable. Reaching that figure roughly a year after mainnet launch, with the bulk of volume concentrated in H1 2026, suggests accelerating adoption rather than a one-time spike.

The 41,000 holder count provides another useful data point. That’s a meaningful user base for a relatively young protocol, and it suggests organic demand rather than volume driven purely by incentive farming or wash trading.

The 913 BTC locked as collateral tells an interesting story about user confidence. Depositing Bitcoin into a smart contract system requires trust in both the code and the economic model. The over-collateralization requirements above 110% provide a buffer against liquidation cascades, but they also mean the system is less capital-efficient than centralized alternatives. That’s a deliberate trade-off: more safety, less leverage.

The risk factors are equally clear. CDP-based stablecoins live and die by their liquidation mechanisms. A sharp enough Bitcoin price decline could trigger cascading liquidations that stress the peg. The Wormhole integration, while technically elegant, adds bridge-layer risk that wouldn’t exist in a single-chain deployment.