apxUSD

apxUSD is an overcollateralised synthetic dollar, meaning the assets securing it exceed the tokens issued. That is a stronger structural position than a partially backed design, and it is not by itself sufficient — the composition and the liquidation mechanism decide whether it holds.

What overcollateralisation actually guarantees

It means that at the moment of measurement, collateral value exceeds debt. It does not guarantee that collateral can be sold at that value during stress, that liquidations will clear in time, or that the ratio holds through a sharp decline. Those are separate properties.

Composition is the substantive question

Collateral in liquid, uncorrelated assets is far more robust than collateral concentrated in a single volatile token or in assets from the issuing ecosystem. The latter is reflexive: it loses value precisely when the peg is under pressure and buyers are scarce.

Liquidation depth determines the outcome

The buffer only helps if seized collateral can be sold. In thin markets, liquidating a large position moves the price against the liquidator and the recovery falls short. This is why protocols cap exposure per asset rather than relying on the ratio alone.

Verification is the advantage of on-chain backing

Unlike a fiat-backed token where you rely on an attestation, collateral here is inspectable at any moment. Any holder can check the ratio and the composition directly, which is a genuine structural advantage over trusting a statement.

Who it suits

This fits users who will actually inspect the collateral rather than relying on the overcollateralised label. Users wanting a simpler claim should hold a fiat-backed token from a supervised issuer.