USD0++ depeg: when Usual changed the redemption floor

Before the announcement, the market's working model was that one USD0++ could be redeemed for one USD0 at will. Usual replaced that with a two-path exit. Holders could leave immediately at a floor that began at $0.87 and was scheduled to rise toward $1 across the asset's four-year term, or they could take a conditional 1:1 unstake that required surrendering accrued USUAL rewards. Either path made the true cost of leaving early explicit for the first time.

The decision was made by the issuer and rolled out directly, not ratified through a holder vote ahead of time. That is the defining feature of this event. The reserve assets behind USD0 were unchanged and the protocol was not insolvent. The break was contractual rather than financial: the terms governing early exit were rewritten, and a price holders had treated as guaranteed turned out to be revisable.

USD0++ was always closer to a fixed-term instrument than a dollar. Locking USD0 for roughly four years in exchange for token rewards is the economic shape of a zero-coupon-style claim, and a claim that pays out at par only at maturity should trade at a discount before then. At a few percent of annual yield over four years, a fair present value sits in the high-80-cent range rather than at $1. Viewed that way, the $0.87 floor was not a loss of backing; it was the issuer codifying the discounted value of an early exit.

The damage came from the gap between that mechanism and how the asset had been used. Marketed beside USD0 and quoted near parity, USD0++ had been treated by much of the market as a slightly higher-yielding dollar. When the floor made the bond-like nature explicit, the soft peg holders had assumed simply was not there to defend. The lesson is not that the design was unsound but that a locked yield instrument should not be relied upon as a $1 stablecoin.

The repricing propagated through DeFi because lending markets had priced away the very risk the floor exposed. Several Morpho markets accepting USD0++ as collateral used oracles that valued it at a fixed 1:1 to USD0 rather than tracking a floating market rate. While USD0++ held near parity, leveraged and looped positions built on that assumption looked safe.

Once the early-exit value fell below $1, those positions were suddenly worth less than the oracle implied, and unwinding pressure followed. Curve pools holding USD0++ tilted heavily to the discounted side as holders rushed for the deepest available exit, and the USUAL governance token fell sharply in sympathy. The cascade was a plumbing failure layered on top of the terms change: hardcoded parity oracles turned a contractual repricing into forced deleveraging.

Redemption terms are part of the peg. A soft peg that rests on an issuer's redemption promise is only as firm as the issuer's discretion to revise it, and a change made without prior holder consent can reprice an asset overnight even when its backing is untouched. Track who controls exit terms and how those terms can change.

Locked yield instruments are not dollars. A multi-year claim that pays par only at maturity behaves like a bond and should be expected to trade at a discount before then; treating it as a $1 stablecoin imports duration and terms risk that a true stablecoin would not carry. The cascade is the second lesson: collateral systems that hardcode a derivative asset at parity to its base remove the price signal that would otherwise warn of exactly this kind of repricing.