defirisk.co
rubric v1.7.0

Algorithmic / under-collateralized stablecoin

A economic risk factor in the v1.7.0 rubric. Measured per protocol on a s cadence.

Methodology how we score#

What this measures
This factor is a curator-assigned categorical classification: whether the protocol is an algorithmic or under-collateralized stablecoin design per curator classification. The classification is based on the protocol's stated design, its collateralization mechanism, and the nature of its stabilization mechanism. Purely fiat-backed or overcollateralized designs score green; partially algorithmic designs or designs relying on endogenous collateral score yellow; purely algorithmic or fractional-reserve designs score red.

Why it matters
Algorithmic stablecoins represent a distinct economic failure mode not present in overcollateralized lending or AMM designs: the reflexive collapse. Under Terra/Luna, the protocol's stabilization mechanism (mint/burn arbitrage between LUNA and UST) amplified rather than damped the depegging event, producing a total loss of approximately $40B in market value within days. The fundamental risk is that the stabilization mechanism is pro-cyclical at the tail: it works well during small deviations but fails catastrophically during large ones because the collateral (endogenous LUNA) depreciates as the stabilization mechanism is exercised. Any protocol featuring an endogenous token as a meaningful component of its stabilization reserve is exposed to this dynamic.

Green / Yellow / Red
Green: protocol uses no algorithmic stabilization; stablecoin is fully backed by exogenous overcollateralized assets with a minimum collateral ratio enforced on-chain. Yellow: protocol uses a hybrid mechanism with partial algorithmic backing; stabilization reserve includes some endogenous tokens but exogenous collateral exceeds fifty percent. Red: protocol is primarily algorithmic (stabilization reserve is majority endogenous tokens) or is fractional-reserve by design.

Common gray cases
Protocols that use algorithmic mechanisms for rate adjustment (e.g., Liquity's interest rate targeting) but maintain full collateralization are not classified as algorithmic stablecoins; the risk category applies to stabilization collateral composition, not rate-setting mechanisms.

Notable historical examples
No cross-hacked incidents currently linked in database for this factor.

Measurement what to look for#

Classify whether the protocol is an algorithmic or under-collateralized stablecoin design per curator classification.

Data & output #

Data source
Protocol docs + whitepaper + curator classification
Output format
Green / Yellow / Red
Evidence artifact
Curator classification: over-collateralized / partially-collateralized / algorithmic / fiat-backed + protocol docs URL
Confidence signal
green = fully over-collateralized with excess reserves; yellow = partially collateralized with stability mechanism; red = algorithmic (no exogenous collateral); gray = stablecoin classification not applicable to this protocol

Scored protocols 0 carry this factor#

No protocols have been scored for this factor yet.

Linked hacks no historical incidents linked#

No historical incidents are linked to this factor.
rubric_version v1.7.0factor RD-F-069category 4carried 0critical no