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A stablecoin’s Risk Rating is a single letter grade from A+ (lowest risk) to F (highest risk), mapped directly from the token’s 0–100 risk score on Webacy’s standard 11-band scale — the same scale used across every Webacy grade surface. It is a risk rating: lower risk earns a better grade, while the underlying risk score runs higher = worse. The band cutoffs encode severity, so a riskier token can never grade better than a safer one — the grade maps straight from the risk score with no separate overrides on top. Bands are tighter at the safe end and widen as risk rises.

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What Drives the Risk Score

A stablecoin’s risk score combines three dimensions (weights sum to 100%). Each contributes risk points — higher means riskier.
Peg Risk (40%)Live depeg risk score. A healthy stablecoin (risk score 0) contributes 0 risk pts; a fully depegged token (risk score 100) contributes the full 40 pts.40 × (risk_score / 100)
Pre-Depeg Stress (30%)Peg Canary Score (PCS) pre-depeg stress. CALM conditions contribute ~0 pts; DANGER contributes up to ~30 pts. If PCS data is unavailable, this weight is redistributed to the other two dimensions.30 × (pcs_score / 100)
Structural Risk (30%)Composite of peg mechanism, governance type, token type, holder concentration (HCI), mint cap status, and Webacy contract risk. Captures inherent design risk independent of current price behaviour.30 × (structural_risk / 100)
Risk Score = Peg Risk + Pre-Depeg Stress + Structural Risk contributions. Capped 0–100, higher = more risk. Good structure doesn’t save a token that’s actively depegging — strong design plus a crashing price still produces a D or F, because peg risk dominates the score.
For the full real-time depeg risk methodology — the 16 signals behind the live risk score — see Scoring Methodology. For structural risk on stablecoins and RWA tokens, see RWA Risk (v3).

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Structural Risk Breakdown

How risky is the token’s design, independent of current price? Formula:
0.65 × mechanism_risk + 0.35 × governance_risk + adjustments — 0 = lowest structural risk, 100 = highest.

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Peg Mechanism Risk (65% weight within structural)

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Governance Risk (35% weight within structural)

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Structural Adjustments (additive risk)

HCI (Holder Concentration Index) adjustments are exempt for fiat_reserve tokens. USDC holders simply redeem at $1 with the issuer — there is no exit-dump amplification risk. Crypto-collateral, delta-neutral, and algo tokens face real cascade risk from concentrated exits.