Elevated risk — a seven-month-old tranching design where Senior's protection is only as deep as a thin Junior buffer and wrapper access paths carry weaker upgrade controls, partially offset by unusually thorough audit coverage, isolated per-market architecture and a 5-day timelock on the core protocol.
Risk Breakdown
Top Risks
Junior tranche capital is co-invested in the same underlying asset as Senior (beta = 1), so it provides loss absorption but no diversification. At the ~12.4% coverage observed in live markets, Junior carries roughly 8x downside leverage and a drawdown beyond the coverage ratio passes straight through to the nominally protected Senior tranche.
Senior downside protection is a function of Junior capital depth, not a guarantee. Markets have been observed running only 2-3 Junior depositors, so a single large Junior withdrawal or a correlated drawdown can thin the buffer that Senior's protection depends on.
Access paths built on third-party wrappers carry weaker controls than core Royco Dawn. Yearn's independent review of the srRoyUSDC Concrete vault found the MultisigStrategy proxy upgradeable by a 3-of-5 multisig with no timelock, and asset values reported by that same multisig via adjustTotalAssets() rather than an oracle.
The current tranching codebase has been in production since January 2026. Audit coverage is unusually deep for its age (Hexens, Certora, WatchPug, Nethermind, plus a Cantina competition and ongoing formal verification), but no amount of review substitutes for time under adversarial conditions at scale.
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