Moderate-high risk — sophisticated shared-liquidity architecture with five novel mechanisms at $787M TVL; active development and multiple audits partially offset concentration risk
Risk Breakdown
Top Risks
1
Extreme gas optimization using inline assembly sacrifices code readability, complicating audits and obscuring potential attack paths
2
Cross-contract reentrancy possible due to check-effect-interaction pattern violations in Vault functions
3
Rapid TVL growth (peaked at $6B, currently ~$787M) with novel mechanisms sharing a single liquidity pool creates concentrated systemic risk
Frequently Asked Questions
Is Fluid safe to use?
Fluid receives a C+ risk grade (36/100) from Hindenrank, where lower scores indicate lower risk. Moderate-high risk — sophisticated shared-liquidity architecture with five novel mechanisms at $787M TVL; active development and multiple audits partially offset concentration risk A lending protocol where your collateral and debt simultaneously earn trading fees from a built-in exchange. It rocketed to $6B in deposits before settling around $787M, letting the same capital work across lending, vaults, and trading. Its C+ grade reflects elevated mechanism novelty risk from five untested mechanisms sharing one liquidity pool.
What are the main risks of using Fluid?
The key risks identified for Fluid are: (1) All $787M sits in one shared liquidity layer. A single bug in any of the three products (lending, vaults, or the exchange) could drain everything at once (2) The code is heavily optimized with low-level programming that is harder for security auditors to read. Critical bugs can hide in the complexity (3) Growing to $6B and contracting to $787M means the first major stress test on the novel mechanisms is still ahead
What is Fluid's risk score breakdown?
Fluid scores 36/100 across eight risk dimensions: Mechanism Novelty: 6/15, Interaction Severity: 6/20, Oracle Surface: 2/10, Documentation Gaps: 2/10, Track Record: 3/15, Scale Exposure: 7/10, Regulatory Risk: 2/10, Vitality Risk: 8/10. The highest risk area is Vitality Risk at 8/10.
How does Fluid compare to other Lending protocols?
Among 95 rated Lending protocols on Hindenrank, Fluid ranks #50 by safety (lowest risk score = safest). Its 36/100 risk score and C+ grade place it in the middle tier of Lending protocols.
Has Fluid ever been hacked or exploited?
Fluid scores 3/15 on the Track Record risk dimension, indicating some history of security incidents or exploits. Higher scores reflect more severe or frequent incidents. Review the full risk report for details.
Incident History
1incident|$215,000total losses
Last scanned 2026-05-17
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