Balancer
AuditedVerifiedHas Risk AlertWinding DownBalancer is a programmable AMM that pioneered weighted pools and the singleton-Vault architecture. V3 (Dec 2024) ships a flexible Vault with hooks for custom pool logic.
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Score history
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The Problem
AMMs with fixed 50/50 token weights (Uniswap V2) limit portfolio strategies, index funds, and stable-asset pools. Per-pool deployment fragments capital.
The Solution
Balancer's weighted-pool AMM supports arbitrary token weights (e.g. 80/20, 33/33/33), composable stable pools, and a singleton Vault that pools liquidity across all pool types for atomic multi-hop swaps.
Why it Matters
Pioneered the singleton-Vault architecture later adopted by Uniswap V4. V3 hooks enable custom pool behavior (limit orders, MEV capture, stable surge) without forking the protocol. Deeply integrated as Aave's boosted-pool infrastructure.
Protocol Metrics
Related Research
View allFrequently asked questions about Balancer
What is Balancer?+
Balancer is a DEX protocol operating on Ethereum, Arbitrum, Base, Polygon, Optimism, Avalanche, Gnosis, Monad, Hyperliquid. Balancer is a programmable AMM that pioneered weighted pools and the singleton-Vault architecture. V3 (Dec 2024) ships a flexible Vault with hooks for custom pool logic.
How does Balancer work?+
Balancer's weighted-pool AMM supports arbitrary token weights (e.g. 80/20, 33/33/33), composable stable pools, and a singleton Vault that pools liquidity across all pool types for atomic multi-hop swaps.
Is Balancer safe?+
DeFi Sentinel rates Balancer A with a safety score of 78/100, indicating low-to-moderate risk. The score reflects five risk dimensions: smart contract & technical risk, economic design & market risk, governance & centralization, sustainability & competitive position, and reputation & social trust. Balancer has 7 audits on record. DeFi Sentinel's analysis flagged 1 high, 3 medium, 3 low risk alerts across Smart Contract & Technical Risk, Economic Design & Market Risk, Governance & Centralization, Sustainability & Competitive Position and Reputation & Social Trust. As with all DeFi protocols, residual risk remains and users should review the full risk breakdown before depositing.
What is the safety score of Balancer?+
Balancer has a DeFi Sentinel safety score of 78/100 (rating A), last updated October 13, 2026. The score is computed across smart contract & technical risk (30%), economic design & market risk (25%), governance & centralization (20%), sustainability & competitive position (15%), and reputation & social trust (10%).
Which chains does Balancer support?+
Balancer is deployed on Ethereum, Arbitrum, Base, Polygon, Optimism, Avalanche, Gnosis, Monad, Hyperliquid.
Has Balancer been audited?+
Yes. Balancer has 7 audit reports on record from firms including OpenZeppelin, Trail of Bits, Certora. Audit reports and dates are linked under the Resources tab on this page.