Curve vs Uniswap vs Balancer: Comparing AMM Fee Models

If you are choosing where to swap tokens or provide liquidity, the fee model is not a side detail. It decides how much you pay as a trader, how much you earn as an LP, and how sustainable a protocol's economics actually are. Curve, Uniswap, and Balancer solve this problem in three different ways, and picking the wrong one for your trade size or asset type can quietly cost you money through slippage, impermanent loss, or a fee structure that does not match how the pool actually trades. This article breaks down how each protocol's fee model works in 2026, where each one wins, and how to decide which to use based on what you are actually trying to do.

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How Each Protocol's Fee Model Actually Works

Each of these three AMMs charges swap fees differently, and the difference is not cosmetic. It changes who captures value and how much control liquidity providers have.

Curve: A Flat Fee Split Between LPs and Governance

Curve pools typically charge a swap fee around 0.04% on stablecoin and pegged-asset pairs, far below Uniswap's standard tiers. Half of every trading fee collected on Curve goes to users who have vote-locked their CRV tokens, a system known as veCRV. The rest goes to liquidity providers in the pool.

This is Curve's core tradeoff. LPs do not keep the full fee. The specialized AMM curve, roughly a 0.04% fee, and deep stablecoin liquidity make Curve the stronger choice for stable-to-stable or pegged asset trades, especially at larger sizes, while Uniswap performs better for volatile pairs. Curve's governance system recently shifted again. The CRV DAO moved from a crvUSD-centric fee distribution model to a more flexible, scrutiny-based system designed to reduce sell pressure on Curve's stablecoin and diversify how veCRV holders get paid. If you are locking CRV for yield, this governance layer matters as much as the swap fee itself.

Uniswap: Static Tiers on v3, Programmable Fees on v4

Uniswap v3 uses fixed fee tiers, most commonly 0.05%, 0.30%, and 1%, chosen by the pool creator based on expected volatility. Uniswap v4 changes this completely. Dynamic fees in Uniswap v4 are a type of swap fee paid by traders that accrues directly to liquidity providers, and they can adjust in real time based on market conditions instead of sitting at a fixed tier.

This flexibility comes from hooks, external smart contracts attached to a pool. Hooks run custom logic at set points in a pool's lifecycle, such as before or after a swap, and they enable dynamic fees, MEV protection, and limit orders without changing the core protocol. A recent example is Uniswap's stablecoin-focused hook. The StablePair Hook, live since September 10, 2026, is a dynamic-fee mechanism for stablecoin pairs that redistributes value previously captured by arbitrage bots back into the pool, starting with USDC/USDT and USDC/USDG on Ethereum.

Protocol-level fees are separate from what LPs earn. Following the UNIfication vote in December 2025, protocol fees on v2 and selected v3 pools are now collected and used to burn UNI, with coverage expanding chain by chain through 2026, though v4 pools do not yet pay protocol fees. If you want a deeper walkthrough of how LP economics actually play out on Uniswap, How to Provide Liquidity on Uniswap Without Losing More Than You Gain covers the math behind impermanent loss versus fee income.

Balancer: Weighted Pools with a Restructured Revenue Split

Balancer's fee model has changed more than any other protocol on this list in 2026, largely because of a major security incident. Balancer V3 uses a flexible vault architecture with customizable pools, dynamic swap fees, and hooks, where protocol revenue equals 25% of trade fees plus 10% of yield capture, down from 50% of trade fees before April 23, 2026. Token holder payouts changed even more sharply. Before April 23, 2026, 82.5% of protocol revenue went to veBAL and BAL holders, but that share dropped to 0% afterward.

The reason for the restructuring was a major hack. A rounding error in V2 Composable Stable Pools let attackers manipulate batch swaps and drain $128 million across seven blockchains on November 3, 2025, crashing TVL by 58% from $443 million to $186 million. Notably, V3 pools stayed completely untouched throughout the attack, which validated the newer infrastructure's isolation from the vulnerable V2 code. The fallout led to a full corporate wind-down. Under the restructuring, the DAO treasury is set to capture 100% of revenue, and a buyback program is planned to provide exit liquidity for token holders who do not support the new structure.

Image source: defillama.com/protocol/curve-finance

Fee Model Comparison

Protocol Analysis: Strengths, Weaknesses, and Who Should Use Each

Curve

Curve's edge is structural, not marketing-driven. Curve's AMM is tuned for assets with correlated prices, and when a pool has strong CRV emissions and high TVL, it often delivers better execution for larger trades. The tradeoff is complexity. Curve's docs explain that veCRV holders vote on gauge weights, which determine where CRV emissions flow, creating a feedback loop where emissions attract liquidity, liquidity improves execution, and better execution attracts more volume. When incentives shift away from a pool, that loop can run in reverse and liquidity can thin out fast.

Security is a real consideration. Curve Finance has recorded three security incidents, the most recent on March 2, 2026, involving $240,000 tied to token and share accounting. The protocol has also weathered a serious historical event. The July 2023 Vyper exploit was a serious incident, even though it originated from the Vyper compiler rather than Curve's own logic. If you want the full background on why Curve dominates stablecoin liquidity despite this complexity, see What Is Curve Finance and Why Does Everyone in DeFi Talk About It?

Curve is not the right tool for every trade. Volatile-asset swaps, low-liquidity long-tail tokens, and anything needing single-sided exposure are usually better handled elsewhere.

Uniswap

Uniswap's strength in 2026 is optionality. v3 gives predictable, audited fee tiers for straightforward trading. v4 gives builders the ability to design fee logic that reacts to volatility, order size, or custom conditions through hooks.

That flexibility introduces a new risk surface. The v4 core has run since January 2025 without an exploit, backed by nine audits and a $15.5 million bug bounty, but risk concentrates in third-party hooks, as shown by the $8.4 million Bunni exploit. The lesson is direct: the base protocol being secure does not mean every pool built on it is secure. A pool's safety now depends on which hook it uses, not just which version of Uniswap it runs on.

For traders working with large stablecoin sizes, the new StablePair Hook is worth watching. Uniswap processed $43.4 billion in stablecoin swaps in Q2 2026, outperforming the next three on-chain venues combined, and the StablePair Hook aims to close the gap with Curve's stablecoin execution by adjusting fees dynamically instead of relying on a static tier. This directly challenges one of Curve's biggest structural advantages.

Balancer

Balancer's core differentiator has always been pool flexibility. Unlike Uniswap's standard 50/50 pools, Balancer supports custom weightings and multi-asset pools, which makes it useful for index-style exposure and treasury management strategies that a two-token AMM cannot replicate.

2026 has been a stress test for that flexibility. Balancer's governance acknowledged that the November 2025 exploit caused substantial TVL damage, triggering a cycle of lower liquidity, less competitive trading, lower volume, lower fees, and lower treasury revenue. The token side reflects the damage. As of September 9, 2026, BAL trades at approximately $0.11 with a market capitalization of roughly $7.7 million and about $200,000 in 24-hour trading volume, which is extremely small compared with major DeFi assets.

Balancer is narrowing its focus rather than trying to compete broadly. The product strategy is streamlining to focus on reCLAMM pools, liquidity bootstrapping pools, stablecoin and liquid staking token pools, and weighted pools, with expansion to non-EVM chains. For most retail users, this means Balancer in 2026 is a narrower, higher-risk option than it was in its 2021 peak, useful for specific pool structures but not a default choice.

Image source: defillama.com/protocol/balancer

Which Protocol Fits Which Situation

How to Evaluate a Fee Model Before Providing Liquidity

Do not just compare the headline fee percentage. Check these factors first:

• Fee source, not just fee size. A 0.04% fee on $500 million in daily stablecoin volume can outperform a 1% fee on a thin, low-volume pool.
• Who takes a cut before you do. Curve sends half of every fee to veCRV lockers. Balancer v3 takes 25% of trade fees for protocol revenue. Know your real take-home rate, not the advertised gross fee.
• Whether the pool uses a hook or custom logic. On Uniswap v4 and Balancer v3, a hook can change fee behavior in ways a standard fee tier cannot. Read what the hook actually does before depositing.
• Recent security history for that specific pool version. Balancer V3 pools were untouched by the 2025 exploit while V2 pools were drained. Version matters as much as protocol name.
• Emissions dependency. If a pool's yield is mostly token incentives rather than trading fees, expect returns to drop once emissions taper.
• Governance concentration. Convex controls a large share of Curve's voting power, which affects where CRV emissions flow and, indirectly, which pools stay liquid.

Common Mistakes That Cost LPs Money

• Chasing the highest advertised APY without checking the yield source. Token emissions are not the same as durable fee revenue.
• Providing liquidity to a volatile pair on Curve. Curve's AMM is optimized for correlated-price assets; using it for non-correlated pairs increases impermanent loss risk without the fee compensation Uniswap offers.
• Assuming "Uniswap" or "Balancer" as a brand name means uniform security. Version- and pool-specific hook risk varies enormously, as the Bunni and Balancer V2 incidents both show.
• Ignoring the protocol-level fee split when calculating real yield. A quoted 0.30% swap fee is not what an LP keeps once protocol and governance cuts are removed.
• Locking tokens for governance rewards without modeling a downside scenario. veCRV locks run up to four years; a protocol restructuring or fee-model change during that window can materially change expected returns, as Curve's 2026 shift to scrutiny-based distribution shows.

Best Choice by User Type

• Beginners who mainly swap stablecoins: Curve, for its low fees and deep, predictable liquidity on correlated assets.
• Active traders working volatile pairs: Uniswap v3, for its established fee tiers and broad wallet and aggregator support.
• Developers or advanced LPs who want custom fee logic: Uniswap v4, using audited, well-reviewed hooks only.
• Users needing multi-asset or non-50/50 exposure: Balancer v3, with awareness that the protocol is still recovering from a major 2025 incident.
• Risk-averse users who prioritize capital preservation over yield optimization: Curve or Uniswap v3, avoiding legacy Balancer v2 pools entirely.

My Take

Curve and Uniswap are the stronger defaults for most users in 2026. Curve remains the most efficient venue for stablecoin and pegged-asset trading, and its fee split with veCRV lockers is a known, transparent cost rather than a hidden one. Uniswap's dual-track approach, stable v3 tiers plus programmable v4 hooks, gives it the widest range of use cases on this list, and its new StablePair Hook is a direct, credible challenge to Curve's stablecoin dominance.

Balancer is the hardest of the three to recommend right now, not because its technology is weak, but because its economics and trust are still recovering. A protocol that lost 58% of its TVL in a single hack, shut down its founding corporate entity, and cut token holder revenue to zero is going through a real transition. Balancer v3's untouched status during the exploit is a genuine point in its favor, and its multi-asset pool design remains unique. But I would only use Balancer for the specific pool types it now focuses on, and I would check pool version and audit status before depositing anything meaningful.

Before committing capital anywhere, check the actual fee split after protocol and governance cuts, confirm which contract version the pool runs on, and verify that a hook or custom AMM curve has been reviewed. Skip this, and the advertised fee number tells you almost nothing about what you will actually earn or risk.

Risks and Tradeoffs

• Smart contract risk scales with customization. The more programmable a fee model, the more code exists that can contain a bug. Uniswap v4 hooks and Balancer's custom pools both carry this tradeoff versus Curve's simpler, more battle-tested pool logic.
• Governance capture affects real yield. Large veCRV holders like Convex direct a significant share of Curve's emissions, which shapes where liquidity concentrates independent of pure market demand.
• Fee model changes can happen with little warning. Balancer cut token holder revenue from 82.5% to 0%, and Curve shifted its entire distribution mechanism in 2026. Anyone locking tokens long-term should price in the chance the deal changes.
• Bridge and cross-chain exposure compounds protocol risk. All three protocols now operate across multiple chains, and cross-chain deployments do not always share the same audit coverage or security track record as the flagship Ethereum deployment.

Conclusion

The right AMM depends on what you are trading, not which protocol has the most name recognition. Curve wins on stablecoin and pegged-asset execution because its fee curve and liquidity depth are built for that exact use case. Uniswap offers the broadest range of tools, from simple fixed-tier pools to fully programmable v4 hooks, making it the most flexible general-purpose choice. Balancer still has a real niche in multi-asset and custom-weighted pools, but its 2025 exploit and subsequent restructuring mean it deserves more scrutiny than it did a year ago.

Before providing liquidity anywhere, work out the actual fee split after protocol cuts, check the contract version, and confirm any hook or custom logic has been reviewed. That five-minute check matters more than chasing the highest posted APY.

FAQs

1. Which AMM has the lowest fees for stablecoin swaps?

Curve generally offers the lowest effective fees for stablecoin and pegged-asset swaps because its pool curve and pricing are built specifically for correlated-price assets. Uniswap's new StablePair Hook on v4 is starting to compete directly in this niche.

2. Do Uniswap v4 hooks make pools less safe than v3?

Not automatically, but hooks add a new risk layer that depends entirely on the specific hook's code and audit history. The Bunni exploit shows that hook-level bugs can drain funds even when the core v4 protocol itself remains unexploited.

3. Why did Balancer cut fees paid to BAL and veBAL holders?

Balancer's governance restructured its revenue model after a major November 2025 exploit crashed TVL and put the protocol's finances under pressure. The DAO treasury now captures the revenue share that veBAL holders previously received, as part of a broader plan to stabilize operations.

4. Is it safer to use Balancer v3 than Balancer v2?

Balancer v3 pools were not affected by the 2025 exploit that drained Balancer v2 Composable Stable Pools, which is a meaningful signal about the newer architecture's isolation. That said, v3 is younger and has a shorter track record, so it still carries normal smart contract risk.

5. Who actually earns Curve's swap fees?

Curve splits trading fees between liquidity providers and veCRV holders who have vote-locked their CRV tokens, with about half going to each group historically. The exact distribution mechanism changed in 2026 under Curve's new scrutiny-based fee model, so LPs and lockers should check current governance parameters before assuming a fixed split.

References

Curve Finance TVL, Fees, Revenue & Volume: https://defillama.com/protocol/curve-finance

Claiming Trading Fees - Curve Resources: https://resources.curve.fi/vecrv/claiming-trading-fees/

Curve Finance Review 2026: https://insidecryptoreview.com/en/dex/curve

Dynamic Fees | Uniswap: https://docs.uniswap.org/contracts/v4/concepts/dynamic-fees

Uniswap V4 Explained: Hooks, Adoption & UNIfication: https://www.datawallet.com/crypto/uniswap-v4-explained

Balancer V3 TVL, Fees, Revenue & Volume: https://defillama.com/protocol/balancer-v3

Balancer TVL, Fees, Revenue & Volume: https://defillama.com/protocol/balancer

Balancer Labs shuts down after $110M exploit rocks DeFi market: https://invezz.com/au/news/2026/03/24/balancer-labs-shuts-down-after-dollar110m-exploit-rocks-defi-market/

Balancer reveals $128M hack details: V2 rounding error triggers 58% TVL collapse: https://www.mexc.com/news/155860.

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Chanuka is a content writer, editor and contributor at Panaprium, specializing in long-form editorial articles. He conducts in-depth research and produces well-structured, carefully edited content with a strong focus on clarity, SEO best practices, and consistent formatting. His work spans lifestyle, fashion, wellness, and technical topics, and all articles are reviewed and refined to meet Panaprium’s editorial standards.