Yield Basis Proposes Fee Changes for WETH Curve Pool
Liquidity providers may see new swap fee structures designed to reduce value extraction through arbitrage.
Updated on Oct. 29, 2026 in Investing
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Yield Basis has proposed a fee and re-peg policy upgrade for its WETH pool on Curve to mitigate arbitrage losses. The change aims to stabilize value for liquidity providers who saw a 0.73% decline in yb-WETH share value between June 10 and September 30, 2026.
Why it matters
This proposal aims to close specific routes that currently allow for pool value extraction through deposits and withdrawals. By shifting to new Pyth price report references, the protocol hopes to reduce arbitrage activity that contributed to an annualized share value decline of 2.4%.
The proposed base swap fee is 0.50% with a 1.75% cap, replacing a current Twocrypto fee range of 1.36% to 2.82%. The underlying asset pool experienced a 0.73% share value decline from June 10 to September 30, 2026, representing an annualized drop of 2.4%.
The players
Yield Basis
A decentralized finance protocol currently proposing changes to its pool management and fee structures.
Curve
A decentralized exchange platform that hosts liquidity pools for digital assets like WETH.
Pyth
A provider of real-time price oracles that the protocol plans to use for its updated re-peg policy.
The details
The upgrade replaces the existing Twocrypto fee structure with a mechanism tied to Pyth Pro Ether price reports. This model includes a fee discount that fades as price data ages, eventually disappearing after five minutes to ensure accuracy. Requested liquidity target adjustments are limited to 0.50% per block using 80- and 160-minute price averages to prevent sudden volatility.
Timeline
June 10, 2026 marked the start of the tracking period for the share value decline.
September 30, 2026 was the end date for the recorded share value drop.
October 29, 2026 is the publication date of the proposal news.
Money Landscape
The protocol is moving away from its legacy Twocrypto fee curve to address persistent arbitrage pressures within its liquidity pools. This transition reflects a broader trend among decentralized finance platforms seeking to improve capital efficiency through tighter reliance on external price oracles.
Liquidity providers in WETH pools should monitor the upcoming governance vote, as the fee changes could directly impact potential yield and the risk of value extraction. Investors should speak with a professional to understand the risks of shifting fee structures in decentralized finance assets.
The takeaway
This protocol update seeks to tighten fee structures and stabilize value against arbitrage-driven losses. Investors should watch for the results of pending governance votes that will authorize these fee changes across WETH and subsequent pools like cbBTC and WBTC.
Further reading
Learn more about the mechanics of Investing to understand how protocol upgrades can affect liquidity provider returns.
Source note: This article includes information reported by TokenPost.
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