Balancer V3 Launches StableSurge Hook with Dynamic Fees and Boosted Pools
Balancer V3 has deployed its first production hook, **StableSurge**, now live across multiple chains. The hook introduces **directional dynamic fees** for stable pools that respond to pool balance:
- Fees increase when trades push the pool off balance
- Fees decrease when trades restore equilibrium
- Traders rebalancing the pool pay only base fees, while those creating imbalance pay surge fees
Two parameters control behavior:
- **surgeThreshold**: imbalance level triggering surge fees
- **maxSurgeFee**: fee ceiling that scales linearly with imbalance
StableSurge solves the traditional stable pool tradeoff between capital efficiency and peg protection. Higher amplification parameters can now be set for better efficiency during normal conditions, while dynamic fees provide protection during volatility.
The wstETH/wETH pool adds **boosted pool functionality**, where both assets earn lending yield on Fluid in the background, stacking on top of swap fees. This eliminates the choice between lending and providing liquidity.
