UniHooks

ImpactHook

EthereumRegistered

Computes a dynamic LP fee based on estimated price impact and an illiquidity metric (price impact divided by swap volume), overriding the fee before each swap via OVERRIDE_FEE_FLAG. Tracks actual post-swap price impact and updates the illiquidity state used to estimate fees for future swaps.

0x2d2523c292359e7dea2617214cb5ae62c79fb0c0 First pool 2 Dec 2025View on explorer
ALooks safeRegistered, verified, immutable
Pools
2
Dynamic-fee pools
2
Last new pool
11mo
Code size
12,539 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Sets its own swap fee

Pools using it let the hook choose the swap fee instead of a fixed tier.

Runs at pool creation

It runs when a pool is created, often to lock in that pool’s settings.

Safety report

Automated checks, not an audit
✓Not upgradeableNo proxy pattern found: the code is fixed.
✓No owner foundNo owner() function: nobody has an admin switch (as far as the standard check goes).
✓Listed in Uniswap’s hook registryRegistered with Uniswap Labs (a listing, not a security review).
✓Source code publishedThe code on the block explorer matches what's deployed (contract: ImpactHook).
?No audit linkedAutomated checks only.

Pools using this hook

2 total
PairCreatedFeePool ID
USDT / COW 11mo dynamic 0x6ef0…ef7b Tx ↗
USDC / COW 11mo dynamic 0x64ae…a4f2 Tx ↗