DynamicFeeHook

UnichainRegistered

Adjusts LP swap fees dynamically based on on-chain price volatility using EWMA of sqrt price changes; collects a configurable owner-controlled protocol fee share from the spread above the base fee into a treasury address. In practice, the afterInitialize flag is absent from the address bitmask, so pool configs are never populated and the hook always returns a hardcoded 3000 bps fallback fee.

0x1f998f20c0f10ad0017639e60aa39befcc1b20c0 First pool 10 Mar 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

8mo

Code size

10,347 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.

!Has an adminowner() is 0x22bc…a621. That account can usually change fees, limits or allowlists after you trade.

✓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: DynamicFeeHook).

?No audit linkedAutomated checks only.

Pools using this hook

1 total

PairCreatedFeePool ID

USDC / WETH 8mo dynamic 0xad49…3a6b Tx ↗