MarketHoursFeeHook

RobinhoodRegistered

A Uniswap v4 hook that applies a dynamic LP fee based on US equity market sessions (regular, extended, or closed), charging a base fee plus a time-of-day surcharge derived from block.timestamp and US Eastern time, to compensate LPs for stale-price risk outside trading hours. The hook holds no funds, has no owner, and cannot revert inside a swap.

0xd2d0b89056883f239b3b18e2a3fd5f2287ffb080 First pool 6 Sept 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

2mo

Code size

4,533 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: MarketHoursFeeHook).

?No audit linkedAutomated checks only.

Pools using this hook

2 total

PairCreatedFeePool ID

LLY / SHROOM 2mo dynamic 0xa618…dbf7 Tx ↗

USDG / SHROOM 2mo dynamic 0xab30…efd4 Tx ↗