{"address":"0x14637f24f9c778aef1637ba836ff8580395fe0c4","chain":"robinhood","chainName":"Robinhood Chain","chains":["robinhood"],"name":"MarketSessionFeeHook","listed":true,"description":"A Uniswap v4 hook that applies dynamic LP fees based on NYSE market session schedules (2026–2050), ranging from 4.5 bps during regular hours to 74.5 bps when markets are closed. It also charges an additional 0.5 bp hook fee on each swap's unspecified amount, which is taken via PoolManager and sent to a configured fee recipient.","deployer":null,"creationTx":null,"codeBytes":4456,"implementation":null,"verified":true,"audit":null,"upgradeable":false,"swapAccess":"none","dynamicFee":true,"customData":false,"flags":["beforeInitialize","beforeSwap","afterSwap","afterSwapReturnsDelta"],"flagBits":8388,"lines":[{"key":"afterSwapReturnsDelta","level":"red","text":"Can take a fee from your output","detail":"After the pool fills your swap, the hook can keep part of what you were about to receive."},{"key":"beforeSwap","level":"amber","text":"Runs code before your swap and can block it","detail":"The hook is called before every swap. It can revert, which makes your swap fail."},{"key":"afterSwap","level":"amber","text":"Runs code after your swap and can block it","detail":"The hook is called after every swap. It can revert, which undoes your swap."},{"key":"beforeInitialize","level":"grey","text":"Runs code when a pool is created","detail":"Called once, when someone creates a pool with this hook."},{"key":"dynamicFee","level":"amber","text":"Can charge a different fee on each swap","detail":"The pool's LP fee is dynamic: the hook sets it, swap by swap."}],"score":65,"scoreItems":[{"label":"Can change swap amounts","points":-25},{"label":"Dynamic fee","points":-10}],"pools":2,"activePools":0,"swaps24":0,"swaps7":0,"volume24Usd":0,"volume7Usd":0,"firstSeenBlock":51478620,"firstSeen":1788241380,"ageDays":55.40126157407408,"poolList":[{"id":"0xac143e569de6d705bd674e44ca933868865e099cb49f0c3747ae845bf2d5a609","t0":{"a":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","s":"USDG","d":6,"usd":1},"t1":{"a":"0xd0601ce157db5bdc3162bbac2a2c8af5320d9eec","s":"NVDA","d":18,"usd":217.3969186372436},"fee":8388608,"ts":10,"b":51494714,"t":1788243006,"s7":0,"s24":0,"v7":0,"u":0},{"id":"0x29ad066a0dd96c17576c856db9f8f6a40c79bbda51d8263170d5b2207efb2197","t0":{"a":"0x5fc5360d0400a0fd4f2af552add042d716f1d168","s":"USDG","d":6,"usd":1},"t1":{"a":"0xd0601ce157db5bdc3162bbac2a2c8af5320d9eec","s":"NVDA","d":18,"usd":217.3969186372436},"fee":8388608,"ts":60,"b":51478620,"t":1788241380,"s7":0,"s24":0,"v7":0,"u":0}],"daily":null,"days":7,"probe":null,"snapshot":{"block":98513114,"ts":1793028049}}