Uniswap

Uniswap v4’s hook architecture moves regulatory risk from the AMM to the developer who writes the callback — and the analysis turns on custody, discretion, and revenue. This deep dive maps hook archetypes against FinCEN money transmission rules, CFTC leverage enforcement, Howey, and OFAC obligations, drawing on Risley v. Universal Navigation, the Opyn/ZeroEx/Deridex settlements, Van Loon v. Treasury, and the 2025 Storm verdict. Includes a hook-by-hook risk matrix and nine practical rules for builders.