Uniswap v4 Hooks Spark New Business Layer for Programmable Trading Rules

The Hook economy is quietly becoming Uniswap's fee engine: v4 pools now carry the majority of protocol fees despite being a minority of pools by count, and the volume concentration in Hook-enabled pools on Robinhood Chain suggests customization is where liquidity actually settles. That shifts the competitive moat from pool design toward tooling and Hook developers, a layer Uniswap itself is now entering with its own volatility-based fee Hook. The open question is whether Hook-driven fee differentiation spreads beyond a handful of flagship pools or stays a specialist niche, and whether Hook concentration creates new governance and security surface as third-party code touches core trading logic.