Measuring the DeFi Control Layer: Governance, Liquidations, and Lending Flows

Decentralized finance (DeFi) is often defended as software rather than regulated intermediation. We examine whether functional control over DeFi applications can be measured directly by tracking address-level concentration in the channels through which sophisticated actors capture rents: governance over risk parameters, liquidations, lending flows, supplier spreads, MEV, and routing. From prior work on AMMs, MEV, lending, and DAO governance, we derive three predictions about how concentration should vary across channels, protocols, and applications.

We test the predictions using six data sources: 1,142 risk-tagged Snapshot proposals across 15 governance spaces, $2.05 billion in liquidations across five lending markets, $569.4 billion in actor-level lending flows, DefiLlama rent series, a Uniswap v3 LP sample, and 250 Aave forum risk topics. The evidence supports all three predictions. Discretionary channels concentrate sharply but with protocol-level heterogeneity: the median top-five voting-power share across risk proposals is 96.0 percent, with Aave at 91.2 percent, Uniswap at 84.3 percent, and Radiant at 57.7 percent.

Lending markets concentrate more than exchanges in governance, and Compound V3’s top liquidator captures 55.8 percent of volume while Aave V3 has 868 active liquidators. Within lending markets, the deposit base is broad while borrowing is narrow: the Aave V3 top-five borrow share is 84.8 percent against a 17.8 percent deposit share. We treat the evidence as channel-specific screening inputs rather than entity-level control findings, and discuss disclosure, registration, and safe-harbor implications.