Total Value Locked (TVL) measures the aggregate dollar value of all assets deposited in a DeFi protocol, serving as a rough proxy for protocol adoption, trust, and liquidity depth. Higher TVL generally indicates more capital deployed, enabling larger trades with less slippage and more lending capacity. TVL became the primary metric for comparing DeFi protocols during the 2020-2021 growth era.
However, TVL has major limitations as an evaluation metric. It fluctuates with asset prices independent of actual deposits: if ETH drops 50%, protocols holding ETH see their TVL halve even without a single withdrawal. This creates misleading signals during market downturns.
TVL can be artificially inflated through recursive deposits, where borrowed assets are redeposited as collateral, and through liquidity mining programs that attract mercenary capital that leaves when incentives end. TVL also doesn't indicate protocol revenue, usage, or sustainability, a protocol with $1B TVL might generate less fee revenue than one with $100M of actively traded liquidity.
Comparing TVL across protocols requires understanding what's being measured: lending TVL (deposits available to borrow) differs from AMM TVL (trading liquidity) differs from staking TVL (locked for validation). Despite its flaws, TVL remains a useful directional indicator of protocol scale and capital trust.
Interactive Visualizer
Total Value Locked (TVL) Explorer
Explore how TVL changes with protocol growth, asset prices, and time. See how this key DeFi metric can be influenced by factors beyond actual adoption.