How TVL is measured
TVL sums the current market value of all assets deposited into a protocol’s contracts:
- Lending protocols — total supplied assets (not borrowed; borrows are derivative exposure). Aave currently has $20B+ TVL.
- DEXs — total value across all LP pools. Uniswap runs $5-10B TVL depending on market.
- Liquid staking — total ETH staked via the protocol’s contracts. Lido has been the #1 protocol by TVL for most of 2023-2025.
- Bridges — total value locked on the source side, representing tokens backing the wrapped version on the destination chain.
DefiLlama maintains the canonical TVL feed; it computes per-asset values using price oracles (Chainlink, CoinGecko) applied to the on-chain balances of each protocol’s address set.
What TVL tells you (and doesn’t)
TVL rising with a protocol’s token price is usually a healthy signal: users are depositing more, the protocol is producing fees, the token is rewarded by the market. TVL rising purely from the deposited assets appreciating in price is ambiguous — a lending protocol with ETH collateral sees its TVL spike during an ETH rally without any new activity.
Double-counting is a major caveat. A user deposits ETH into Lido (counts toward Lido TVL), receives stETH, deposits stETH into Aave (counts toward Aave TVL), borrows USDC, deposits USDC into Curve (counts toward Curve TVL). Three protocols report TVL, but the original capital is the same ETH. DefiLlama distinguishes “TVL” from “protocol-specific TVL net of re-staking” but most dashboards still show the raw number.
Risks and considerations
TVL flight is often the leading indicator for a protocol in trouble. When TVL drops 30-50% in a week without a corresponding market-wide move, smart capital is leaving first — usually because of a perceived exploit risk, a governance failure, or a competitor launching a better alternative.
For investors, TVL alone is a poor investment signal: protocols with $1B TVL but only $10M/year in real fee revenue are overvalued; protocols with $100M TVL and $50M/year in fees are undervalued. Always pair TVL with revenue (DefiLlama’s “Fees” dashboard) and user metrics before drawing conclusions. TVL is size; it isn’t quality.