What is Total Value Locked (TVL)?

Total value locked, or TVL, measures how much crypto users have deposited into a DeFi protocol, such as funds sitting in its liquidity pools, lending markets, or staking contracts. It is a common yardstick for a protocol’s size and how much trust the market places in it.

This matters because TVL offers a quick sense of scale when comparing protocols. A larger, sustained TVL can suggest more adoption, though it is not a guarantee of safety.

Example: a lending protocol reporting a high TVL means users collectively have a large sum deposited in its smart contracts, signalling significant usage.

Safety note: TVL can be misleading. It rises and falls with token prices, can be inflated by double-counting across layered protocols, and can be temporarily propped up by unsustainable reward incentives that vanish, taking the deposits with them. High TVL does not mean a protocol is audited or immune to hacks and rug pulls. Use it as one signal among many, not proof of legitimacy. Related terms include DeFi, liquidity pool, yield farming, and market cap.