The Total Value Locked (TVL) in the context of decentralized finance (DeFi) defines the total value of assets locked in DeFi protocols and smart contracts. In other words, it measures the total amount of locked and utilized cryptocurrencies in various decentralized financial services, including liquidity pools, borrowing and lending protocols, decentralized exchange (DEX) platforms, among others. TVL is often seen as an indicator of the popularity and adoption of different DeFi protocols. It acts as a barometer of this crypto ecosystem. Indeed, according to recent data, the TVL of DeFi is in its best shape thanks to the dynamism of Ethereum. This article explains the ins and outs of this trend.