Maximal Extractable Value

Extraction

This concept refers to the maximum profit a block producer, such as a validator in Proof-of-Stake systems, can extract from the set of transactions within a single block, beyond the standard block reward and gas fees. It is a function of the producer’s ability to observe pending transactions and strategically sequence them within the block they are proposing. The practice often involves front-running or sandwiching trades in decentralized exchanges.