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What is MEV (Maximal Extractable Value)?
MEV is profit that block producers can extract by reordering, inserting, or censoring transactions. It's why your DEX swap sometimes gets a worse price than expected.
Full Explanation
Maximal Extractable Value is the profit block builders/validators can make by manipulating transaction ordering within a block. Common MEV strategies: frontrunning (buying before your large buy to profit from the price impact), sandwich attacks (buying before and selling after your swap), and liquidation sniping. MEV is a hidden tax on DeFi users. Protection: use MEV-protected RPCs (like Flashbots Protect) or set tight slippage on DEX swaps.
Related Terms
Last updated: 2026-03-21
