What is MEV and What is MEV trading


MEV, or Miner Extractable Value, is a term that has been gaining popularity in the cryptocurrency space. It is a measure of the potential value that miners can extract from the transactions in a given block. In simple terms, it is the amount of profit that a miner can make by reordering, front-running, or censoring transactions in a block. MEV has become an important factor in the decentralized finance (DeFi) ecosystem, where users interact with smart contracts to execute various financial operations. In this blog, we will discuss what MEV is and how it relates to MEV trading.

What is MEV?

MEV is a term that was first introduced by Phil Daian and others in a research paper published in 2019. It refers to the amount of profit that miners can extract from the transactions in a given block by manipulating the order of the transactions or censoring certain transactions. MEV is calculated as the difference between the maximum revenue that a miner can extract from a block and the revenue that the miner would earn by simply including the transactions in the block in the order they were received.

MEV is a result of the design of the Ethereum blockchain, which allows miners to determine the order of transactions in a block. This means that miners can prioritize transactions based on the fees offered by users, which creates an opportunity for miners to extract additional profits beyond the block rewards and transaction fees. MEV can be positive or negative, depending on the order in which transactions are included in a block.

How does MEV relate to DeFi?

DeFi is a rapidly growing ecosystem in the cryptocurrency space, where users can access various financial services without the need for intermediaries. Smart contracts are used to execute financial operations such as lending, borrowing, trading, and more. MEV has become an important factor in the DeFi ecosystem because it can significantly impact the profitability and security of smart contracts.

MEV can affect the profitability of DeFi protocols in several ways. For example, if a miner extracts MEV from a transaction by front-running a trade on a decentralized exchange, the trader may end up paying a higher price for the asset than they intended, which reduces their profits. Similarly, if a miner censors a transaction, it can prevent a user from executing a profitable trade or taking advantage of a DeFi opportunity.

MEV can also affect the security of smart contracts in the DeFi ecosystem. For example, if a miner extracts MEV by reordering transactions in a way that exploits a vulnerability in a smart contract, it can result in a loss of funds for users. This is why MEV has become a topic of concern for DeFi developers and researchers, who are working on ways to mitigate its impact on the ecosystem.

What is MEV trading?

MEV trading refers to the practice of using MEV to generate profits in the cryptocurrency market. MEV trading can take many forms, but the most common strategy is to use advanced algorithms to predict the order in which transactions will be included in a block and to place trades accordingly. MEV traders can make profits by front-running trades, executing profitable trades before other traders can, or by exploiting vulnerabilities in smart contracts.

MEV trading has become an important aspect of the cryptocurrency market, with some estimates suggesting that it accounts for a significant portion of the profits earned by cryptocurrency traders. However, MEV trading is also controversial because it can result in unfair advantages for traders and can harm the security of the DeFi ecosystem.

Some experts argue that MEV trading is a necessary component of the cryptocurrency market, as it provides liquidity and helps to price assets more efficiently. However, others argue that MEV trading is harmful to the ecosystem and that it should be regulated or eliminated altogether.


MEV is a complex and evolving concept in the cryptocurrency