Front Running Tactics

Front running tactics refer to the practice where a market participant with advance knowledge of pending orders executes their own trades ahead of those orders to profit from the anticipated price movement. In traditional finance, this often involves brokers using client order information for their own benefit.

In the cryptocurrency domain, this is frequently manifested as Miner Extractable Value or Maximal Extractable Value, where validators or searchers manipulate transaction ordering within a block to capture arbitrage opportunities or liquidate positions before the pending transaction is finalized. By inserting their own transaction before a large buy or sell order, the front runner ensures they benefit from the price impact caused by that order.

This behavior exploits the latency between order submission and final inclusion in a blockchain ledger or centralized order book. It is a form of market manipulation that undermines fairness and price discovery efficiency.

The practice is highly adversarial, relying on technical speed and visibility into the mempool. It forces participants to use protective measures like private transaction relays or slippage tolerance settings to mitigate risk.

Understanding these tactics is essential for anyone navigating decentralized finance, as it directly impacts the execution quality of every trade.