Searcher (MEV)

An MEV actor that monitors on-chain state and pending transactions to identify profitable opportunities such as arbitrage, liquidations, or backruns, and submits transaction bundles through Jito's Block Engine to capture that value. Searchers compete on speed and strategy, paying tips to validators for bundle inclusion priority. Searcher operations range from beneficial (keeping markets efficient through arbitrage) to extractive (sandwich attacks that harm regular users).