Market execution involves processing trades immediately at the best available market prices, prioritizing speed over price optimization. This execution method ensures immediate fills but may result in slippage during volatile conditions. Market execution is preferred when immediate position entry or exit is more important than achieving specific price levels.

Market execution quality depends on market liquidity, volatility conditions, and broker execution capabilities. During high volatility periods, market execution may result in significant price differences between expected and actual fill prices. Understanding market execution characteristics helps traders select appropriate order types based on urgency and market conditions.

Real-world example: A trader uses market execution to immediately exit a EUR/USD position during breaking news, accepting a 2-pip slippage to ensure instant execution rather than risking further losses from delayed order processing.