Order execution refers to the process of completing a buy or sell order in financial markets. When a trader places an order, it is sent to a broker or trading platform, which then matches it with a counterparty willing to take the opposite position. The speed and efficiency of this process can significantly impact the price at which the order is filled. There are different types of order execution methods, including market orders, which are executed immediately at the current market price, and limit orders, which are executed only when the price reaches a specified level. Effective order execution is crucial for traders to achieve their desired outcomes in the market.