Execution Probability

Execution Probability is the statistical likelihood that a limit order will be filled at the specified price before the market moves beyond the limit level. It is a function of the current order book, historical volatility, and the distance of the limit price from the mid-market price.

Traders must weigh the trade-off between the certainty of execution and the desire for a better price. High execution probability usually requires placing orders closer to the current market price, which may reduce potential profit margins.

Low execution probability occurs when orders are placed far from the current price, hoping for a market reversal. Advanced traders use predictive modeling to estimate this probability and optimize their order placement strategies.

It is a fundamental aspect of algorithmic trading and order management systems.