In Options Trading, What Is the Risk of Using a Market Order versus a Limit Order?

Using a Market Order in options trading carries the risk of execution at an unexpectedly poor price, especially for less liquid options. Since options can have wide bid-ask spreads and shallow depth, a market order could "walk the book" and be filled at prices significantly worse than anticipated, resulting in high slippage.

A Limit Order controls this risk by guaranteeing the execution price, though it risks non-execution.