Execution Quality

Execution quality measures how closely your actual trade fills match the theoretical fair value of an option. It encompasses several factors: bid-ask spread (the cost of crossing from bid to ask), fill rate (how often your limit orders get filled), and slippage (the difference between your expected price and actual execution price). High execution quality means you can enter and exit positions near the midpoint without significant price impact.

For options traders, execution quality is often the hidden cost that separates theoretical profits from real-world results. A strategy might look great on paper with a 2% edge, but if execution costs eat 3%, you're actually losing money. This is especially true for multi-leg strategies where you cross the spread on each leg. Market makers widen spreads when liquidity is thin, volatility is high, or markets are moving fast — exactly when many traders want to execute.

Options Pilot evaluates execution quality through its Liquidity pillar, which combines ATM spread percentage, total open interest, volume depth, and the Liquidity Tier classification. Stocks in the highest liquidity tier offer the best execution quality, meaning you can trade any strategy type without worrying about spread erosion. Lower-tier stocks may still offer great opportunities but require more careful order management.