• O'Reilly Automotive average net profit margin for 2024 was 14.54%, a 2.15% decline from 2023.
• O'Reilly Automotive average net profit margin for 2023 was 14.86%, a 3.94% decline from 2022.
• O'Reilly Automotive average net profit margin for 2022 was 15.47%, a 3.37% decline from 2021.

Net profit margin can be defined as net Income as a portion of total sales revenue.