• Old Dominion Freight Line average operating margin for 2023 was 28.5%, a 0.56% decline from 2022.
• Old Dominion Freight Line average operating margin for 2022 was 28.34%, a 11.57% increase from 2021.
• Old Dominion Freight Line average operating margin for 2021 was 25.4%, a 21.13% increase from 2020.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.