• Martin Marietta Materials average return on investment for 2023 was 8.94, a 28.82% increase from 2022.
• Martin Marietta Materials average return on investment for 2022 was 6.94, a 15.37% increase from 2021.
• Martin Marietta Materials average return on investment for 2021 was 8.2, a 1.23% decline from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.