• Ameren average return on investment for 2023 was 4.56, a 0.66% decline from 2022.
• Ameren average return on investment for 2022 was 4.53, a 2.16% increase from 2021.
• Ameren average return on investment for 2021 was 4.63, a 1.49% 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.