Return on investment (ROI), also called return on invested capital, is the profit a company earns for every dollar of long-term capital from both lenders and shareholders, shown as a percentage. It is net income divided by long-term debt plus shareholder equity, and the table shows both amounts. Because debt is included in the base, ROI does not rise just because a company replaces equity with borrowing, which sets it apart from ROE. Quarterly points divide the trailing four quarters of net income by the balance at that quarter end; annual points divide the filed fiscal-year net income by the fiscal-year-end balance.
ALLIANT ENERGY CORP roi for the quarter ending 2026-03-31 was 4.45%, a 1.92% increase year-over-year.
ALLIANT ENERGY CORP roi for the quarter ending 2025-12-31 was 4.18%, a 2.17% increase year-over-year.
ALLIANT ENERGY CORP roi for the quarter ending 2025-09-30 was 4.30%, a 12.58% increase year-over-year.
ALLIANT ENERGY CORP roi for the quarter ending 2025-06-30 was 4.58%, a 20.91% increase year-over-year.
ALLIANT ENERGY CORP roi for fiscal 2025 was 4.18%, a 2.17% increase from fiscal 2024.
ALLIANT ENERGY CORP roi for fiscal 2024 was 4.09%, a 7.91% decline from fiscal 2023.
ALLIANT ENERGY CORP roi for fiscal 2023 was 4.45%, a 6.98% decline from fiscal 2022.
ALLIANT ENERGY CORP roi for fiscal 2022 was 4.78%, a 5.27% decline from fiscal 2021.