Quick Answer
ALLIANT ENERGY CORP reported Diluted EPS of $3.14 per share for fiscal year 2025.
ALLIANT ENERGY CORP Diluted EPS — Annual History
| Fiscal Year | Diluted EPS | YoY Change |
|---|---|---|
| 2025 | $3.14 | +16.7% |
| 2024 | $2.69 | -3.2% |
| 2023 | $2.78 | +1.8% |
| 2022 | $2.73 | +3.8% |
| 2021 | $2.63 | +6.5% |
| 2020 | $2.47 | +6.0% |
| 2019 | $2.33 | +6.4% |
| 2018 | $2.19 | +10.1% |
| 2017 | $1.99 | -27.4% |
| 2011 | $2.74 | +5.4% |
| 2010 | $2.60 | +157.4% |
| 2009 | $1.01 | -61.3% |
| 2008 | $2.61 | — |
Quarterly Diluted EPS
| Quarter Ending | Diluted EPS | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $1.09 | -5.2% | +60.3% |
| June 30, 2025 | $0.68 | +100.0% | -18.1% |
| March 31, 2025 | $0.83 | +33.9% | -27.8% |
| September 30, 2024 | $1.15 | +12.7% | +238.2% |
| June 30, 2024 | $0.34 | -46.9% | -45.2% |
| March 31, 2024 | $0.62 | -4.6% | -39.2% |
| September 30, 2023 | $1.02 | +13.3% | +59.4% |
| June 30, 2023 | $0.64 | +1.6% | -1.5% |
- ALLIANT ENERGY CORP showed an increase of +16.7% in Diluted EPS compared to the prior fiscal year.
- Over the 2008–2025 period, ALLIANT ENERGY CORP’s diluted eps has grown by 20.3% (from $2.61 per share to $3.14 per share).
- The most recent figure is from ALLIANT ENERGY CORP’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 20, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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