LNT Net Margin - ALLIANT ENERGY CORP

Complete source-backed net margin history.

Available history: 2008-12-31 to 2026-03-31
Data captured: 2026-09-04

Historical Net Margin

Date	Net Margin
2026-03-31	18.92%
2025-12-31	13.35%
2025-09-30	23.22%
2025-06-30	18.11%
2025-03-31	18.88%
2024-12-31	15.37%
2024-09-30	27.29%
2024-06-30	9.73%
2024-03-31	15.32%
2023-12-31	12.59%
2023-03-31	15.13%
2022-12-31	10.11%
2022-09-30	20.00%
2022-06-30	16.86%
2022-03-31	17.98%
2021-12-31	10.25%
2021-09-30	25.29%
2021-06-30	17.87%
2021-03-31	19.31%
2020-12-31	8.08%
2020-09-30	27.07%
2020-06-30	17.82%
2020-03-31	18.89%
2019-12-31	12.84%
2019-09-30	23.13%
2019-06-30	12.29%
2019-03-31	12.94%
2018-12-31	10.02%
2018-09-30	22.41%
2018-06-30	12.61%
2018-03-31	13.48%
2017-12-31	11.25%
2017-09-30	18.90%
2017-06-30	12.65%
2017-03-31	12.06%
2016-12-31	8.18%
2016-09-30	14.17%
2016-06-30	11.45%
2016-03-31	11.74%
2015-12-31	4.95%
2015-09-30	20.30%
2015-06-30	9.77%
2015-03-31	11.05%
2014-12-31	7.77%
2014-09-30	18.49%
2014-06-30	8.57%
2014-03-31	11.61%
2013-12-31	8.18%
2013-09-30	18.49%
2013-06-30	9.44%
2013-03-31	9.32%
2012-12-31	9.63%
2012-09-30	17.43%
2012-06-30	10.11%
2012-03-31	5.08%
2011-12-31	8.02%
2011-09-30	14.46%
2011-06-30	7.76%
2011-03-31	9.09%
2010-12-31	7.66%
2010-09-30	16.15%
2010-06-30	7.08%
2010-03-31	5.40%
2009-12-31	6.83%
2009-09-30	-4.49%
2009-06-30	4.56%

Annual Net Margin

Date	Net Margin
2025-12-31	18.57%
2024-12-31	17.33%
2023-12-31	17.46%
2022-12-31	16.31%
2021-12-31	18.37%
2020-12-31	18.27%
2019-12-31	15.54%
2018-12-31	14.77%
2017-12-31	13.82%
2016-12-31	11.50%
2015-12-31	11.94%
2014-12-31	11.74%
2013-12-31	11.48%
2012-12-31	10.85%
2011-12-31	9.99%
2010-12-31	9.39%
2009-12-31	3.78%
2008-12-31	8.36%