Alliant Energy Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2010-05-11 | 32.920 | 33.990 | 32.880 | 33.700 | 9.694 | 2,135,800 |
| 2010-05-10 | 32.910 | 33.300 | 32.630 | 33.270 | 9.571 | 1,886,600 |
| 2010-05-07 | 32.140 | 32.540 | 31.480 | 31.770 | 9.139 | 3,250,800 |
| 2010-05-06 | 33.250 | 34.110 | 29.200 | 32.190 | 9.260 | 3,029,600 |
| 2010-05-05 | 33.510 | 33.680 | 33.080 | 33.500 | 9.637 | 1,788,600 |
| 2010-05-04 | 32.550 | 34.330 | 31.910 | 33.660 | 9.683 | 1,910,000 |
| 2010-05-03 | 34.280 | 34.590 | 34.080 | 34.530 | 9.933 | 1,569,800 |
| 2010-04-30 | 34.210 | 34.670 | 34.130 | 34.200 | 9.838 | 1,632,800 |
| 2010-04-29 | 33.920 | 34.320 | 33.670 | 34.140 | 9.821 | 2,077,800 |
| 2010-04-28 | 34.110 | 34.240 | 33.660 | 33.820 | 9.729 | 4,027,600 |
| 2010-04-27 | 35.140 | 35.170 | 34.150 | 34.200 | 9.724 | 2,494,400 |
| 2010-04-26 | 35.480 | 35.710 | 35.320 | 35.360 | 10.054 | 1,193,400 |
| 2010-04-23 | 35.770 | 35.770 | 35.410 | 35.630 | 10.131 | 1,265,800 |
| 2010-04-22 | 35.230 | 35.740 | 35.020 | 35.730 | 10.159 | 1,410,000 |
| 2010-04-21 | 34.940 | 35.460 | 34.940 | 35.340 | 10.049 | 1,548,800 |
| 2010-04-20 | 34.660 | 34.990 | 34.460 | 34.950 | 9.938 | 1,256,400 |
| 2010-04-19 | 34.490 | 34.550 | 34.210 | 34.480 | 9.804 | 857,200 |
| 2010-04-16 | 34.450 | 34.700 | 34.330 | 34.490 | 9.807 | 2,421,600 |
| 2010-04-15 | 34.200 | 34.990 | 34.200 | 34.560 | 9.827 | 1,874,800 |
| 2010-04-14 | 33.820 | 34.450 | 33.760 | 34.300 | 9.753 | 1,793,000 |
| 2010-04-13 | 33.690 | 33.760 | 33.510 | 33.760 | 9.599 | 1,203,400 |
| 2010-04-12 | 33.550 | 33.780 | 33.520 | 33.770 | 9.602 | 606,400 |
| 2010-04-09 | 33.710 | 33.710 | 33.080 | 33.610 | 9.557 | 1,109,000 |
| 2010-04-08 | 33.790 | 33.800 | 33.410 | 33.630 | 9.562 | 872,600 |
| 2010-04-07 | 34.010 | 34.120 | 33.620 | 33.870 | 9.631 | 877,600 |
| 2010-04-06 | 33.670 | 34.200 | 33.380 | 34.160 | 9.713 | 1,028,200 |
| 2010-04-05 | 33.820 | 34.150 | 33.750 | 33.930 | 9.648 | 1,043,200 |
| 2010-04-01 | 33.380 | 33.790 | 33.310 | 33.790 | 9.608 | 1,190,000 |
| 2010-03-31 | 33.360 | 33.610 | 33.210 | 33.260 | 9.457 | 1,866,800 |
| 2010-03-30 | 33.550 | 33.570 | 33.300 | 33.380 | 9.491 | 1,207,600 |
| 2010-03-29 | 33.230 | 33.500 | 33.200 | 33.450 | 9.511 | 1,221,400 |
| 2010-03-26 | 33.240 | 33.450 | 33.070 | 33.160 | 9.429 | 2,643,800 |
| 2010-03-25 | 33.480 | 33.530 | 33.110 | 33.190 | 9.437 | 1,204,800 |
| 2010-03-24 | 33.480 | 33.480 | 33.200 | 33.220 | 9.446 | 1,512,200 |
| 2010-03-23 | 32.820 | 33.600 | 32.780 | 33.460 | 9.514 | 2,358,200 |
| 2010-03-22 | 32.600 | 32.930 | 32.460 | 32.830 | 9.335 | 1,554,600 |
| 2010-03-19 | 32.700 | 32.710 | 32.340 | 32.700 | 9.298 | 3,366,400 |
| 2010-03-18 | 33.540 | 33.600 | 32.210 | 32.480 | 9.235 | 4,559,400 |
| 2010-03-17 | 33.630 | 33.820 | 33.500 | 33.790 | 9.608 | 900,800 |
| 2010-03-16 | 33.610 | 33.750 | 33.400 | 33.490 | 9.523 | 2,727,200 |
| 2010-03-15 | 33.660 | 33.870 | 33.490 | 33.610 | 9.557 | 961,000 |
| 2010-03-12 | 33.690 | 33.770 | 33.490 | 33.770 | 9.602 | 2,194,000 |
| 2010-03-11 | 32.970 | 33.530 | 32.910 | 33.530 | 9.534 | 1,072,400 |
| 2010-03-10 | 33.050 | 33.210 | 32.860 | 33.180 | 9.434 | 924,600 |
| 2010-03-09 | 33.080 | 33.200 | 32.830 | 33.080 | 9.406 | 992,800 |
| 2010-03-08 | 32.730 | 33.170 | 32.730 | 33.080 | 9.406 | 1,316,400 |
| 2010-03-05 | 32.730 | 32.900 | 32.520 | 32.850 | 9.341 | 948,800 |
| 2010-03-04 | 32.600 | 32.600 | 32.140 | 32.510 | 9.244 | 1,084,600 |
| 2010-03-03 | 32.660 | 32.840 | 32.390 | 32.470 | 9.233 | 900,400 |
| 2010-03-02 | 32.270 | 32.700 | 32.240 | 32.690 | 9.295 | 1,168,400 |
| 2010-03-01 | 31.780 | 32.210 | 31.780 | 32.210 | 9.159 | 1,084,400 |
| 2010-02-26 | 31.820 | 31.820 | 31.480 | 31.630 | 8.994 | 905,000 |
| 2010-02-25 | 31.710 | 31.750 | 31.280 | 31.730 | 9.022 | 1,317,400 |
| 2010-02-24 | 32.090 | 32.190 | 31.700 | 32.020 | 9.105 | 982,800 |
| 2010-02-23 | 32.280 | 32.450 | 32.020 | 32.080 | 9.122 | 1,144,600 |
| 2010-02-22 | 32.500 | 32.820 | 32.290 | 32.430 | 9.221 | 839,200 |
| 2010-02-19 | 31.780 | 32.490 | 31.740 | 32.420 | 9.218 | 1,004,800 |
| 2010-02-18 | 31.630 | 31.970 | 31.540 | 31.910 | 9.073 | 922,000 |
| 2010-02-17 | 31.670 | 31.870 | 31.330 | 31.600 | 8.985 | 1,070,200 |
| 2010-02-16 | 31.230 | 31.690 | 31.220 | 31.660 | 9.002 | 1,185,600 |
Stock splits
| Date | Split (new : old) |
|---|
| 2016-05-20 | 2:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-07-31 | 0.5350 USD |
| 2026-04-30 | 0.5350 USD |
| 2026-01-30 | 0.5350 USD |
| 2025-10-31 | 0.5075 USD |
| 2025-07-31 | 0.5075 USD |
| 2025-04-30 | 0.5075 USD |
| 2025-01-31 | 0.5075 USD |
| 2024-10-31 | 0.4800 USD |
| 2024-07-31 | 0.4800 USD |
| 2024-04-29 | 0.4800 USD |
| 2024-01-30 | 0.4800 USD |
| 2023-10-30 | 0.4525 USD |
| 2023-07-28 | 0.4525 USD |
| 2023-04-27 | 0.4525 USD |
| 2023-01-30 | 0.4525 USD |
| 2022-10-28 | 0.4275 USD |
| 2022-07-28 | 0.4275 USD |
| 2022-04-28 | 0.4275 USD |
| 2022-01-28 | 0.4275 USD |
| 2021-10-29 | 0.4025 USD |
| 2021-07-29 | 0.4025 USD |
| 2021-04-29 | 0.4025 USD |
| 2021-01-28 | 0.4025 USD |
| 2020-10-29 | 0.3800 USD |
| 2020-07-30 | 0.3800 USD |
| 2020-04-29 | 0.3800 USD |
| 2020-01-30 | 0.3800 USD |
| 2019-10-30 | 0.3550 USD |
| 2019-07-30 | 0.3550 USD |
| 2019-04-29 | 0.3550 USD |
| 2019-01-30 | 0.3550 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.