NASDAQ:LNT | Historical Stock Price | ALLIANT ENERGY CORP

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1973-02-21 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.27$9.17$25.74$72.25$202.84$569.441973-02-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$51.53$301.24916,200——
2020-12-30$50.76$296.74563,800——
2020-12-29$50.48$295.101,048,600——
2020-12-28$50.31$294.11743,600——
2020-12-24$50.02$292.41743,200——
2020-12-23$49.54$289.611,005,300——
2020-12-22$50.18$293.351,059,700——
2020-12-21$50.34$294.281,692,300——
2020-12-18$51.05$298.432,601,900——
2020-12-17$51.73$302.411,224,100——
2020-12-16$51.64$301.881,378,800——
2020-12-15$52.38$306.211,101,600——
2020-12-14$51.34$300.13677,700——
2020-12-11$51.71$302.29810,200——
2020-12-10$51.86$303.171,016,100——
2020-12-09$52.30$305.741,161,800——
2020-12-08$52.76$308.431,177,000——
2020-12-07$53.34$311.821,267,000——
2020-12-04$52.88$309.131,270,000——
2020-12-03$53.36$311.941,485,100——
2020-12-02$53.82$314.631,412,100——
2020-12-01$53.37$312.001,355,900——
2020-11-30$52.60$307.492,092,700——
2020-11-27$52.76$308.43461,200——
2020-11-25$53.51$312.811,282,500——
2020-11-24$53.37$312.001,208,600——
2020-11-23$52.75$308.371,049,000——
2020-11-20$52.87$309.071,667,800——
2020-11-19$52.47$306.731,022,600——
2020-11-18$53.06$310.181,501,800——
2020-11-17$54.73$319.951,405,600——
2020-11-16$56.44$329.941,032,600——
2020-11-13$56.20$328.54978,000——
2020-11-12$56.13$328.131,282,000——
2020-11-11$57.42$335.67733,900——
2020-11-10$56.96$332.981,132,500——
2020-11-09$56.63$331.051,551,000——
2020-11-06$54.57$319.011,047,800——
2020-11-05$54.88$320.821,145,900——
2020-11-04$55.34$323.511,552,700——
2020-11-03$56.44$329.941,951,500——
2020-11-02$56.69$331.401,342,500——
2020-10-30$55.28$323.161,348,000——
2020-10-29$55.57$324.86967,500——
2020-10-28$55.52$322.341,267,500——
2020-10-27$57.16$331.86978,600——
2020-10-26$56.83$329.95797,800——
2020-10-23$56.67$329.02832,200——
2020-10-22$56.46$327.801,256,000——
2020-10-21$55.64$323.041,527,000——
2020-10-20$55.14$320.14875,600——
2020-10-19$54.72$317.701,599,800——
2020-10-16$54.89$318.681,339,700——
2020-10-15$54.55$316.71874,600——
2020-10-14$54.05$313.81698,000——
2020-10-13$54.08$313.98898,600——
2020-10-12$54.72$317.701,271,800——
2020-10-09$54.74$317.81881,300——
2020-10-08$55.18$320.371,405,500——
2020-10-07$54.08$313.981,063,000——
2020-10-06$54.39$315.781,334,900——
2020-10-05$53.31$309.511,463,100——
2020-10-02$53.09$308.231,491,700——
2020-10-01$52.33$303.821,596,600——
2020-09-30$51.65$299.871,583,600——
2020-09-29$51.08$296.56968,400——
2020-09-28$51.49$298.941,493,000——
2020-09-25$51.35$298.132,044,100——
2020-09-24$49.93$289.891,253,400——
2020-09-23$49.83$289.311,196,600——
2020-09-22$50.01$290.351,322,600——
2020-09-21$49.83$289.311,805,000——
2020-09-18$50.98$295.982,342,500——
2020-09-17$52.18$302.951,167,300——
2020-09-16$53.06$308.061,480,900——
2020-09-15$52.76$306.321,518,000——
2020-09-14$52.33$303.822,246,000——
2020-09-11$51.86$301.092,009,700——
2020-09-10$52.08$302.371,977,900——
2020-09-09$53.78$312.242,710,300——
2020-09-08$52.65$305.681,839,000——
2020-09-04$53.29$309.401,763,400——
2020-09-03$53.97$313.341,611,600——
2020-09-02$54.66$317.352,170,100——
2020-09-01$53.48$310.50996,000——
2020-08-31$54.15$314.391,349,300——
2020-08-28$54.32$315.38836,200——
2020-08-27$54.00$313.52907,700——
2020-08-26$54.04$313.751,402,800——
2020-08-25$54.25$314.97875,700——
2020-08-24$54.65$317.29838,900——
2020-08-21$54.08$313.98943,800——
2020-08-20$53.62$311.31882,900——
2020-08-19$53.82$312.47975,900——
2020-08-18$53.65$311.49799,300——
2020-08-17$53.90$312.941,131,200——
2020-08-14$53.77$312.18688,300——
2020-08-13$53.98$313.401,181,700——
2020-08-12$53.93$313.11884,500——
2020-08-11$53.66$311.54911,400——
2020-08-10$55.35$321.361,130,500——
2020-08-07$54.72$317.701,476,000——
2020-08-06$53.34$309.691,278,300——
2020-08-05$52.87$306.961,709,900——
2020-08-04$53.80$312.361,176,000——
2020-08-03$53.51$310.67785,900——
2020-07-31$53.85$312.651,198,200——
2020-07-30$53.77$312.181,030,900——
2020-07-29$54.01$311.37640,600——
2020-07-28$53.62$309.121,108,600——
2020-07-27$52.87$304.801,234,600——
2020-07-24$53.12$306.241,418,400——
2020-07-23$53.25$306.991,600,200——
2020-07-22$52.55$302.951,449,400——
2020-07-21$50.73$292.461,159,100——
2020-07-20$50.45$290.85801,600——
2020-07-17$50.77$292.691,328,200——
2020-07-16$49.73$286.69870,600——
2020-07-15$49.37$284.621,283,800——
2020-07-14$49.49$285.311,860,800——
2020-07-13$48.95$282.202,216,300——
2020-07-10$49.04$282.72895,100——
2020-07-09$48.25$278.161,346,600——
2020-07-08$48.51$279.661,344,000——
2020-07-07$48.47$279.431,706,100——
2020-07-06$49.00$282.491,532,100——
2020-07-02$49.42$284.911,148,100——
2020-07-01$48.76$281.10959,700——
2020-06-30$47.84$275.801,489,000——
2020-06-29$47.40$273.261,321,000——
2020-06-26$47.05$271.243,342,600——
2020-06-25$46.77$269.631,753,400——
2020-06-24$47.12$271.652,309,500——
2020-06-23$47.89$276.091,056,700——
2020-06-22$48.49$279.551,270,400——
2020-06-19$47.99$276.664,699,200——
2020-06-18$49.03$282.66881,000——
2020-06-17$48.91$281.971,170,100——
2020-06-16$49.00$282.491,396,200——
2020-06-15$48.92$282.031,062,300——
2020-06-12$48.55$279.891,614,700——
2020-06-11$48.69$280.701,609,600——
2020-06-10$50.72$292.401,113,800——
2020-06-09$50.77$292.691,083,900——
2020-06-08$52.32$301.631,378,500——
2020-06-05$50.64$291.941,103,100——
2020-06-04$50.10$288.831,666,400——
2020-06-03$51.04$294.251,361,900——
2020-06-02$50.16$289.171,553,100——
2020-06-01$49.46$285.14989,300——
2020-05-29$49.36$284.561,858,800——
2020-05-28$48.86$281.681,276,200——
2020-05-27$47.33$272.861,430,900——
2020-05-26$46.91$270.441,071,800——
2020-05-22$46.38$267.38875,000——
2020-05-21$46.03$265.36983,700——
2020-05-20$46.66$269.00882,000——
2020-05-19$46.32$267.041,075,100——
2020-05-18$47.74$275.221,170,400——
2020-05-15$45.95$264.903,747,400——
2020-05-14$45.94$264.851,510,800——
2020-05-13$45.86$264.381,966,100——
2020-05-12$46.40$267.501,317,100——
2020-05-11$47.08$271.421,238,300——
2020-05-08$47.99$276.661,312,000——
2020-05-07$46.24$266.571,403,400——
2020-05-06$46.17$266.171,716,500——
2020-05-05$48.02$276.84976,700——
2020-05-04$47.50$273.841,296,500——
2020-05-01$47.25$272.401,391,500——
2020-04-30$48.55$279.891,377,500——
2020-04-29$49.41$284.852,091,900——
2020-04-28$50.65$289.811,276,300——
2020-04-27$50.34$288.031,512,700——
2020-04-24$49.98$285.971,363,300——
2020-04-23$50.09$286.601,087,700——
2020-04-22$51.03$291.981,100,700——
2020-04-21$49.70$284.371,047,100——
2020-04-20$49.99$286.031,145,300——
2020-04-17$52.87$302.51704,000——
2020-04-16$51.61$295.30732,300——
2020-04-15$51.50$294.671,003,200——
2020-04-14$53.62$306.801,503,700——
2020-04-13$51.28$293.41725,400——
2020-04-09$53.14$304.061,351,200——
2020-04-08$51.23$293.131,969,700——
2020-04-07$48.03$274.822,453,100——
2020-04-06$47.83$273.671,321,600——
2020-04-03$45.15$258.341,487,100——
2020-04-02$46.92$268.471,662,100——
2020-04-01$44.97$257.311,889,300——
2020-03-31$48.29$276.302,878,200——
2020-03-30$50.57$289.352,166,600——
2020-03-27$47.75$273.211,759,900——
2020-03-26$47.90$274.072,889,300——
2020-03-25$44.18$252.793,493,100——
2020-03-24$43.86$250.964,065,700——
2020-03-23$39.99$228.812,853,900——
2020-03-20$40.70$232.883,291,100——
2020-03-19$45.03$257.652,256,800——
2020-03-18$48.97$280.202,835,800——
2020-03-17$52.37$299.654,083,100——
2020-03-16$47.56$272.134,457,000——
2020-03-13$50.90$291.242,375,900——
2020-03-12$48.18$275.683,107,600——
2020-03-11$51.59$295.193,122,800——
2020-03-10$54.00$308.983,358,600——
2020-03-09$54.16$309.893,383,800——
2020-03-06$57.49$328.942,469,800——
2020-03-05$57.39$328.371,618,100——
2020-03-04$57.86$331.061,672,600——
2020-03-03$54.77$313.382,248,700——
2020-03-02$55.36$316.762,205,300——
2020-02-28$52.12$298.223,409,300——
2020-02-27$54.95$314.412,215,400——
2020-02-26$57.83$330.892,267,800——
2020-02-25$58.01$331.921,873,800——
2020-02-24$58.84$336.671,655,600——
2020-02-21$59.14$338.392,395,200——
2020-02-20$59.57$340.851,315,500——
2020-02-19$59.47$340.27950,300——
2020-02-18$60.17$344.28959,400——
2020-02-14$59.74$341.821,144,500——
2020-02-13$59.38$339.761,419,800——
2020-02-12$58.66$335.641,104,100——
2020-02-11$58.39$334.091,073,900——
2020-02-10$58.42$334.271,250,900——
2020-02-07$58.33$333.751,249,700——
2020-02-06$58.53$334.902,040,700——
2020-02-05$58.56$335.071,585,800——
2020-02-04$58.66$335.641,304,900——
2020-02-03$59.52$340.561,246,100——
2020-01-31$59.36$339.641,154,200——
2020-01-30$59.42$339.991,146,400——
2020-01-29$59.08$335.871,230,600——
2020-01-28$59.15$336.271,839,600——
2020-01-27$58.83$334.451,156,500——
2020-01-24$58.93$335.021,290,500——
2020-01-23$58.46$332.341,328,200——
2020-01-22$57.75$328.311,207,700——
2020-01-21$57.36$326.091,821,400——
2020-01-17$57.16$324.952,231,600——
2020-01-16$56.78$322.791,304,600——
2020-01-15$56.26$319.841,434,200——
2020-01-14$55.62$316.201,138,500——
2020-01-13$55.58$315.971,168,700——
2020-01-10$55.07$313.071,289,200——
2020-01-09$54.53$310.001,869,700——
2020-01-08$53.92$306.531,504,300——
2020-01-07$53.80$305.851,815,100——
2020-01-06$53.75$305.572,585,200——
2020-01-03$53.80$305.85976,100——
2020-01-02$53.63$304.891,387,300——