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 — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$61.47$370.11580,400
2021-12-30$61.45$369.99601,500
2021-12-29$61.11$367.94519,200
2021-12-28$60.68$365.35475,300
2021-12-27$59.99$361.20458,800
2021-12-23$59.55$358.55609,600
2021-12-22$59.58$358.73716,000
2021-12-21$59.40$357.64794,700
2021-12-20$59.93$360.83930,400
2021-12-17$59.77$359.872,205,100
2021-12-16$60.98$367.16854,800
2021-12-15$60.49$364.211,199,200
2021-12-14$59.54$358.491,253,700
2021-12-13$59.65$359.151,038,500
2021-12-10$58.89$354.57872,200
2021-12-09$58.14$350.06921,900
2021-12-08$58.33$351.201,000,100
2021-12-07$58.33$351.201,046,300
2021-12-06$57.93$348.79982,200
2021-12-03$56.94$342.831,535,600
2021-12-02$55.93$336.75953,600
2021-12-01$55.36$333.321,285,000
2021-11-30$54.79$329.893,439,400
2021-11-29$57.28$344.881,044,000
2021-11-26$56.74$341.63638,100
2021-11-24$57.62$346.93774,700
2021-11-23$57.86$348.371,135,400
2021-11-22$57.87$348.431,516,400
2021-11-19$56.79$341.933,359,900
2021-11-18$55.25$332.661,335,800
2021-11-17$56.11$337.831,319,500
2021-11-16$55.99$337.111,365,800
2021-11-15$56.24$338.621,341,200
2021-11-12$55.29$332.90831,500
2021-11-11$55.31$333.02989,200
2021-11-10$56.08$337.65947,800
2021-11-09$55.43$333.74841,100
2021-11-08$55.28$332.841,320,200
2021-11-05$56.42$339.701,869,400
2021-11-04$55.65$335.061,421,400
2021-11-03$56.43$339.76958,900
2021-11-02$57.08$343.671,089,200
2021-11-01$56.85$342.29982,500
2021-10-29$56.57$340.601,374,900
2021-10-28$56.84$339.80648,100
2021-10-27$56.51$337.83994,000
2021-10-26$56.81$339.621,497,600
2021-10-25$56.50$337.77680,100
2021-10-22$57.38$343.03741,300
2021-10-21$56.75$339.27789,900
2021-10-20$56.45$337.471,142,200
2021-10-19$55.67$332.811,184,400
2021-10-18$55.33$330.781,045,000
2021-10-15$55.77$333.41956,700
2021-10-14$56.14$335.62849,500
2021-10-13$55.46$331.551,125,200
2021-10-12$54.99$328.741,175,700
2021-10-11$54.66$326.771,479,500
2021-10-08$55.96$334.54892,000
2021-10-07$56.66$338.73980,200
2021-10-06$57.08$341.241,028,100
2021-10-05$56.41$337.231,309,900
2021-10-04$56.82$339.681,218,400
2021-10-01$55.78$333.471,128,700
2021-09-30$55.98$334.661,294,500
2021-09-29$56.75$339.271,180,700
2021-09-28$55.81$333.651,153,400
2021-09-27$56.20$335.981,179,900
2021-09-24$57.11$341.42799,000
2021-09-23$57.25$342.25630,900
2021-09-22$57.44$343.39700,700
2021-09-21$57.52$343.87669,400
2021-09-20$57.90$346.141,017,500
2021-09-17$57.83$345.722,231,000
2021-09-16$58.65$350.62820,000
2021-09-15$59.27$354.33893,700
2021-09-14$59.28$354.39631,900
2021-09-13$59.43$355.29825,000
2021-09-10$59.77$357.32958,100
2021-09-09$60.70$362.881,059,100
2021-09-08$61.08$365.151,250,400
2021-09-07$59.75$357.201,220,000
2021-09-03$61.47$367.48681,600
2021-09-02$62.05$370.95847,900
2021-09-01$61.64$368.50921,200
2021-08-31$60.79$363.42954,400
2021-08-30$60.89$364.01580,200
2021-08-27$60.84$363.72671,200
2021-08-26$60.59$362.22853,200
2021-08-25$60.56$362.04936,300
2021-08-24$60.66$362.641,000,300
2021-08-23$60.97$364.491,106,700
2021-08-20$62.18$371.731,180,900
2021-08-19$61.48$367.54936,800
2021-08-18$61.42$367.18924,900
2021-08-17$61.74$369.101,016,900
2021-08-16$61.64$368.501,090,000
2021-08-13$61.07$365.09831,900
2021-08-12$60.66$362.64856,100
2021-08-11$60.83$363.66832,200
2021-08-10$60.51$361.74711,400
2021-08-09$60.69$362.82746,800
2021-08-06$60.80$363.481,185,600
2021-08-05$60.47$361.501,210,100
2021-08-04$59.93$358.281,132,700
2021-08-03$59.98$358.571,482,000
2021-08-02$59.15$353.61928,400
2021-07-30$58.53$349.91932,500
2021-07-29$58.90$352.12731,200
2021-07-28$59.37$352.521,226,600
2021-07-27$59.73$354.661,028,600
2021-07-26$58.60$347.95770,000
2021-07-23$58.61$348.01762,200
2021-07-22$57.56$341.77994,500
2021-07-21$57.42$340.94992,100
2021-07-20$58.31$346.221,165,800
2021-07-19$58.05$344.681,473,800
2021-07-16$58.55$347.651,078,400
2021-07-15$57.81$343.26969,700
2021-07-14$57.23$339.81771,400
2021-07-13$56.53$335.66835,000
2021-07-12$56.94$338.09927,900
2021-07-09$56.76$337.022,105,200
2021-07-08$56.84$337.50766,100
2021-07-07$56.83$337.44812,300
2021-07-06$56.39$334.821,279,800
2021-07-02$56.42$335.00917,500
2021-07-01$56.27$334.111,116,900
2021-06-30$55.76$331.08958,400
2021-06-29$55.74$330.971,295,700
2021-06-28$57.11$339.10722,500
2021-06-25$57.13$339.22823,500
2021-06-24$56.42$335.001,008,500
2021-06-23$56.75$336.961,597,400
2021-06-22$57.23$339.811,146,100
2021-06-21$57.33$340.411,402,600
2021-06-18$56.33$334.472,171,500
2021-06-17$58.12$345.101,143,200
2021-06-16$57.57$341.831,293,900
2021-06-15$58.75$348.84753,000
2021-06-14$58.57$347.771,071,700
2021-06-11$58.58$347.83845,200
2021-06-10$58.54$347.59818,200
2021-06-09$58.30$346.17964,000
2021-06-08$57.59$341.951,915,600
2021-06-07$58.10$344.981,046,000
2021-06-04$58.11$345.04754,700
2021-06-03$58.13$345.161,450,000
2021-06-02$57.60$342.011,048,100
2021-06-01$56.99$338.391,072,800
2021-05-28$57.15$339.341,506,000
2021-05-27$56.75$336.967,705,900
2021-05-26$57.51$341.471,746,500
2021-05-25$57.60$342.011,501,900
2021-05-24$58.06$344.741,239,000
2021-05-21$58.11$345.041,866,300
2021-05-20$57.76$342.961,481,900
2021-05-19$57.70$342.601,823,700
2021-05-18$57.60$342.012,958,400
2021-05-17$56.48$335.361,339,600
2021-05-14$56.76$337.021,106,600
2021-05-13$56.88$337.73978,800
2021-05-12$55.81$331.381,237,800
2021-05-11$56.97$338.271,577,900
2021-05-10$57.95$344.091,640,700
2021-05-07$56.74$336.901,722,400
2021-05-06$56.57$335.891,355,200
2021-05-05$55.61$330.191,264,800
2021-05-04$56.54$335.721,167,100
2021-05-03$56.17$333.521,673,400
2021-04-30$56.17$333.521,653,100
2021-04-29$55.38$328.832,016,500
2021-04-28$55.30$325.961,309,100
2021-04-27$55.52$327.26985,300
2021-04-26$56.24$331.50769,000
2021-04-23$56.44$332.68983,800
2021-04-22$56.85$335.10938,700
2021-04-21$57.08$336.45930,000
2021-04-20$57.42$338.461,423,200
2021-04-19$56.19$331.211,590,900
2021-04-16$56.16$331.031,181,400
2021-04-15$55.68$328.201,113,400
2021-04-14$54.88$323.48964,000
2021-04-13$54.51$321.301,151,700
2021-04-12$54.21$319.531,267,600
2021-04-09$54.01$318.36987,700
2021-04-08$54.15$319.181,430,900
2021-04-07$54.39$320.601,276,800
2021-04-06$54.82$323.13993,400
2021-04-05$54.84$323.25823,700
2021-04-01$54.36$320.42894,100
2021-03-31$54.16$319.241,417,700
2021-03-30$54.16$319.241,067,800
2021-03-29$54.64$322.071,087,900
2021-03-26$53.97$318.121,297,700
2021-03-25$53.75$316.821,630,300
2021-03-24$53.32$314.292,130,400
2021-03-23$53.07$312.821,856,600
2021-03-22$51.51$303.621,697,700
2021-03-19$51.77$305.155,167,200
2021-03-18$51.78$305.211,964,800
2021-03-17$51.71$304.801,965,800
2021-03-16$52.70$310.631,852,500
2021-03-15$52.70$310.633,134,100
2021-03-12$51.12$301.322,502,600
2021-03-11$49.99$294.661,350,600
2021-03-10$50.39$297.021,785,400
2021-03-09$49.88$294.011,713,400
2021-03-08$49.71$293.011,678,600
2021-03-05$48.39$285.231,595,700
2021-03-04$47.20$278.221,286,300
2021-03-03$46.91$276.511,303,600
2021-03-02$47.11$277.681,092,400
2021-03-01$47.09$277.571,448,500
2021-02-26$46.16$272.081,700,800
2021-02-25$47.37$279.221,289,700
2021-02-24$47.53$280.161,495,500
2021-02-23$48.23$284.291,880,000
2021-02-22$47.13$277.801,337,800
2021-02-19$47.63$280.751,901,100
2021-02-18$48.61$286.531,045,700
2021-02-17$48.23$284.29999,100
2021-02-16$47.82$281.871,128,300
2021-02-12$48.29$284.641,269,100
2021-02-11$48.71$287.12912,800
2021-02-10$49.12$289.53800,400
2021-02-09$48.84$287.88834,500
2021-02-08$49.06$289.18875,700
2021-02-05$49.68$292.83778,500
2021-02-04$49.46$291.54924,800
2021-02-03$49.11$289.471,229,000
2021-02-02$49.02$288.941,065,800
2021-02-01$48.95$288.531,236,500
2021-01-29$48.65$286.761,800,400
2021-01-28$48.96$288.591,236,500
2021-01-27$48.98$286.331,452,400
2021-01-26$49.84$291.361,077,400
2021-01-25$50.50$295.222,205,300
2021-01-22$49.41$288.851,283,500
2021-01-21$49.75$290.83920,300
2021-01-20$49.92$291.831,867,000
2021-01-19$49.63$290.131,934,200
2021-01-15$49.47$289.201,652,400
2021-01-14$48.09$281.13936,400
2021-01-13$48.75$284.99951,500
2021-01-12$48.03$280.78920,700
2021-01-11$48.55$283.821,022,900
2021-01-08$49.35$288.491,183,500
2021-01-07$49.11$287.091,317,600
2021-01-06$51.00$298.14969,900
2021-01-05$50.25$293.76968,100
2021-01-04$50.49$295.16807,700