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 — 1980

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1980-12-31$4.22$4.2212,400
1980-12-30$4.25$4.2527,200
1980-12-29$4.16$4.1623,600
1980-12-26$4.31$4.3110,800
1980-12-24$4.25$4.2515,200
1980-12-23$4.25$4.2527,200
1980-12-22$4.03$4.0322,800
1980-12-19$4.16$4.1642,400
1980-12-18$4.00$4.0049,600
1980-12-17$3.84$3.8466,800
1980-12-16$3.78$3.7824,800
1980-12-15$3.84$3.8431,200
1980-12-12$3.91$3.9120,000
1980-12-11$3.88$3.8712,800
1980-12-10$3.84$3.8425,600
1980-12-09$3.78$3.7818,400
1980-12-08$3.84$3.8421,600
1980-12-05$3.94$3.9422,000
1980-12-04$3.84$3.8422,800
1980-12-03$3.84$3.8422,000
1980-12-02$3.88$3.8715,600
1980-12-01$3.88$3.8716,800
1980-11-28$3.88$3.8727,200
1980-11-26$3.94$3.9417,600
1980-11-25$4.03$4.0313,200
1980-11-24$3.94$3.9420,000
1980-11-21$3.97$3.9711,200
1980-11-20$4.03$4.0321,200
1980-11-19$3.91$3.9125,200
1980-11-18$3.97$3.9768,000
1980-11-17$4.03$4.0339,600
1980-11-14$4.13$4.1221,600
1980-11-13$4.25$4.2520,800
1980-11-12$4.06$4.0618,000
1980-11-11$4.00$4.004,400
1980-11-10$4.00$4.009,200
1980-11-07$4.03$4.038,800
1980-11-06$4.13$4.128,000
1980-11-05$4.03$4.0323,600
1980-11-03$4.16$4.1650,800
1980-10-31$4.19$4.1911,200
1980-10-30$4.13$4.1217,200
1980-10-29$4.25$4.2520,800
1980-10-28$4.28$4.2815,200
1980-10-27$4.34$4.3443,600
1980-10-24$4.47$4.4740,400
1980-10-23$4.47$4.476,400
1980-10-22$4.44$4.445,600
1980-10-21$4.44$4.4412,000
1980-10-20$4.44$4.4411,200
1980-10-17$4.44$4.446,000
1980-10-16$4.47$4.4718,400
1980-10-15$4.59$4.598,800
1980-10-14$4.59$4.5927,200
1980-10-13$4.53$4.536,400
1980-10-10$4.50$4.5018,000
1980-10-09$4.50$4.5010,800
1980-10-08$4.47$4.478,000
1980-10-07$4.50$4.5010,000
1980-10-06$4.47$4.4710,400
1980-10-03$4.53$4.5310,000
1980-10-02$4.47$4.4721,600
1980-10-01$4.34$4.3413,200
1980-09-30$4.34$4.3416,000
1980-09-29$4.28$4.288,400
1980-09-26$4.38$4.3716,400
1980-09-25$4.31$4.3111,200
1980-09-24$4.41$4.4115,600
1980-09-23$4.44$4.4419,200
1980-09-22$4.38$4.3714,400
1980-09-19$4.34$4.3425,200
1980-09-18$4.28$4.2836,400
1980-09-17$4.25$4.2591,600
1980-09-16$4.31$4.314,800
1980-09-15$4.38$4.374,800
1980-09-12$4.38$4.3710,400
1980-09-11$4.41$4.418,400
1980-09-10$4.25$4.2516,800
1980-09-09$4.34$4.3418,400
1980-09-08$4.47$4.4710,800
1980-09-05$4.47$4.4716,400
1980-09-04$4.44$4.4415,200
1980-09-03$4.44$4.446,000
1980-09-02$4.31$4.3113,600
1980-08-29$4.19$4.1920,400
1980-08-28$4.19$4.1921,600
1980-08-27$4.28$4.288,400
1980-08-26$4.28$4.2811,200
1980-08-25$4.31$4.3146,800
1980-08-22$4.41$4.4118,000
1980-08-21$4.31$4.318,000
1980-08-20$4.31$4.3110,800
1980-08-19$4.31$4.31120,000
1980-08-18$4.53$4.5332,800
1980-08-15$4.53$4.538,400
1980-08-14$4.56$4.565,600
1980-08-13$4.53$4.539,600
1980-08-12$4.53$4.535,600
1980-08-11$4.53$4.5310,000
1980-08-08$4.59$4.5911,200
1980-08-07$4.53$4.5318,000
1980-08-06$4.50$4.5012,800
1980-08-05$4.47$4.4716,000
1980-08-04$4.44$4.4414,400
1980-08-01$4.50$4.5021,200
1980-07-31$4.41$4.4119,200
1980-07-30$4.44$4.4413,200
1980-07-29$4.47$4.4726,000
1980-07-28$4.56$4.5619,200
1980-07-25$4.59$4.5978,400
1980-07-24$4.78$4.78174,000
1980-07-23$4.78$4.787,200
1980-07-22$4.84$4.8412,400
1980-07-21$4.78$4.785,600
1980-07-18$4.78$4.788,400
1980-07-17$4.72$4.725,200
1980-07-16$4.69$4.6916,000
1980-07-15$4.81$4.816,800
1980-07-14$4.72$4.7224,000
1980-07-11$4.66$4.6632,000
1980-07-10$4.72$4.7216,000
1980-07-09$4.75$4.7513,600
1980-07-08$4.81$4.8128,000
1980-07-07$4.84$4.848,000
1980-07-03$4.75$4.7512,800
1980-07-02$4.78$4.788,000
1980-07-01$4.81$4.8112,000
1980-06-30$4.88$4.8720,000
1980-06-27$4.88$4.875,200
1980-06-26$4.94$4.9422,800
1980-06-25$4.91$4.9118,800
1980-06-24$4.88$4.8726,800
1980-06-23$4.81$4.8114,800
1980-06-20$4.78$4.7822,000
1980-06-19$4.69$4.6922,800
1980-06-18$4.66$4.6615,600
1980-06-17$4.66$4.6620,400
1980-06-16$4.66$4.6635,600
1980-06-13$4.63$4.625,200
1980-06-12$4.56$4.5620,000
1980-06-11$4.56$4.5622,000
1980-06-10$4.66$4.6619,600
1980-06-09$4.66$4.6618,800
1980-06-06$4.56$4.567,600
1980-06-05$4.59$4.5918,400
1980-06-04$4.53$4.5318,400
1980-06-03$4.53$4.539,600
1980-06-02$4.56$4.5610,800
1980-05-30$4.50$4.507,200
1980-05-29$4.56$4.5613,200
1980-05-28$4.53$4.5310,000
1980-05-27$4.56$4.5611,600
1980-05-23$4.50$4.5010,000
1980-05-22$4.50$4.505,600
1980-05-21$4.44$4.448,400
1980-05-20$4.41$4.414,400
1980-05-19$4.41$4.419,600
1980-05-16$4.50$4.5016,400
1980-05-15$4.47$4.4716,000
1980-05-14$4.47$4.4710,000
1980-05-13$4.47$4.4713,600
1980-05-12$4.47$4.477,600
1980-05-09$4.41$4.419,200
1980-05-08$4.47$4.4717,200
1980-05-07$4.47$4.4714,800
1980-05-06$4.41$4.4111,200
1980-05-05$4.38$4.3725,600
1980-05-02$4.31$4.313,600
1980-05-01$4.34$4.3417,600
1980-04-30$4.38$4.3714,800
1980-04-29$4.41$4.415,600
1980-04-28$4.50$4.503,600
1980-04-25$4.50$4.505,200
1980-04-24$4.34$4.349,600
1980-04-23$4.53$4.538,400
1980-04-22$4.56$4.566,400
1980-04-21$4.56$4.5612,800
1980-04-18$4.59$4.5928,000
1980-04-17$4.56$4.5613,600
1980-04-16$4.44$4.4413,600
1980-04-15$4.31$4.319,600
1980-04-14$4.25$4.2520,800
1980-04-11$4.06$4.0614,800
1980-04-10$4.03$4.0318,000
1980-04-09$4.00$4.009,200
1980-04-08$4.06$4.068,000
1980-04-07$3.94$3.947,600
1980-04-03$3.91$3.918,800
1980-04-02$4.03$4.033,600
1980-04-01$3.84$3.8410,800
1980-03-31$3.84$3.8416,400
1980-03-28$3.66$3.661,200
1980-03-27$3.72$3.729,200
1980-03-26$3.84$3.847,200
1980-03-25$3.72$3.724,800
1980-03-24$3.66$3.666,000
1980-03-21$3.72$3.7210,400
1980-03-20$3.81$3.817,200
1980-03-19$3.75$3.7536,800
1980-03-18$3.75$3.758,000
1980-03-17$3.72$3.7216,000
1980-03-14$3.81$3.814,400
1980-03-13$3.81$3.818,000
1980-03-12$3.88$3.8719,200
1980-03-11$3.75$3.7515,200
1980-03-10$3.69$3.6910,800
1980-03-07$3.66$3.6622,000
1980-03-06$3.72$3.7220,400
1980-03-05$3.81$3.8111,200
1980-03-04$3.81$3.8110,000
1980-03-03$3.84$3.8420,800
1980-02-29$3.69$3.6920,800
1980-02-28$3.63$3.62116,000
1980-02-27$3.56$3.5623,600
1980-02-26$3.69$3.6912,000
1980-02-25$3.69$3.6916,000
1980-02-22$3.72$3.7224,400
1980-02-21$3.69$3.6914,000
1980-02-20$3.72$3.7221,200
1980-02-19$3.88$3.8717,600
1980-02-15$3.91$3.9118,400
1980-02-14$3.97$3.9711,200
1980-02-13$3.97$3.9745,200
1980-02-12$4.00$4.0026,800
1980-02-11$4.09$4.0915,600
1980-02-08$4.03$4.039,200
1980-02-07$4.09$4.0915,200
1980-02-06$4.09$4.098,400
1980-02-05$4.09$4.0911,200
1980-02-04$4.03$4.0346,800
1980-02-01$4.00$4.0029,600
1980-01-31$4.00$4.0022,800
1980-01-30$4.00$4.0031,200
1980-01-29$4.09$4.0922,000
1980-01-28$4.06$4.0660,800
1980-01-25$4.19$4.1910,000
1980-01-24$4.25$4.2511,200
1980-01-23$4.25$4.2527,200
1980-01-22$4.38$4.379,200
1980-01-21$4.34$4.3413,600
1980-01-18$4.41$4.4110,400
1980-01-17$4.47$4.4712,400
1980-01-16$4.38$4.3713,200
1980-01-15$4.38$4.3714,400
1980-01-14$4.50$4.508,800
1980-01-11$4.50$4.505,600
1980-01-10$4.41$4.418,400
1980-01-09$4.44$4.4424,000
1980-01-08$4.53$4.533,200
1980-01-07$4.56$4.5610,000
1980-01-04$4.38$4.375,200
1980-01-03$4.38$4.3714,400
1980-01-02$4.28$4.2811,200