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 — 1978

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1978-12-29$4.75$4.757,200
1978-12-28$4.81$4.818,400
1978-12-27$4.81$4.814,400
1978-12-26$4.75$4.756,400
1978-12-22$4.75$4.757,600
1978-12-21$4.75$4.757,600
1978-12-20$4.81$4.814,400
1978-12-19$4.75$4.754,800
1978-12-18$4.78$4.7816,800
1978-12-15$4.81$4.814,800
1978-12-14$4.81$4.818,400
1978-12-13$4.88$4.878,000
1978-12-12$4.84$4.842,800
1978-12-11$4.88$4.875,600
1978-12-08$4.88$4.877,200
1978-12-07$4.81$4.8115,200
1978-12-06$4.84$4.846,800
1978-12-05$4.81$4.8110,400
1978-12-04$4.78$4.7811,600
1978-12-01$4.84$4.8423,600
1978-11-30$4.81$4.817,200
1978-11-29$5.00$5.007,200
1978-11-28$5.03$5.036,000
1978-11-27$5.03$5.036,800
1978-11-24$5.00$5.002,000
1978-11-22$4.94$4.949,600
1978-11-21$5.00$5.0046,800
1978-11-20$4.88$4.876,400
1978-11-17$4.78$4.789,600
1978-11-16$4.78$4.787,200
1978-11-15$4.81$4.815,600
1978-11-14$4.78$4.7841,600
1978-11-13$4.94$4.9414,400
1978-11-10$4.94$4.947,600
1978-11-09$4.94$4.9414,400
1978-11-08$4.94$4.946,800
1978-11-07$4.94$4.946,800
1978-11-06$5.03$5.035,200
1978-11-03$5.00$5.003,600
1978-11-02$4.91$4.9110,000
1978-11-01$4.97$4.976,000
1978-10-31$4.84$4.848,400
1978-10-30$4.75$4.7510,800
1978-10-27$4.81$4.816,400
1978-10-26$4.78$4.7834,400
1978-10-25$5.03$5.038,000
1978-10-24$5.22$5.223,600
1978-10-23$5.19$5.199,600
1978-10-20$5.19$5.195,200
1978-10-19$5.34$5.3411,200
1978-10-18$5.31$5.3113,600
1978-10-17$5.31$5.312,400
1978-10-16$5.31$5.313,600
1978-10-13$5.31$5.3120,800
1978-10-12$5.31$5.318,400
1978-10-11$5.34$5.341,200
1978-10-10$5.31$5.317,200
1978-10-09$5.31$5.313,200
1978-10-06$5.31$5.3110,000
1978-10-05$5.28$5.286,000
1978-10-04$5.31$5.314,000
1978-10-03$5.28$5.2813,600
1978-10-02$5.28$5.283,200
1978-09-29$5.28$5.283,600
1978-09-28$5.31$5.315,600
1978-09-27$5.28$5.2835,600
1978-09-26$5.28$5.2830,000
1978-09-25$5.31$5.316,800
1978-09-22$5.38$5.379,200
1978-09-21$5.34$5.3432,400
1978-09-20$5.38$5.376,000
1978-09-19$5.34$5.3419,200
1978-09-18$5.38$5.378,000
1978-09-15$5.34$5.348,000
1978-09-14$5.34$5.3413,600
1978-09-13$5.34$5.347,200
1978-09-12$5.31$5.3134,800
1978-09-11$5.38$5.375,600
1978-09-08$5.31$5.3116,400
1978-09-07$5.34$5.3414,400
1978-09-06$5.34$5.346,000
1978-09-05$5.31$5.317,200
1978-09-01$5.31$5.314,400
1978-08-31$5.31$5.3110,000
1978-08-30$5.38$5.376,000
1978-08-29$5.41$5.418,000
1978-08-28$5.41$5.417,600
1978-08-25$5.38$5.3726,000
1978-08-24$5.31$5.314,400
1978-08-23$5.28$5.288,800
1978-08-22$5.31$5.3124,000
1978-08-21$5.31$5.3112,400
1978-08-18$5.31$5.3111,600
1978-08-17$5.41$5.4110,800
1978-08-16$5.34$5.347,600
1978-08-15$5.28$5.283,200
1978-08-14$5.22$5.2210,800
1978-08-11$5.31$5.317,600
1978-08-10$5.25$5.2514,400
1978-08-09$5.25$5.256,000
1978-08-08$5.28$5.2810,800
1978-08-07$5.19$5.1923,200
1978-08-04$5.19$5.1912,800
1978-08-03$5.16$5.1680,800
1978-08-02$5.16$5.1614,400
1978-08-01$5.16$5.168,000
1978-07-31$5.19$5.19299,600
1978-07-28$5.16$5.1680,000
1978-07-27$5.19$5.198,800
1978-07-26$5.16$5.166,000
1978-07-25$5.22$5.2215,600
1978-07-24$5.44$5.447,600
1978-07-21$5.31$5.314,800
1978-07-20$5.38$5.379,200
1978-07-19$5.28$5.2851,200
1978-07-18$5.31$5.313,600
1978-07-17$5.28$5.284,000
1978-07-14$5.31$5.319,600
1978-07-13$5.38$5.37117,600
1978-07-12$5.34$5.34107,600
1978-07-11$5.31$5.318,400
1978-07-10$5.31$5.3110,800
1978-07-07$5.28$5.285,200
1978-07-06$5.25$5.257,200
1978-07-05$5.28$5.2811,600
1978-07-03$5.31$5.317,200
1978-06-30$5.25$5.2514,800
1978-06-29$5.38$5.3720,800
1978-06-28$5.25$5.2589,600
1978-06-27$5.19$5.1910,800
1978-06-26$5.19$5.199,600
1978-06-23$5.19$5.1912,400
1978-06-22$5.06$5.0614,000
1978-06-21$5.09$5.0911,200
1978-06-20$5.22$5.2225,200
1978-06-19$5.25$5.2514,000
1978-06-16$5.13$5.1210,800
1978-06-15$5.13$5.126,800
1978-06-14$5.09$5.095,600
1978-06-13$5.13$5.1251,600
1978-06-12$5.13$5.126,400
1978-06-09$5.13$5.1221,200
1978-06-08$5.19$5.1928,000
1978-06-07$5.09$5.0924,000
1978-06-06$5.00$5.0021,600
1978-06-05$4.94$4.9418,000
1978-06-02$4.94$4.9417,200
1978-06-01$4.91$4.9114,800
1978-05-31$4.81$4.8110,800
1978-05-30$4.72$4.7228,000
1978-05-26$4.69$4.6920,000
1978-05-25$4.63$4.6211,600
1978-05-24$4.78$4.7818,800
1978-05-23$4.75$4.7514,400
1978-05-22$4.66$4.6619,600
1978-05-19$4.69$4.6913,200
1978-05-18$4.75$4.7510,000
1978-05-17$4.72$4.7257,600
1978-05-16$4.78$4.7811,200
1978-05-15$4.84$4.846,400
1978-05-12$4.94$4.9412,800
1978-05-11$4.88$4.873,600
1978-05-10$4.84$4.8449,600
1978-05-09$4.88$4.8714,400
1978-05-08$4.81$4.8119,600
1978-05-05$4.78$4.7816,000
1978-05-04$4.81$4.818,000
1978-05-03$4.91$4.9115,600
1978-05-02$4.88$4.8716,800
1978-05-01$4.91$4.917,600
1978-04-28$4.91$4.916,800
1978-04-27$5.00$5.0016,800
1978-04-26$4.94$4.9422,800
1978-04-25$4.94$4.9415,600
1978-04-24$4.97$4.9716,400
1978-04-21$5.13$5.1210,000
1978-04-20$5.13$5.1216,400
1978-04-19$5.03$5.034,400
1978-04-18$5.06$5.069,600
1978-04-17$5.13$5.1218,800
1978-04-14$5.13$5.128,000
1978-04-13$5.09$5.0913,600
1978-04-12$5.06$5.064,800
1978-04-11$5.09$5.094,400
1978-04-10$5.06$5.0613,200
1978-04-07$5.06$5.066,800
1978-04-06$5.03$5.034,400
1978-04-05$5.06$5.0617,600
1978-04-04$5.09$5.0914,000
1978-04-03$5.13$5.124,800
1978-03-31$5.16$5.167,600
1978-03-30$5.06$5.0618,400
1978-03-29$5.16$5.165,200
1978-03-28$5.13$5.1210,000
1978-03-27$5.06$5.0615,200
1978-03-23$5.19$5.1912,400
1978-03-22$5.16$5.168,400
1978-03-21$5.13$5.128,000
1978-03-20$5.06$5.069,200
1978-03-17$5.03$5.0312,800
1978-03-16$5.06$5.068,000
1978-03-15$5.03$5.036,000
1978-03-14$5.06$5.064,800
1978-03-13$5.09$5.0914,000
1978-03-10$5.03$5.038,400
1978-03-09$5.06$5.065,600
1978-03-08$5.00$5.007,600
1978-03-07$5.00$5.008,800
1978-03-06$5.09$5.099,600
1978-03-03$5.06$5.063,200
1978-03-02$5.09$5.098,000
1978-03-01$5.09$5.0911,200
1978-02-28$5.06$5.0612,800
1978-02-27$5.13$5.1212,000
1978-02-24$5.19$5.1916,000
1978-02-23$5.22$5.228,400
1978-02-22$5.19$5.1959,200
1978-02-21$5.13$5.123,200
1978-02-17$5.16$5.166,400
1978-02-16$5.09$5.0918,400
1978-02-15$5.09$5.0914,400
1978-02-14$5.13$5.128,800
1978-02-13$5.06$5.0610,400
1978-02-10$5.13$5.124,400
1978-02-09$5.03$5.034,800
1978-02-08$5.09$5.0911,200
1978-02-07$5.03$5.037,200
1978-02-06$5.06$5.064,400
1978-02-03$5.00$5.0018,000
1978-02-02$5.06$5.0627,200
1978-02-01$5.00$5.008,800
1978-01-31$5.03$5.0312,000
1978-01-30$5.03$5.036,400
1978-01-27$4.97$4.974,800
1978-01-26$4.91$4.917,600
1978-01-25$4.97$4.9711,600
1978-01-24$5.13$5.1221,600
1978-01-23$5.16$5.167,600
1978-01-20$5.09$5.097,600
1978-01-19$4.97$4.978,000
1978-01-18$4.97$4.9734,000
1978-01-17$5.03$5.0310,400
1978-01-16$5.13$5.1213,200
1978-01-13$5.19$5.1912,400
1978-01-12$5.13$5.1227,600
1978-01-11$5.16$5.1612,000
1978-01-10$5.19$5.1930,400
1978-01-09$5.25$5.2511,200
1978-01-06$5.28$5.28126,400
1978-01-05$5.22$5.226,000
1978-01-04$5.28$5.285,600
1978-01-03$5.25$5.256,000