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 — 1975

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1975-12-31$4.25$4.2522,800
1975-12-30$4.22$4.2246,400
1975-12-29$4.19$4.1917,600
1975-12-26$4.19$4.1916,800
1975-12-24$4.19$4.1914,000
1975-12-23$4.16$4.1620,000
1975-12-22$4.16$4.1614,400
1975-12-19$4.16$4.1627,200
1975-12-18$4.16$4.1626,400
1975-12-17$4.09$4.0938,800
1975-12-16$4.16$4.1627,600
1975-12-15$4.16$4.1676,800
1975-12-12$4.06$4.0631,200
1975-12-11$4.03$4.0322,000
1975-12-10$4.00$4.0063,600
1975-12-09$3.91$3.9148,000
1975-12-08$3.94$3.9424,400
1975-12-05$3.94$3.9439,600
1975-12-04$4.03$4.0332,000
1975-12-03$4.03$4.0332,400
1975-12-02$4.06$4.0662,000
1975-12-01$4.06$4.0612,000
1975-11-28$4.09$4.0918,400
1975-11-26$4.06$4.0619,600
1975-11-25$4.09$4.0927,200
1975-11-24$4.09$4.0932,000
1975-11-21$4.13$4.1224,400
1975-11-20$4.13$4.12102,400
1975-11-19$4.09$4.0988,000
1975-11-18$4.03$4.0360,000
1975-11-17$4.03$4.0356,800
1975-11-14$4.03$4.0341,200
1975-11-13$4.03$4.0332,400
1975-11-12$4.03$4.0370,000
1975-11-11$4.06$4.0672,400
1975-11-10$4.03$4.0383,200
1975-11-07$3.91$3.9178,800
1975-11-06$3.94$3.9465,200
1975-11-05$3.94$3.94200,400
1975-11-04$3.88$3.8731,200
1975-11-03$3.88$3.8790,400
1975-10-31$3.84$3.8425,600
1975-10-30$3.81$3.8158,800
1975-10-29$3.81$3.813,600
1975-10-28$3.81$3.816,000
1975-10-27$3.81$3.819,600
1975-10-24$3.91$3.917,600
1975-10-23$3.91$3.914,400
1975-10-22$3.88$3.874,800
1975-10-21$3.84$3.846,800
1975-10-20$3.84$3.8410,400
1975-10-17$3.84$3.845,200
1975-10-16$3.81$3.819,200
1975-10-15$3.91$3.9112,800
1975-10-14$3.91$3.915,200
1975-10-13$3.94$3.9410,000
1975-10-10$3.91$3.914,000
1975-10-09$3.91$3.9114,000
1975-10-08$3.84$3.8420,400
1975-10-07$3.72$3.7221,200
1975-10-06$3.69$3.6938,000
1975-10-03$3.69$3.695,200
1975-10-02$3.69$3.6924,800
1975-10-01$3.75$3.758,000
1975-09-30$3.75$3.7538,400
1975-09-29$3.91$3.9112,800
1975-09-26$3.91$3.9120,800
1975-09-25$3.91$3.9114,400
1975-09-24$3.91$3.9110,400
1975-09-23$3.88$3.876,800
1975-09-22$3.88$3.879,200
1975-09-19$3.84$3.8414,800
1975-09-18$3.84$3.844,800
1975-09-17$3.84$3.849,200
1975-09-16$3.84$3.848,800
1975-09-15$3.84$3.848,400
1975-09-12$3.84$3.849,200
1975-09-11$3.84$3.847,200
1975-09-10$3.88$3.872,000
1975-09-09$3.88$3.8713,200
1975-09-08$3.91$3.919,200
1975-09-05$3.91$3.918,000
1975-09-04$3.91$3.9114,400
1975-09-03$3.91$3.918,400
1975-09-02$3.94$3.9412,800
1975-08-29$3.94$3.942,800
1975-08-28$3.94$3.944,800
1975-08-27$3.94$3.944,000
1975-08-26$3.94$3.9415,200
1975-08-25$3.97$3.978,800
1975-08-22$3.97$3.979,600
1975-08-21$4.00$4.006,400
1975-08-20$4.00$4.008,000
1975-08-19$4.03$4.0318,400
1975-08-18$4.03$4.0310,400
1975-08-15$4.06$4.064,000
1975-08-14$4.09$4.0911,600
1975-08-13$4.16$4.1620,000
1975-08-12$4.19$4.196,000
1975-08-11$4.19$4.193,200
1975-08-08$4.22$4.225,600
1975-08-07$4.22$4.224,000
1975-08-06$4.25$4.258,800
1975-08-05$4.25$4.2512,400
1975-08-04$4.31$4.310
1975-08-01$4.31$4.319,200
1975-07-31$4.28$4.2813,200
1975-07-30$4.25$4.2510,800
1975-07-29$4.25$4.252,400
1975-07-28$4.25$4.253,200
1975-07-25$4.25$4.256,000
1975-07-24$4.28$4.286,000
1975-07-23$4.28$4.285,600
1975-07-22$4.28$4.288,400
1975-07-21$4.28$4.2814,000
1975-07-18$4.25$4.253,600
1975-07-17$4.25$4.2512,400
1975-07-16$4.25$4.2512,800
1975-07-15$4.25$4.2510,800
1975-07-14$4.22$4.229,200
1975-07-11$4.22$4.226,000
1975-07-10$4.22$4.2211,200
1975-07-09$4.25$4.2514,000
1975-07-08$4.28$4.2820,000
1975-07-07$4.28$4.288,400
1975-07-03$4.28$4.284,000
1975-07-02$4.28$4.2816,400
1975-07-01$4.38$4.3717,200
1975-06-30$4.38$4.379,200
1975-06-27$4.34$4.3411,600
1975-06-26$4.34$4.3419,200
1975-06-25$4.31$4.3117,600
1975-06-24$4.28$4.2843,200
1975-06-23$4.31$4.3126,000
1975-06-20$4.25$4.2586,000
1975-06-19$4.06$4.0618,400
1975-06-18$4.06$4.069,600
1975-06-17$4.06$4.0612,400
1975-06-16$4.06$4.0617,600
1975-06-13$4.06$4.069,200
1975-06-12$4.06$4.0613,200
1975-06-11$4.06$4.065,600
1975-06-10$4.06$4.064,000
1975-06-09$4.06$4.0639,200
1975-06-06$4.06$4.0610,000
1975-06-05$4.03$4.0329,600
1975-06-04$4.03$4.0313,200
1975-06-03$4.00$4.003,200
1975-06-02$4.00$4.009,200
1975-05-30$4.00$4.004,000
1975-05-29$4.00$4.003,200
1975-05-28$4.00$4.0014,800
1975-05-27$4.00$4.002,800
1975-05-23$4.00$4.0015,600
1975-05-22$3.97$3.973,600
1975-05-21$3.97$3.9732,400
1975-05-20$3.97$3.9727,200
1975-05-19$3.97$3.972,800
1975-05-16$3.97$3.9720,000
1975-05-15$3.94$3.9422,800
1975-05-14$3.88$3.8716,400
1975-05-13$3.88$3.877,600
1975-05-12$3.88$3.8722,800
1975-05-09$3.88$3.8710,000
1975-05-08$3.88$3.879,200
1975-05-07$3.88$3.879,200
1975-05-06$3.88$3.8714,000
1975-05-05$3.84$3.8414,800
1975-05-02$3.84$3.845,200
1975-05-01$3.84$3.845,600
1975-04-30$3.84$3.846,800
1975-04-29$3.84$3.8420,000
1975-04-28$3.88$3.876,000
1975-04-25$3.91$3.9115,200
1975-04-24$3.91$3.9112,800
1975-04-23$4.03$4.0313,200
1975-04-22$4.06$4.068,000
1975-04-21$4.06$4.067,200
1975-04-18$4.06$4.0618,800
1975-04-17$4.03$4.0314,800
1975-04-16$4.06$4.0614,400
1975-04-15$4.06$4.0648,400
1975-04-14$4.06$4.0616,400
1975-04-11$4.06$4.060
1975-04-10$4.06$4.069,600
1975-04-09$4.06$4.065,200
1975-04-08$4.06$4.062,000
1975-04-07$4.06$4.0612,000
1975-04-04$4.03$4.0312,400
1975-04-03$4.03$4.0316,000
1975-04-02$4.03$4.034,800
1975-04-01$4.03$4.037,200
1975-03-31$4.03$4.0312,400
1975-03-27$4.00$4.006,400
1975-03-26$4.00$4.006,800
1975-03-25$4.00$4.007,600
1975-03-24$4.03$4.0311,200
1975-03-21$4.06$4.0643,200
1975-03-20$4.03$4.037,600
1975-03-19$4.03$4.033,600
1975-03-18$4.03$4.0310,000
1975-03-17$4.03$4.035,200
1975-03-14$4.03$4.036,400
1975-03-13$4.03$4.036,800
1975-03-12$4.03$4.037,200
1975-03-11$4.03$4.034,800
1975-03-10$4.03$4.0310,400
1975-03-07$4.03$4.0311,600
1975-03-06$4.03$4.0342,000
1975-03-05$4.03$4.036,000
1975-03-04$4.03$4.038,800
1975-03-03$4.03$4.0315,600
1975-02-28$4.03$4.038,000
1975-02-27$4.03$4.0313,600
1975-02-26$4.03$4.0312,000
1975-02-25$4.06$4.0616,400
1975-02-24$4.09$4.095,200
1975-02-21$4.09$4.0916,000
1975-02-20$4.09$4.0932,800
1975-02-19$4.06$4.0611,200
1975-02-18$4.09$4.0938,400
1975-02-14$4.09$4.0920,000
1975-02-13$4.09$4.0927,600
1975-02-12$4.09$4.0911,200
1975-02-11$4.09$4.094,000
1975-02-10$4.09$4.097,600
1975-02-07$4.09$4.0918,800
1975-02-06$4.09$4.0925,600
1975-02-05$4.09$4.0924,400
1975-02-04$4.06$4.065,600
1975-02-03$4.09$4.0911,200
1975-01-31$4.09$4.097,600
1975-01-30$4.09$4.0940,000
1975-01-29$4.09$4.0926,000
1975-01-28$4.09$4.094,000
1975-01-27$4.06$4.064,400
1975-01-24$4.06$4.062,000
1975-01-23$4.06$4.0620,800
1975-01-22$4.03$4.036,000
1975-01-21$4.03$4.032,400
1975-01-20$4.03$4.0311,600
1975-01-17$4.09$4.098,800
1975-01-16$4.09$4.0924,400
1975-01-15$4.06$4.063,600
1975-01-14$4.06$4.068,800
1975-01-13$4.06$4.0612,000
1975-01-10$4.03$4.0323,600
1975-01-09$3.97$3.975,600
1975-01-08$3.94$3.9421,200
1975-01-07$3.84$3.8412,000
1975-01-06$3.81$3.8112,800
1975-01-03$3.75$3.7525,600
1975-01-02$3.53$3.5312,800