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 — 1979

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1979-12-31$4.44$4.4413,600
1979-12-28$4.34$4.347,200
1979-12-27$4.31$4.318,800
1979-12-26$4.34$4.3411,200
1979-12-24$4.31$4.316,400
1979-12-21$4.31$4.3112,800
1979-12-20$4.28$4.2820,000
1979-12-19$4.34$4.3425,600
1979-12-18$4.41$4.4113,600
1979-12-17$4.41$4.418,800
1979-12-14$4.44$4.4416,000
1979-12-13$4.44$4.4413,600
1979-12-12$4.50$4.5015,200
1979-12-11$4.47$4.4710,800
1979-12-10$4.59$4.599,200
1979-12-07$4.66$4.666,800
1979-12-06$4.59$4.5911,200
1979-12-05$4.66$4.666,000
1979-12-04$4.69$4.696,800
1979-12-03$4.66$4.667,200
1979-11-30$4.72$4.728,000
1979-11-29$4.72$4.7210,800
1979-11-28$4.66$4.666,000
1979-11-27$4.69$4.6925,600
1979-11-26$4.50$4.5012,400
1979-11-23$4.41$4.4124,400
1979-11-21$4.41$4.4111,600
1979-11-20$4.38$4.374,000
1979-11-19$4.44$4.4416,800
1979-11-16$4.47$4.475,200
1979-11-15$4.41$4.4110,000
1979-11-14$4.31$4.319,200
1979-11-13$4.31$4.3112,000
1979-11-12$4.38$4.374,400
1979-11-09$4.34$4.346,000
1979-11-08$4.22$4.227,200
1979-11-07$4.28$4.288,000
1979-11-06$4.25$4.2510,800
1979-11-05$4.31$4.317,200
1979-11-02$4.41$4.417,200
1979-11-01$4.44$4.444,000
1979-10-31$4.38$4.3716,400
1979-10-30$4.41$4.415,600
1979-10-29$4.41$4.4113,200
1979-10-26$4.44$4.444,400
1979-10-25$4.47$4.4726,800
1979-10-24$4.63$4.623,600
1979-10-23$4.53$4.537,200
1979-10-22$4.59$4.5914,000
1979-10-19$4.63$4.6210,400
1979-10-18$4.63$4.626,000
1979-10-17$4.59$4.5918,000
1979-10-16$4.53$4.5316,800
1979-10-15$4.53$4.539,600
1979-10-12$4.56$4.566,800
1979-10-11$4.53$4.5310,800
1979-10-10$4.59$4.5916,800
1979-10-09$4.59$4.5917,200
1979-10-08$4.69$4.698,400
1979-10-05$4.66$4.6613,200
1979-10-04$4.69$4.6912,400
1979-10-03$4.72$4.726,800
1979-10-02$4.72$4.728,800
1979-10-01$4.72$4.724,800
1979-09-28$4.63$4.628,000
1979-09-27$4.66$4.6616,800
1979-09-26$4.59$4.5917,600
1979-09-25$4.63$4.6217,600
1979-09-24$4.59$4.59135,200
1979-09-21$4.63$4.6216,000
1979-09-20$4.69$4.696,800
1979-09-19$4.63$4.629,600
1979-09-18$4.63$4.6217,600
1979-09-17$4.75$4.7512,800
1979-09-14$4.69$4.696,800
1979-09-13$4.72$4.728,400
1979-09-12$4.69$4.6910,400
1979-09-11$4.75$4.7516,400
1979-09-10$4.78$4.788,400
1979-09-07$4.78$4.786,800
1979-09-06$4.81$4.8115,200
1979-09-05$4.81$4.8111,600
1979-09-04$4.88$4.875,600
1979-08-31$4.84$4.849,600
1979-08-30$4.88$4.8710,800
1979-08-29$4.84$4.844,800
1979-08-28$4.88$4.8717,600
1979-08-27$4.88$4.874,000
1979-08-24$4.88$4.8714,800
1979-08-23$4.88$4.873,600
1979-08-22$4.88$4.875,200
1979-08-21$4.88$4.878,800
1979-08-20$4.84$4.846,800
1979-08-17$4.88$4.8746,400
1979-08-16$4.81$4.8111,600
1979-08-15$4.84$4.848,400
1979-08-14$4.81$4.8115,600
1979-08-13$4.81$4.8136,800
1979-08-10$4.88$4.8710,000
1979-08-09$4.91$4.9111,200
1979-08-08$4.78$4.7815,600
1979-08-07$4.88$4.874,800
1979-08-06$4.81$4.818,000
1979-08-03$4.88$4.879,600
1979-08-02$4.91$4.9110,800
1979-08-01$4.94$4.944,000
1979-07-31$4.84$4.8432,800
1979-07-30$4.88$4.8710,000
1979-07-27$4.94$4.943,600
1979-07-26$4.94$4.947,600
1979-07-25$4.91$4.9170,000
1979-07-24$5.09$5.094,400
1979-07-23$5.06$5.066,400
1979-07-20$5.06$5.0615,600
1979-07-19$5.09$5.0918,000
1979-07-18$5.13$5.127,200
1979-07-17$5.06$5.0618,000
1979-07-16$5.16$5.169,200
1979-07-13$5.06$5.064,800
1979-07-12$5.09$5.0911,600
1979-07-11$5.06$5.0614,800
1979-07-10$5.09$5.0917,600
1979-07-09$4.97$4.9717,200
1979-07-06$4.84$4.8417,600
1979-07-05$4.81$4.815,200
1979-07-03$4.81$4.8111,200
1979-07-02$4.81$4.8112,800
1979-06-29$4.84$4.849,600
1979-06-28$4.81$4.8121,600
1979-06-27$4.75$4.7510,000
1979-06-26$4.66$4.6614,800
1979-06-25$4.72$4.7217,600
1979-06-22$4.78$4.788,400
1979-06-21$4.75$4.758,800
1979-06-20$4.72$4.726,000
1979-06-19$4.66$4.664,800
1979-06-18$4.66$4.669,600
1979-06-15$4.69$4.698,000
1979-06-14$4.72$4.726,000
1979-06-13$4.75$4.7517,600
1979-06-12$4.75$4.758,000
1979-06-11$4.69$4.6912,800
1979-06-08$4.72$4.7215,200
1979-06-07$4.69$4.6915,200
1979-06-06$4.63$4.622,000
1979-06-05$4.59$4.596,400
1979-06-04$4.63$4.6216,000
1979-06-01$4.63$4.628,800
1979-05-31$4.66$4.662,800
1979-05-30$4.72$4.7240,800
1979-05-29$4.63$4.6219,600
1979-05-25$4.59$4.599,600
1979-05-24$4.56$4.567,200
1979-05-23$4.47$4.475,600
1979-05-22$4.53$4.5310,400
1979-05-21$4.47$4.474,400
1979-05-18$4.50$4.5010,800
1979-05-17$4.50$4.5011,600
1979-05-16$4.50$4.503,200
1979-05-15$4.50$4.506,000
1979-05-14$4.50$4.506,800
1979-05-11$4.53$4.536,800
1979-05-10$4.50$4.5010,800
1979-05-09$4.50$4.508,400
1979-05-08$4.50$4.5030,800
1979-05-07$4.53$4.5319,200
1979-05-04$4.53$4.5311,600
1979-05-03$4.59$4.5930,000
1979-05-02$4.59$4.596,400
1979-05-01$4.59$4.598,000
1979-04-30$4.56$4.568,800
1979-04-27$4.47$4.4726,400
1979-04-26$4.66$4.6633,200
1979-04-25$4.59$4.5913,600
1979-04-24$4.69$4.6918,000
1979-04-23$4.81$4.81122,400
1979-04-20$4.81$4.8114,000
1979-04-19$4.72$4.724,000
1979-04-18$4.69$4.6916,400
1979-04-17$4.72$4.726,800
1979-04-16$4.72$4.7210,000
1979-04-12$4.78$4.783,600
1979-04-11$4.84$4.844,000
1979-04-10$4.81$4.8111,200
1979-04-09$4.81$4.818,000
1979-04-06$4.81$4.8112,400
1979-04-05$4.78$4.7824,000
1979-04-04$4.78$4.788,000
1979-04-03$4.75$4.7512,000
1979-04-02$4.69$4.6918,800
1979-03-30$4.81$4.8124,800
1979-03-29$4.84$4.8420,400
1979-03-28$4.81$4.818,400
1979-03-27$4.81$4.8112,400
1979-03-26$4.81$4.816,400
1979-03-23$4.81$4.8116,000
1979-03-22$4.81$4.815,600
1979-03-21$4.81$4.813,600
1979-03-20$4.81$4.8112,400
1979-03-19$4.78$4.789,200
1979-03-16$4.75$4.7521,600
1979-03-15$4.78$4.785,600
1979-03-14$4.78$4.784,400
1979-03-13$4.78$4.784,000
1979-03-12$4.75$4.7510,000
1979-03-09$4.78$4.7829,600
1979-03-08$4.78$4.786,000
1979-03-07$4.84$4.8410,800
1979-03-06$4.81$4.8110,400
1979-03-05$4.78$4.788,800
1979-03-02$4.81$4.819,200
1979-03-01$4.88$4.8710,000
1979-02-28$4.84$4.8412,000
1979-02-27$4.88$4.879,200
1979-02-26$4.88$4.878,000
1979-02-23$4.78$4.789,600
1979-02-22$4.88$4.877,600
1979-02-21$4.81$4.8118,400
1979-02-20$4.84$4.849,600
1979-02-16$4.81$4.816,000
1979-02-15$4.88$4.8720,400
1979-02-14$4.78$4.784,400
1979-02-13$4.84$4.8410,400
1979-02-12$4.81$4.8120,000
1979-02-09$4.88$4.8714,400
1979-02-08$4.88$4.8710,000
1979-02-07$4.84$4.845,200
1979-02-06$4.91$4.9127,200
1979-02-05$4.88$4.876,800
1979-02-02$4.88$4.875,200
1979-02-01$4.84$4.848,000
1979-01-31$4.94$4.9485,600
1979-01-30$4.88$4.877,600
1979-01-29$4.81$4.8112,800
1979-01-26$4.78$4.787,600
1979-01-25$4.81$4.8119,200
1979-01-24$4.88$4.8723,600
1979-01-23$4.78$4.7840,800
1979-01-22$4.81$4.815,600
1979-01-19$4.78$4.7811,200
1979-01-18$4.81$4.8116,000
1979-01-17$4.75$4.7554,800
1979-01-16$4.84$4.846,000
1979-01-15$4.81$4.815,600
1979-01-12$4.84$4.8410,000
1979-01-11$4.78$4.7813,200
1979-01-10$4.78$4.788,400
1979-01-09$4.78$4.7820,000
1979-01-08$4.78$4.786,800
1979-01-05$4.78$4.7812,000
1979-01-04$4.75$4.7543,200
1979-01-03$4.84$4.844,800
1979-01-02$4.81$4.817,200