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 — 2002

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2002-12-31$8.28$24.32673,600
2002-12-30$8.26$24.27903,800
2002-12-27$8.25$24.24700,800
2002-12-26$8.14$23.92702,200
2002-12-24$8.04$23.63445,600
2002-12-23$7.99$23.46962,600
2002-12-20$7.89$23.181,176,000
2002-12-19$7.68$22.55702,000
2002-12-18$7.78$22.851,348,600
2002-12-17$7.64$22.44572,600
2002-12-16$7.75$22.771,208,000
2002-12-13$7.68$22.55969,600
2002-12-12$7.51$22.07631,400
2002-12-11$7.54$22.16859,400
2002-12-10$7.51$22.07622,000
2002-12-09$7.54$22.14750,600
2002-12-06$7.57$22.241,042,600
2002-12-05$7.64$22.45872,800
2002-12-04$7.59$22.29825,200
2002-12-03$7.69$22.601,203,200
2002-12-02$7.83$23.01866,600
2002-11-29$8.14$23.92305,000
2002-11-27$8.24$24.20999,600
2002-11-26$8.27$24.291,094,200
2002-11-25$8.29$24.361,540,400
2002-11-22$7.81$22.953,031,600
2002-11-21$7.50$22.041,377,000
2002-11-20$7.21$21.19518,000
2002-11-19$7.25$21.29552,000
2002-11-18$7.24$21.26894,600
2002-11-15$7.20$21.141,595,600
2002-11-14$7.32$21.511,160,400
2002-11-13$7.34$21.551,164,400
2002-11-12$7.40$21.74848,800
2002-11-11$7.54$22.16996,400
2002-11-08$7.76$22.79841,000
2002-11-07$8.03$23.60650,400
2002-11-06$8.23$24.17825,800
2002-11-05$8.34$24.51546,600
2002-11-04$8.23$24.181,225,000
2002-11-01$7.99$23.48676,400
2002-10-31$8.01$23.54751,400
2002-10-30$8.25$24.24855,200
2002-10-29$8.19$24.051,393,200
2002-10-28$8.35$23.805,823,800
2002-10-25$8.21$23.402,560,000
2002-10-24$8.64$24.631,997,200
2002-10-23$8.93$25.441,518,800
2002-10-22$9.04$25.77866,000
2002-10-21$9.18$26.15967,200
2002-10-18$8.90$25.37608,600
2002-10-17$8.63$24.591,446,600
2002-10-16$8.59$24.47563,000
2002-10-15$8.89$25.34567,600
2002-10-14$8.85$25.23713,000
2002-10-11$8.95$25.50569,600
2002-10-10$8.80$25.07718,800
2002-10-09$8.26$23.551,224,000
2002-10-08$8.72$24.841,608,200
2002-10-07$9.00$25.65846,800
2002-10-04$9.24$26.341,054,000
2002-10-03$9.56$27.25337,400
2002-10-02$9.63$27.44423,000
2002-10-01$9.94$28.33513,800
2002-09-30$9.63$27.44594,800
2002-09-27$9.52$27.14431,400
2002-09-26$9.80$27.93399,000
2002-09-25$9.66$27.54415,200
2002-09-24$9.46$26.97501,200
2002-09-23$9.78$27.86448,400
2002-09-20$9.85$28.08679,000
2002-09-19$9.70$27.65724,400
2002-09-18$10.15$28.93488,000
2002-09-17$10.13$28.86379,400
2002-09-16$10.35$29.49369,600
2002-09-13$10.34$29.47290,800
2002-09-12$10.09$28.75416,200
2002-09-11$10.50$29.93347,800
2002-09-10$10.41$29.67879,800
2002-09-09$10.38$29.59617,000
2002-09-06$10.37$29.56441,800
2002-09-05$10.30$29.36494,600
2002-09-04$10.29$29.33458,400
2002-09-03$10.10$28.79687,200
2002-08-30$10.43$29.72607,200
2002-08-29$10.49$29.901,672,800
2002-08-28$10.13$28.88455,800
2002-08-27$10.22$29.13389,200
2002-08-26$10.38$29.57449,400
2002-08-23$10.10$28.78579,400
2002-08-22$10.37$29.56652,400
2002-08-21$9.94$28.32620,600
2002-08-20$9.63$27.45425,200
2002-08-19$9.56$27.25446,000
2002-08-16$9.52$27.12623,400
2002-08-15$9.56$27.25607,200
2002-08-14$9.50$27.08509,400
2002-08-13$9.35$26.65611,200
2002-08-12$9.56$27.24445,200
2002-08-09$9.43$26.87518,400
2002-08-08$9.45$26.94533,800
2002-08-07$9.48$27.02583,600
2002-08-06$9.21$26.25487,200
2002-08-05$9.13$26.01604,000
2002-08-02$9.14$26.05829,000
2002-08-01$9.24$26.34863,200
2002-07-31$9.57$27.27796,000
2002-07-30$9.45$26.941,919,200
2002-07-29$9.26$26.381,160,000
2002-07-26$9.33$25.886,021,200
2002-07-25$9.62$26.691,318,800
2002-07-24$9.08$25.181,154,800
2002-07-23$8.40$23.291,516,000
2002-07-22$9.16$25.402,113,400
2002-07-19$9.11$25.274,583,200
2002-07-18$11.89$32.98530,400
2002-07-17$12.12$33.62626,200
2002-07-16$12.08$33.50659,600
2002-07-15$12.38$34.33881,800
2002-07-12$11.95$33.14828,600
2002-07-11$12.04$33.39657,800
2002-07-10$11.86$32.89613,400
2002-07-09$12.16$33.72659,600
2002-07-08$12.38$34.33384,800
2002-07-05$12.39$34.36340,000
2002-07-03$12.44$34.51654,800
2002-07-02$12.67$35.13528,000
2002-07-01$12.74$35.34532,600
2002-06-28$12.85$35.65735,600
2002-06-27$12.56$34.84938,400
2002-06-26$12.63$35.02731,800
2002-06-25$12.66$35.12664,200
2002-06-24$12.75$35.36562,200
2002-06-21$12.99$36.02727,200
2002-06-20$12.97$35.97409,400
2002-06-19$12.95$35.92596,800
2002-06-18$12.96$35.94589,000
2002-06-17$12.80$35.51608,800
2002-06-14$12.46$34.551,264,800
2002-06-13$12.50$34.66991,600
2002-06-12$12.65$35.09416,200
2002-06-11$12.72$35.27454,400
2002-06-10$12.98$35.99427,800
2002-06-07$12.82$35.55419,800
2002-06-06$12.98$36.01514,200
2002-06-05$13.30$36.90380,600
2002-06-04$13.40$37.17421,200
2002-06-03$13.48$37.40536,000
2002-05-31$13.76$38.17302,000
2002-05-30$13.80$38.28336,600
2002-05-29$13.82$38.34419,600
2002-05-28$13.78$38.23355,200
2002-05-24$13.89$38.53365,000
2002-05-23$14.00$38.82759,400
2002-05-22$13.71$38.03621,200
2002-05-21$13.69$37.96455,200
2002-05-20$13.70$37.99375,800
2002-05-17$13.73$38.07358,000
2002-05-16$13.63$37.80447,600
2002-05-15$13.81$38.30448,200
2002-05-14$13.93$38.63545,400
2002-05-13$13.88$38.49528,600
2002-05-10$13.86$38.45355,200
2002-05-09$13.92$38.60464,000
2002-05-08$14.00$38.84398,000
2002-05-07$13.97$38.75343,600
2002-05-06$14.01$38.85294,600
2002-05-03$13.97$38.75440,800
2002-05-02$13.92$38.60516,400
2002-05-01$13.99$38.81567,200
2002-04-30$14.13$39.18599,600
2002-04-29$14.09$39.091,120,000
2002-04-26$14.04$38.93550,800
2002-04-25$14.43$39.34992,600
2002-04-24$14.59$39.76761,200
2002-04-23$14.74$40.18897,600
2002-04-22$14.75$40.211,138,800
2002-04-19$15.42$42.02547,800
2002-04-18$15.25$41.57619,800
2002-04-17$15.02$40.95820,800
2002-04-16$14.92$40.66466,000
2002-04-15$14.81$40.36557,600
2002-04-12$14.78$40.29679,000
2002-04-11$14.71$40.10699,800
2002-04-10$14.85$40.47735,800
2002-04-09$14.88$40.56275,800
2002-04-08$14.96$40.77377,600
2002-04-05$14.80$40.35437,600
2002-04-04$14.98$40.84236,000
2002-04-03$14.98$40.82239,400
2002-04-02$15.02$40.95303,000
2002-04-01$14.95$40.75408,600
2002-03-28$15.11$41.19320,200
2002-03-27$15.15$41.29272,200
2002-03-26$14.99$40.85274,200
2002-03-25$15.00$40.88383,600
2002-03-22$14.97$40.80400,000
2002-03-21$14.83$40.41445,200
2002-03-20$14.70$40.06185,400
2002-03-19$14.78$40.28314,200
2002-03-18$14.76$40.22383,800
2002-03-15$14.75$40.20471,800
2002-03-14$14.85$40.47224,400
2002-03-13$14.87$40.54344,600
2002-03-12$14.87$40.52217,000
2002-03-11$14.94$40.71372,000
2002-03-08$14.97$40.80333,200
2002-03-07$15.08$41.10320,800
2002-03-06$15.00$40.88406,800
2002-03-05$14.91$40.65440,800
2002-03-04$14.90$40.60342,200
2002-03-01$14.78$40.28386,800
2002-02-28$14.51$39.54304,600
2002-02-27$14.62$39.86374,200
2002-02-26$14.58$39.75355,400
2002-02-25$14.58$39.73562,400
2002-02-22$14.69$40.03294,800
2002-02-21$14.39$39.23357,400
2002-02-20$14.68$40.02369,200
2002-02-19$14.53$39.60289,600
2002-02-15$14.60$39.80218,400
2002-02-14$14.66$39.96262,400
2002-02-13$14.61$39.81484,600
2002-02-12$14.71$40.09327,800
2002-02-11$14.78$40.29179,000
2002-02-08$14.55$39.65321,000
2002-02-07$14.38$39.20496,800
2002-02-06$14.50$39.53456,800
2002-02-05$14.63$39.88573,800
2002-02-04$14.84$40.44299,000
2002-02-01$15.00$40.89371,600
2002-01-31$14.91$40.63841,200
2002-01-30$15.11$41.19593,000
2002-01-29$14.87$40.528,490,000
2002-01-28$15.09$40.45866,600
2002-01-25$15.20$40.75412,200
2002-01-24$15.30$41.00222,400
2002-01-23$15.38$41.22257,600
2002-01-22$15.43$41.37452,200
2002-01-18$15.40$41.29486,600
2002-01-17$15.35$41.15387,400
2002-01-16$15.30$41.00405,400
2002-01-15$15.30$41.02368,800
2002-01-14$15.23$40.83349,200
2002-01-11$15.19$40.71295,200
2002-01-10$15.18$40.68266,600
2002-01-09$15.17$40.66296,800
2002-01-08$15.17$40.66289,800
2002-01-07$15.35$41.15419,800
2002-01-04$15.18$40.68654,600
2002-01-03$15.24$40.86347,400
2002-01-02$15.32$41.06444,400