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 — 2008

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2008-12-31$14.59$54.441,219,200
2008-12-30$14.34$53.491,209,600
2008-12-29$14.08$52.521,313,800
2008-12-26$14.03$52.34886,400
2008-12-24$13.77$51.38378,800
2008-12-23$13.60$50.751,365,400
2008-12-22$13.86$51.721,548,000
2008-12-19$13.86$51.722,631,000
2008-12-18$13.95$52.063,892,600
2008-12-17$15.01$56.011,316,600
2008-12-16$15.32$57.171,351,600
2008-12-15$14.86$55.451,127,600
2008-12-12$15.20$56.721,318,600
2008-12-11$14.96$55.832,167,000
2008-12-10$15.18$56.631,860,000
2008-12-09$14.85$55.411,283,000
2008-12-08$14.97$55.841,645,800
2008-12-05$14.98$55.901,420,800
2008-12-04$14.34$53.491,576,800
2008-12-03$15.29$57.061,635,600
2008-12-02$14.65$54.652,708,000
2008-12-01$14.66$54.712,401,000
2008-11-28$15.94$59.46536,400
2008-11-26$15.50$57.841,275,400
2008-11-25$15.27$56.983,341,800
2008-11-24$15.96$59.542,770,800
2008-11-21$15.26$56.943,339,400
2008-11-20$13.71$51.142,892,800
2008-11-19$14.98$55.882,248,400
2008-11-18$15.56$58.052,930,600
2008-11-17$15.01$55.992,089,400
2008-11-14$14.59$54.431,411,400
2008-11-13$14.89$55.562,182,400
2008-11-12$13.96$52.071,241,800
2008-11-11$14.26$53.212,045,600
2008-11-10$14.56$54.331,643,600
2008-11-07$14.91$55.621,584,200
2008-11-06$14.28$53.291,677,200
2008-11-05$14.58$54.391,119,200
2008-11-04$14.82$55.301,038,600
2008-11-03$14.92$55.681,742,000
2008-10-31$14.69$54.822,542,800
2008-10-30$16.26$60.703,565,600
2008-10-29$14.76$55.061,930,400
2008-10-28$15.16$55.921,809,600
2008-10-27$13.90$51.271,293,800
2008-10-24$14.38$53.042,053,200
2008-10-23$14.56$53.693,247,200
2008-10-22$14.54$53.633,686,200
2008-10-21$15.01$55.352,498,400
2008-10-20$15.15$55.881,255,600
2008-10-17$13.95$51.442,430,400
2008-10-16$13.90$51.253,058,600
2008-10-15$13.32$49.132,699,600
2008-10-14$13.95$51.462,830,400
2008-10-13$13.97$51.531,992,600
2008-10-10$12.15$44.803,732,600
2008-10-09$13.19$48.633,118,000
2008-10-08$13.74$50.662,514,400
2008-10-07$14.28$52.652,080,600
2008-10-06$14.76$54.422,090,000
2008-10-03$15.54$57.321,818,600
2008-10-02$15.88$58.561,473,000
2008-10-01$16.23$59.871,418,600
2008-09-30$16.11$59.401,638,000
2008-09-29$16.00$59.022,434,400
2008-09-26$16.58$61.161,039,000
2008-09-25$16.63$61.341,462,800
2008-09-24$16.53$60.971,114,200
2008-09-23$16.63$61.34996,600
2008-09-22$16.87$62.231,078,400
2008-09-19$17.34$63.983,697,400
2008-09-18$16.40$60.473,585,600
2008-09-17$16.30$60.112,211,400
2008-09-16$16.66$61.432,384,800
2008-09-15$16.48$60.791,240,800
2008-09-12$16.95$62.521,214,000
2008-09-11$16.70$61.581,041,600
2008-09-10$16.80$61.97916,800
2008-09-09$16.83$62.061,373,800
2008-09-08$17.34$63.981,051,200
2008-09-05$17.00$62.691,725,400
2008-09-04$16.99$62.671,419,000
2008-09-03$17.05$62.891,171,400
2008-09-02$17.17$63.331,322,400
2008-08-29$17.48$64.46865,800
2008-08-28$17.75$65.47907,800
2008-08-27$17.57$64.81986,200
2008-08-26$17.39$64.141,196,400
2008-08-25$17.30$63.791,158,400
2008-08-22$17.43$64.31973,800
2008-08-21$17.29$63.76720,000
2008-08-20$17.22$63.521,118,600
2008-08-19$17.39$64.14859,600
2008-08-18$17.41$64.22883,800
2008-08-15$17.22$63.501,219,200
2008-08-14$17.00$62.711,281,600
2008-08-13$17.25$63.63787,200
2008-08-12$17.30$63.791,661,600
2008-08-11$17.65$65.081,320,800
2008-08-08$17.28$63.741,589,600
2008-08-07$16.97$62.581,716,600
2008-08-06$16.85$62.152,917,200
2008-08-05$15.97$58.911,751,600
2008-08-04$15.70$57.89912,200
2008-08-01$15.89$58.61984,000
2008-07-31$16.12$59.441,235,200
2008-07-30$16.24$59.901,001,600
2008-07-29$15.99$58.981,042,600
2008-07-28$16.12$58.80907,200
2008-07-25$15.96$58.231,059,200
2008-07-24$16.32$59.54804,600
2008-07-23$16.34$59.631,183,600
2008-07-22$16.55$60.361,600,000
2008-07-21$16.50$60.22811,000
2008-07-18$16.32$59.541,467,800
2008-07-17$16.33$59.601,061,200
2008-07-16$16.43$59.961,404,000
2008-07-15$16.80$61.281,389,600
2008-07-14$16.85$61.481,056,000
2008-07-11$17.06$62.231,214,000
2008-07-10$17.13$62.501,972,200
2008-07-09$17.19$62.721,822,400
2008-07-08$16.92$61.711,592,200
2008-07-07$16.69$60.891,154,400
2008-07-03$16.75$61.09528,800
2008-07-02$16.88$61.571,337,200
2008-07-01$17.04$62.172,137,600
2008-06-30$17.13$62.501,875,400
2008-06-27$16.88$61.572,741,200
2008-06-26$17.20$62.742,317,400
2008-06-25$17.45$63.671,578,600
2008-06-24$17.42$63.582,197,200
2008-06-23$17.90$65.291,282,400
2008-06-20$17.86$65.162,069,400
2008-06-19$18.23$66.491,347,400
2008-06-18$18.28$66.681,414,600
2008-06-17$18.53$67.611,769,800
2008-06-16$18.49$67.461,344,600
2008-06-13$18.58$67.771,765,400
2008-06-12$18.51$67.551,556,000
2008-06-11$18.61$67.881,825,000
2008-06-10$18.75$68.411,103,400
2008-06-09$18.68$68.15770,800
2008-06-06$18.49$67.441,056,600
2008-06-05$18.77$68.481,037,600
2008-06-04$18.51$67.55988,000
2008-06-03$18.48$67.411,743,400
2008-06-02$18.53$67.591,149,400
2008-05-30$18.77$68.481,233,400
2008-05-29$18.78$68.52939,400
2008-05-28$18.70$68.21725,400
2008-05-27$18.81$68.61562,600
2008-05-23$18.58$67.771,462,200
2008-05-22$18.87$68.85991,400
2008-05-21$18.76$68.45794,600
2008-05-20$18.77$68.48681,600
2008-05-19$18.84$68.74724,600
2008-05-16$18.73$68.32702,600
2008-05-15$18.75$68.431,045,400
2008-05-14$18.72$68.30596,600
2008-05-13$18.50$67.52582,200
2008-05-12$18.73$68.321,018,600
2008-05-09$18.39$67.10710,600
2008-05-08$18.49$67.461,028,600
2008-05-07$18.42$67.22920,800
2008-05-06$18.78$68.50945,400
2008-05-05$18.78$68.52896,800
2008-05-02$18.92$69.052,063,200
2008-05-01$19.08$69.631,265,000
2008-04-30$18.83$68.721,026,600
2008-04-29$18.75$68.39933,200
2008-04-28$18.68$68.171,039,000
2008-04-25$19.05$68.85625,000
2008-04-24$18.91$68.34832,400
2008-04-23$19.00$68.681,096,400
2008-04-22$18.61$67.27873,400
2008-04-21$18.94$68.47519,200
2008-04-18$19.01$68.72932,000
2008-04-17$18.99$68.65706,200
2008-04-16$19.08$68.961,094,200
2008-04-15$18.70$67.58837,800
2008-04-14$18.41$66.531,099,800
2008-04-11$18.22$65.861,101,200
2008-04-10$18.32$66.23938,600
2008-04-09$18.25$65.96696,600
2008-04-08$18.16$65.63658,200
2008-04-07$18.25$65.96665,600
2008-04-04$18.09$65.39675,400
2008-04-03$17.93$64.821,229,800
2008-04-02$18.12$65.49786,600
2008-04-01$17.77$64.241,187,000
2008-03-31$17.50$63.281,224,600
2008-03-28$17.34$62.68574,000
2008-03-27$17.53$63.35943,400
2008-03-26$17.54$63.41638,200
2008-03-25$17.53$63.35701,200
2008-03-24$17.39$62.85912,000
2008-03-20$17.37$62.791,558,000
2008-03-19$17.30$62.521,267,200
2008-03-18$17.55$63.44996,600
2008-03-17$17.30$62.521,222,400
2008-03-14$17.34$62.701,247,800
2008-03-13$17.55$63.441,038,800
2008-03-12$17.43$63.011,156,000
2008-03-11$17.52$63.331,021,000
2008-03-10$17.20$62.161,063,600
2008-03-07$17.24$62.30974,400
2008-03-06$17.29$62.501,335,600
2008-03-05$17.57$63.501,168,600
2008-03-04$17.64$63.771,513,200
2008-03-03$17.52$63.331,025,800
2008-02-29$17.37$62.791,258,800
2008-02-28$17.97$64.94827,200
2008-02-27$17.95$64.87865,600
2008-02-26$18.35$66.331,017,000
2008-02-25$18.07$65.301,075,400
2008-02-22$18.05$65.251,282,400
2008-02-21$17.80$64.331,392,600
2008-02-20$17.97$64.941,635,600
2008-02-19$17.99$65.022,174,800
2008-02-15$18.05$65.252,044,400
2008-02-14$18.03$65.181,988,200
2008-02-13$18.27$66.053,097,400
2008-02-12$18.62$67.311,342,600
2008-02-11$18.45$66.701,133,000
2008-02-08$18.45$66.701,091,000
2008-02-07$18.48$66.801,154,000
2008-02-06$18.56$67.091,432,200
2008-02-05$18.58$67.151,099,000
2008-02-04$19.00$68.67882,800
2008-02-01$18.69$67.561,264,800
2008-01-31$18.45$66.701,122,600
2008-01-30$18.18$65.721,233,600
2008-01-29$18.25$65.971,131,000
2008-01-28$18.27$65.411,157,600
2008-01-25$17.83$63.841,151,800
2008-01-24$18.24$65.311,449,400
2008-01-23$18.63$66.681,586,400
2008-01-22$17.99$64.411,967,400
2008-01-18$18.41$65.913,331,400
2008-01-17$19.03$68.132,809,600
2008-01-16$19.83$71.002,256,000
2008-01-15$20.22$72.392,004,400
2008-01-14$20.58$73.681,075,800
2008-01-11$20.80$74.47811,000
2008-01-10$21.06$75.402,551,000
2008-01-09$20.73$74.201,011,800
2008-01-08$20.35$72.861,406,600
2008-01-07$20.38$72.971,495,400
2008-01-04$19.98$71.54690,000
2008-01-03$20.02$71.68600,400
2008-01-02$20.14$72.09763,600