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 — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$18.39$76.07513,400
2010-12-30$18.43$76.26411,200
2010-12-29$18.42$76.24496,800
2010-12-28$18.51$76.59511,600
2010-12-27$18.48$76.44823,400
2010-12-23$18.54$76.69710,400
2010-12-22$18.62$77.04989,200
2010-12-21$18.38$76.051,528,800
2010-12-20$18.32$75.782,032,800
2010-12-17$18.42$76.242,232,800
2010-12-16$18.51$76.591,707,400
2010-12-15$18.25$75.511,323,200
2010-12-14$18.53$76.65943,200
2010-12-13$18.40$76.13760,200
2010-12-10$18.26$75.571,066,600
2010-12-09$18.20$75.31673,800
2010-12-08$18.23$75.41789,800
2010-12-07$18.39$76.091,165,400
2010-12-06$18.42$76.22773,200
2010-12-03$18.54$76.691,278,000
2010-12-02$18.50$76.551,324,800
2010-12-01$18.47$76.421,388,200
2010-11-30$18.16$75.121,556,400
2010-11-29$18.18$75.22786,400
2010-11-26$18.16$75.14317,600
2010-11-24$18.23$75.41936,200
2010-11-23$18.01$74.52707,600
2010-11-22$18.16$75.121,379,000
2010-11-19$18.15$75.081,013,000
2010-11-18$18.31$75.74622,200
2010-11-17$18.13$75.00888,600
2010-11-16$18.02$74.56915,600
2010-11-15$18.40$76.131,194,200
2010-11-12$18.22$75.371,047,800
2010-11-11$18.33$75.84906,000
2010-11-10$18.48$76.441,166,200
2010-11-09$18.56$76.77675,800
2010-11-08$18.61$77.00603,000
2010-11-05$18.82$77.85820,000
2010-11-04$18.76$77.62794,400
2010-11-03$18.50$76.571,010,200
2010-11-02$18.49$76.511,027,000
2010-11-01$18.22$75.39739,200
2010-10-29$18.26$75.571,560,200
2010-10-28$18.34$75.891,239,800
2010-10-27$18.15$75.101,055,600
2010-10-26$18.33$75.01776,200
2010-10-25$18.40$75.29847,600
2010-10-22$18.31$74.94551,600
2010-10-21$18.26$74.74580,600
2010-10-20$18.36$75.15676,200
2010-10-19$18.20$74.47921,800
2010-10-18$18.24$74.66885,200
2010-10-15$18.08$73.98994,400
2010-10-14$17.96$73.51834,800
2010-10-13$17.95$73.471,280,600
2010-10-12$17.90$73.271,668,000
2010-10-11$18.11$74.131,165,000
2010-10-08$18.07$73.96839,800
2010-10-07$18.08$74.021,588,000
2010-10-06$18.10$74.091,170,200
2010-10-05$18.30$74.901,063,200
2010-10-04$18.25$74.68988,800
2010-10-01$18.33$75.03716,000
2010-09-30$18.17$74.391,247,400
2010-09-29$18.13$74.191,130,000
2010-09-28$18.18$74.41875,800
2010-09-27$18.11$74.13757,400
2010-09-24$18.04$73.82829,600
2010-09-23$17.78$72.78738,400
2010-09-22$17.98$73.57592,000
2010-09-21$17.89$73.231,543,000
2010-09-20$18.03$73.781,007,600
2010-09-17$17.96$73.491,824,800
2010-09-16$18.00$73.701,279,200
2010-09-15$18.12$74.15680,800
2010-09-14$18.19$74.45916,400
2010-09-13$18.18$74.411,555,600
2010-09-10$17.95$73.45800,400
2010-09-09$18.07$73.941,151,400
2010-09-08$17.94$73.432,562,200
2010-09-07$17.88$73.161,202,000
2010-09-03$17.92$73.35713,000
2010-09-02$17.82$72.921,492,200
2010-09-01$17.97$73.531,120,200
2010-08-31$17.51$71.671,971,200
2010-08-30$17.42$71.32956,200
2010-08-27$17.72$72.53992,600
2010-08-26$17.47$71.491,419,400
2010-08-25$17.41$71.241,542,800
2010-08-24$17.54$71.791,929,800
2010-08-23$17.68$72.371,869,600
2010-08-20$17.79$72.821,620,200
2010-08-19$17.83$72.982,213,800
2010-08-18$17.98$73.591,072,400
2010-08-17$18.05$73.861,542,200
2010-08-16$17.74$72.591,064,000
2010-08-13$17.70$72.451,994,400
2010-08-12$17.38$71.141,072,400
2010-08-11$17.41$71.241,006,600
2010-08-10$17.81$72.881,711,800
2010-08-09$17.81$72.881,356,800
2010-08-06$17.61$72.061,730,400
2010-08-05$17.47$71.511,320,600
2010-08-04$17.53$71.731,555,600
2010-08-03$17.39$71.161,309,800
2010-08-02$17.40$71.224,589,000
2010-07-30$17.28$70.731,102,600
2010-07-29$17.55$71.83872,000
2010-07-28$17.71$72.47611,400
2010-07-27$18.02$72.951,227,600
2010-07-26$17.68$71.591,072,000
2010-07-23$17.48$70.76839,000
2010-07-22$17.29$69.971,323,600
2010-07-21$16.96$68.66869,800
2010-07-20$17.21$69.651,027,000
2010-07-19$16.95$68.621,235,600
2010-07-16$16.79$67.951,804,000
2010-07-15$17.36$70.261,183,400
2010-07-14$17.22$69.691,113,800
2010-07-13$17.18$69.551,118,200
2010-07-12$16.99$68.762,029,200
2010-07-09$16.76$67.871,527,600
2010-07-08$16.59$67.161,189,200
2010-07-07$16.45$66.591,531,200
2010-07-06$15.92$64.431,657,800
2010-07-02$15.74$63.701,199,600
2010-07-01$15.68$63.481,547,400
2010-06-30$15.87$64.251,327,600
2010-06-29$15.86$64.181,020,200
2010-06-28$16.25$65.80622,600
2010-06-25$16.08$65.101,912,600
2010-06-24$15.91$64.391,569,400
2010-06-23$15.91$64.411,176,600
2010-06-22$16.17$65.461,708,800
2010-06-21$16.57$67.061,738,200
2010-06-18$16.77$67.891,056,200
2010-06-17$16.93$68.561,035,600
2010-06-16$16.78$67.931,180,400
2010-06-15$16.55$66.981,626,600
2010-06-14$16.23$65.681,314,200
2010-06-11$16.20$65.561,432,600
2010-06-10$16.17$65.481,567,000
2010-06-09$15.85$64.141,208,200
2010-06-08$15.85$64.161,435,600
2010-06-07$15.78$63.881,301,400
2010-06-04$15.70$63.562,033,600
2010-06-03$16.36$66.211,749,400
2010-06-02$16.10$65.181,167,600
2010-06-01$15.78$63.862,386,600
2010-05-28$16.07$65.062,262,400
2010-05-27$16.03$64.891,670,200
2010-05-26$15.61$63.191,578,600
2010-05-25$15.57$63.033,035,200
2010-05-24$15.79$63.922,956,400
2010-05-21$15.90$64.354,623,600
2010-05-20$16.06$65.012,439,400
2010-05-19$16.77$67.891,575,200
2010-05-18$17.15$69.413,157,800
2010-05-17$17.26$69.872,713,000
2010-05-14$17.06$69.061,742,600
2010-05-13$17.12$69.312,820,000
2010-05-12$17.08$69.122,059,000
2010-05-11$16.85$68.212,135,800
2010-05-10$16.64$67.341,886,600
2010-05-07$15.89$64.313,250,800
2010-05-06$16.09$65.163,029,600
2010-05-05$16.75$67.811,788,600
2010-05-04$16.83$68.131,910,000
2010-05-03$17.26$69.891,569,800
2010-04-30$17.10$69.221,632,800
2010-04-29$17.07$69.102,077,800
2010-04-28$16.91$68.464,027,600
2010-04-27$17.10$68.432,494,400
2010-04-26$17.68$70.751,193,400
2010-04-23$17.82$71.291,265,800
2010-04-22$17.87$71.491,410,000
2010-04-21$17.67$70.711,548,800
2010-04-20$17.48$69.931,256,400
2010-04-19$17.24$68.99857,200
2010-04-16$17.25$69.012,421,600
2010-04-15$17.28$69.151,874,800
2010-04-14$17.15$68.631,793,000
2010-04-13$16.88$67.541,203,400
2010-04-12$16.89$67.56606,400
2010-04-09$16.81$67.241,109,000
2010-04-08$16.82$67.28872,600
2010-04-07$16.93$67.77877,600
2010-04-06$17.08$68.351,028,200
2010-04-05$16.97$67.891,043,200
2010-04-01$16.90$67.601,190,000
2010-03-31$16.63$66.541,866,800
2010-03-30$16.69$66.781,207,600
2010-03-29$16.73$66.921,221,400
2010-03-26$16.58$66.342,643,800
2010-03-25$16.59$66.401,204,800
2010-03-24$16.61$66.461,512,200
2010-03-23$16.73$66.942,358,200
2010-03-22$16.42$65.681,554,600
2010-03-19$16.35$65.423,366,400
2010-03-18$16.24$64.984,559,400
2010-03-17$16.90$67.60900,800
2010-03-16$16.75$67.002,727,200
2010-03-15$16.81$67.24961,000
2010-03-12$16.89$67.562,194,000
2010-03-11$16.76$67.081,072,400
2010-03-10$16.59$66.38924,600
2010-03-09$16.54$66.18992,800
2010-03-08$16.54$66.181,316,400
2010-03-05$16.42$65.72948,800
2010-03-04$16.25$65.041,084,600
2010-03-03$16.24$64.96900,400
2010-03-02$16.34$65.401,168,400
2010-03-01$16.11$64.441,084,400
2010-02-26$15.82$63.28905,000
2010-02-25$15.87$63.481,317,400
2010-02-24$16.01$64.06982,800
2010-02-23$16.04$64.181,144,600
2010-02-22$16.22$64.88839,200
2010-02-19$16.21$64.861,004,800
2010-02-18$15.96$63.84922,000
2010-02-17$15.80$63.221,070,200
2010-02-16$15.83$63.341,185,600
2010-02-12$15.49$61.962,468,800
2010-02-11$15.46$61.841,111,000
2010-02-10$15.32$61.281,008,800
2010-02-09$15.40$61.60816,600
2010-02-08$15.31$61.261,696,000
2010-02-05$15.35$61.422,423,200
2010-02-04$15.30$61.221,778,400
2010-02-03$15.72$62.901,962,800
2010-02-02$15.80$63.222,437,600
2010-02-01$15.66$62.641,603,800
2010-01-29$15.60$62.422,795,800
2010-01-28$15.63$62.521,860,400
2010-01-27$15.55$62.202,056,400
2010-01-26$15.87$62.713,661,000
2010-01-25$15.91$62.872,595,400
2010-01-22$15.98$63.152,004,800
2010-01-21$16.40$64.792,532,000
2010-01-20$16.47$65.081,662,200
2010-01-19$16.58$65.521,636,400
2010-01-15$16.36$64.631,978,200
2010-01-14$16.34$64.572,864,200
2010-01-13$16.16$63.861,657,400
2010-01-12$16.01$63.271,424,400
2010-01-11$16.00$63.251,471,200
2010-01-08$16.04$63.382,466,200
2010-01-07$15.74$62.181,404,400
2010-01-06$15.65$61.842,092,400
2010-01-05$15.53$61.373,684,600
2010-01-04$15.18$59.971,332,800