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 — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$65.01$447.031,132,900
2025-12-30$65.42$449.85854,500
2025-12-29$65.42$449.851,080,500
2025-12-26$65.24$448.611,004,300
2025-12-24$65.45$450.06718,700
2025-12-23$65.26$448.751,525,600
2025-12-22$65.03$447.172,132,200
2025-12-19$64.63$444.423,877,900
2025-12-18$65.69$451.711,611,100
2025-12-17$65.48$450.262,198,400
2025-12-16$65.26$448.751,456,700
2025-12-15$65.63$451.301,744,200
2025-12-12$65.33$449.231,530,000
2025-12-11$64.93$446.481,388,900
2025-12-10$64.81$445.663,338,600
2025-12-09$64.89$446.211,296,500
2025-12-08$64.78$445.451,920,900
2025-12-05$65.50$450.401,306,700
2025-12-04$65.71$451.852,795,400
2025-12-03$66.38$456.452,336,900
2025-12-02$66.53$457.491,868,400
2025-12-01$67.60$464.842,177,800
2025-11-28$69.47$477.70950,900
2025-11-26$69.18$475.711,578,700
2025-11-25$68.48$470.891,561,600
2025-11-24$68.41$470.412,005,000
2025-11-21$68.27$469.452,225,400
2025-11-20$67.47$463.952,624,900
2025-11-19$67.22$462.231,783,800
2025-11-18$68.09$468.211,999,300
2025-11-17$68.10$468.281,619,700
2025-11-14$67.33$462.991,451,600
2025-11-13$67.42$463.611,771,800
2025-11-12$68.14$468.561,895,800
2025-11-11$68.02$467.732,515,400
2025-11-10$66.96$460.441,879,100
2025-11-07$67.34$463.055,146,400
2025-11-06$66.74$458.932,143,200
2025-11-05$66.85$459.692,610,800
2025-11-04$66.59$457.903,326,300
2025-11-03$66.47$457.072,968,100
2025-10-31$66.82$459.482,113,800
2025-10-30$67.93$463.632,191,400
2025-10-29$67.79$462.672,768,800
2025-10-28$67.98$463.972,342,500
2025-10-27$68.86$469.971,673,500
2025-10-24$68.97$470.723,364,400
2025-10-23$68.60$468.203,381,700
2025-10-22$68.56$467.932,017,000
2025-10-21$68.22$465.611,766,400
2025-10-20$68.59$468.131,563,300
2025-10-17$68.07$464.582,052,600
2025-10-16$67.60$461.372,323,100
2025-10-15$68.63$468.401,707,000
2025-10-14$68.33$466.361,816,700
2025-10-13$67.66$461.781,449,300
2025-10-10$67.75$462.401,907,200
2025-10-09$67.24$458.921,481,100
2025-10-08$67.87$463.221,530,100
2025-10-07$68.07$464.581,898,100
2025-10-06$68.12$464.922,723,900
2025-10-03$66.80$455.911,782,100
2025-10-02$66.31$452.572,247,400
2025-10-01$67.11$458.031,248,900
2025-09-30$67.41$460.081,663,600
2025-09-29$66.78$455.781,997,300
2025-09-26$66.07$450.931,760,000
2025-09-25$65.20$444.992,234,000
2025-09-24$65.47$446.842,023,700
2025-09-23$64.84$442.541,510,300
2025-09-22$64.22$438.301,340,400
2025-09-19$64.17$437.962,539,600
2025-09-18$63.78$435.301,143,400
2025-09-17$63.86$435.851,944,700
2025-09-16$63.62$434.211,632,500
2025-09-15$64.73$441.79862,100
2025-09-12$64.86$442.671,127,300
2025-09-11$64.66$441.311,588,800
2025-09-10$63.99$436.741,612,700
2025-09-09$64.01$436.871,656,300
2025-09-08$64.05$437.141,911,800
2025-09-05$64.62$441.031,609,200
2025-09-04$64.72$441.722,086,400
2025-09-03$64.52$440.351,600,800
2025-09-02$64.66$441.311,701,400
2025-08-29$65.07$444.111,669,600
2025-08-28$65.02$443.761,626,500
2025-08-27$65.80$449.091,634,300
2025-08-26$65.71$448.471,836,500
2025-08-25$66.18$451.681,486,900
2025-08-22$66.97$457.072,248,200
2025-08-21$66.11$451.201,922,000
2025-08-20$66.33$452.712,294,800
2025-08-19$66.02$450.592,239,100
2025-08-18$64.43$439.743,168,100
2025-08-15$64.62$441.033,185,500
2025-08-14$64.72$441.722,288,700
2025-08-13$65.37$446.151,217,900
2025-08-12$64.80$442.262,316,200
2025-08-11$65.32$445.811,599,500
2025-08-08$65.64$448.001,923,900
2025-08-07$66.12$451.272,278,400
2025-08-06$65.77$448.881,541,700
2025-08-05$66.07$450.931,897,800
2025-08-04$66.34$452.772,338,200
2025-08-01$65.47$446.841,626,900
2025-07-31$65.01$443.702,357,800
2025-07-30$65.00$440.171,941,200
2025-07-29$64.50$436.781,406,500
2025-07-28$63.83$432.251,133,600
2025-07-25$64.94$439.761,417,900
2025-07-24$65.21$441.591,304,000
2025-07-23$64.85$439.152,407,400
2025-07-22$65.74$445.182,482,800
2025-07-21$64.56$437.191,740,800
2025-07-18$64.13$434.282,687,400
2025-07-17$63.22$428.111,569,200
2025-07-16$62.87$425.741,918,100
2025-07-15$61.85$418.841,458,500
2025-07-14$62.59$423.851,637,700
2025-07-11$62.08$420.391,233,000
2025-07-10$62.60$423.921,799,500
2025-07-09$61.72$417.961,788,100
2025-07-08$61.26$414.842,570,000
2025-07-07$61.95$419.512,394,000
2025-07-03$61.53$416.671,893,400
2025-07-02$60.76$411.461,607,600
2025-07-01$61.36$415.523,117,900
2025-06-30$60.47$409.492,615,700
2025-06-27$60.35$408.682,405,900
2025-06-26$60.32$408.481,297,400
2025-06-25$60.09$406.921,489,100
2025-06-24$61.16$414.161,435,800
2025-06-23$61.34$415.381,596,900
2025-06-20$60.54$409.972,577,700
2025-06-18$60.01$406.381,178,300
2025-06-17$60.09$406.921,812,200
2025-06-16$60.46$409.421,835,300
2025-06-13$61.08$413.621,694,200
2025-06-12$61.53$416.671,317,900
2025-06-11$61.13$413.961,627,100
2025-06-10$60.86$412.131,489,200
2025-06-09$60.48$409.561,785,800
2025-06-06$60.48$409.561,340,900
2025-06-05$60.32$408.481,793,500
2025-06-04$60.68$410.912,544,000
2025-06-03$61.94$419.452,024,800
2025-06-02$62.07$420.331,720,500
2025-05-30$62.23$421.412,276,500
2025-05-29$61.85$418.84928,300
2025-05-28$61.36$415.521,372,700
2025-05-27$62.25$421.551,649,000
2025-05-23$61.72$417.961,161,400
2025-05-22$61.21$414.502,477,600
2025-05-21$61.86$418.902,332,300
2025-05-20$63.16$427.712,548,800
2025-05-19$63.09$427.232,345,100
2025-05-16$62.48$423.102,876,600
2025-05-15$61.71$417.892,766,900
2025-05-14$60.47$409.492,641,100
2025-05-13$60.46$409.426,083,300
2025-05-12$59.52$403.064,755,700
2025-05-09$61.76$418.233,255,100
2025-05-08$61.11$413.832,670,700
2025-05-07$61.80$418.502,148,200
2025-05-06$61.11$413.831,974,800
2025-05-05$60.99$413.011,441,800
2025-05-02$61.17$414.231,319,000
2025-05-01$60.55$410.031,562,500
2025-04-30$61.04$413.352,296,600
2025-04-29$61.61$413.781,320,600
2025-04-28$60.90$409.011,749,700
2025-04-25$60.74$407.941,328,600
2025-04-24$61.33$411.901,513,600
2025-04-23$61.23$411.232,636,500
2025-04-22$61.03$409.882,164,000
2025-04-21$59.29$398.201,822,200
2025-04-17$60.80$408.342,462,900
2025-04-16$60.42$405.791,945,400
2025-04-15$61.60$413.711,651,600
2025-04-14$61.81$415.121,867,400
2025-04-11$60.59$406.931,527,900
2025-04-10$60.21$404.381,859,300
2025-04-09$60.42$405.792,672,300
2025-04-08$58.79$394.843,188,400
2025-04-07$59.81$401.693,748,800
2025-04-04$61.36$412.103,087,900
2025-04-03$64.85$435.541,924,000
2025-04-02$64.49$433.121,253,300
2025-04-01$64.42$432.651,420,100
2025-03-31$64.35$432.182,144,000
2025-03-28$63.58$427.012,369,800
2025-03-27$63.12$423.921,318,000
2025-03-26$62.86$422.172,151,000
2025-03-25$62.10$417.071,881,600
2025-03-24$62.98$422.981,393,400
2025-03-21$63.05$423.453,630,600
2025-03-20$63.55$426.811,780,800
2025-03-19$63.51$426.541,502,600
2025-03-18$63.35$425.462,028,200
2025-03-17$63.53$426.672,907,200
2025-03-14$62.95$422.781,888,800
2025-03-13$62.23$417.941,948,100
2025-03-12$62.18$417.611,416,700
2025-03-11$62.62$420.562,224,600
2025-03-10$63.27$424.933,181,200
2025-03-07$62.49$419.693,130,600
2025-03-06$62.20$417.742,851,300
2025-03-05$63.44$426.072,091,400
2025-03-04$64.26$431.582,405,000
2025-03-03$66.04$443.532,296,500
2025-02-28$64.53$433.391,921,800
2025-02-27$63.85$428.822,104,900
2025-02-26$63.98$429.701,941,000
2025-02-25$63.75$428.152,856,100
2025-02-24$63.85$428.823,475,000
2025-02-21$62.81$421.843,902,900
2025-02-20$61.62$413.853,247,000
2025-02-19$61.64$413.982,000,100
2025-02-18$61.67$414.182,466,200
2025-02-14$61.33$411.902,146,200
2025-02-13$61.10$410.352,070,900
2025-02-12$60.63$407.201,733,800
2025-02-11$60.31$405.051,523,700
2025-02-10$59.87$402.091,098,800
2025-02-07$59.47$399.411,107,600
2025-02-06$59.54$399.881,115,100
2025-02-05$59.73$401.151,359,600
2025-02-04$59.24$397.861,073,700
2025-02-03$59.27$398.061,862,700
2025-01-31$58.88$395.441,742,000
2025-01-30$59.34$395.131,047,300
2025-01-29$58.59$390.13971,100
2025-01-28$58.87$392.001,277,700
2025-01-27$60.00$399.522,493,800
2025-01-24$58.77$391.331,345,000
2025-01-23$58.69$390.801,429,700
2025-01-22$59.09$393.461,293,600
2025-01-21$61.00$406.181,552,600
2025-01-17$60.55$403.181,697,700
2025-01-16$60.07$399.991,233,800
2025-01-15$58.47$389.331,419,000
2025-01-14$57.79$384.811,565,100
2025-01-13$56.98$379.411,388,200
2025-01-10$56.66$377.281,381,000
2025-01-08$58.20$387.541,174,100
2025-01-07$57.36$381.941,260,800
2025-01-06$57.31$381.612,018,700
2025-01-03$58.34$388.471,440,700
2025-01-02$58.51$389.601,009,000