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 — 2012

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2012-12-31$21.96$98.76707,400——
2012-12-28$21.78$97.98475,800——
2012-12-27$21.95$98.72622,800——
2012-12-26$21.99$98.90517,800——
2012-12-24$22.22$99.93292,800——
2012-12-21$22.26$100.162,050,200——
2012-12-20$22.43$100.90706,400——
2012-12-19$22.36$100.59866,000——
2012-12-18$22.51$101.261,662,400——
2012-12-17$22.50$101.221,111,600——
2012-12-14$21.89$98.471,156,600——
2012-12-13$22.13$99.53606,400——
2012-12-12$22.21$99.91533,000——
2012-12-11$22.33$100.43560,000——
2012-12-10$22.32$100.38665,600——
2012-12-07$22.28$100.20556,400——
2012-12-06$22.29$100.25539,200——
2012-12-05$22.37$100.61848,200——
2012-12-04$22.17$99.71579,000——
2012-12-03$22.25$100.07560,600——
2012-11-30$22.41$100.811,175,800——
2012-11-29$22.21$99.89703,000——
2012-11-28$22.10$99.42490,400——
2012-11-27$22.02$99.06814,200——
2012-11-26$21.97$98.83914,000——
2012-11-23$21.86$98.34589,800——
2012-11-21$21.88$98.431,627,800——
2012-11-20$21.92$98.631,210,800——
2012-11-19$21.73$97.73789,400——
2012-11-16$21.73$97.751,366,000——
2012-11-15$21.19$95.321,207,600——
2012-11-14$21.38$96.181,669,400——
2012-11-13$21.73$97.751,398,000——
2012-11-12$21.79$98.021,130,800——
2012-11-09$21.85$98.291,662,400——
2012-11-08$21.39$96.201,052,800——
2012-11-07$21.40$96.24717,200——
2012-11-06$21.92$98.58668,000——
2012-11-05$21.75$97.84780,200——
2012-11-02$22.03$99.081,656,200——
2012-11-01$22.42$100.831,359,400——
2012-10-31$22.35$100.54966,400——
2012-10-26$22.25$99.06407,800——
2012-10-25$22.25$99.06471,400——
2012-10-24$22.17$98.70828,200——
2012-10-23$22.33$99.41929,200——
2012-10-22$22.46$100.01558,000——
2012-10-19$22.58$100.57839,000——
2012-10-18$22.65$100.86463,200——
2012-10-17$22.62$100.70971,600——
2012-10-16$22.30$99.30528,600——
2012-10-15$22.28$99.21812,000——
2012-10-12$22.06$98.21574,200——
2012-10-11$22.20$98.86578,800——
2012-10-10$22.08$98.34548,000——
2012-10-09$22.24$99.01913,200——
2012-10-08$22.21$98.88850,400——
2012-10-05$22.08$98.301,174,200——
2012-10-04$22.26$99.12832,000——
2012-10-03$22.08$98.341,516,400——
2012-10-02$21.75$96.83743,000——
2012-10-01$21.60$96.181,246,800——
2012-09-28$21.70$96.61962,000——
2012-09-27$21.62$96.271,063,200——
2012-09-26$21.92$97.63856,800——
2012-09-25$21.83$97.211,058,400——
2012-09-24$21.89$97.45993,000——
2012-09-21$21.58$96.121,786,400——
2012-09-20$21.79$97.03706,200——
2012-09-19$21.85$97.30642,000——
2012-09-18$21.84$97.27866,400——
2012-09-17$21.90$97.501,481,000——
2012-09-14$22.09$98.39690,800——
2012-09-13$22.32$99.39544,600——
2012-09-12$22.13$98.54462,000——
2012-09-11$22.32$99.39626,000——
2012-09-10$22.38$99.66632,200——
2012-09-07$22.40$99.75598,800——
2012-09-06$22.67$100.931,276,200——
2012-09-05$22.17$98.741,225,600——
2012-09-04$22.21$98.881,341,600——
2012-08-31$22.04$98.141,301,600——
2012-08-30$22.13$98.52596,200——
2012-08-29$22.21$98.88580,200——
2012-08-28$22.25$99.10634,600——
2012-08-27$22.34$99.48693,400——
2012-08-24$22.32$99.37675,600——
2012-08-23$22.31$99.35870,800——
2012-08-22$22.67$100.95537,600——
2012-08-21$22.80$101.53905,400——
2012-08-20$22.89$101.91524,200——
2012-08-17$23.00$102.40430,200——
2012-08-16$23.03$102.53644,200——
2012-08-15$23.14$103.021,167,800——
2012-08-14$23.09$102.821,153,200——
2012-08-13$22.97$102.26939,600——
2012-08-10$23.04$102.57574,600——
2012-08-09$22.98$102.31657,800——
2012-08-08$23.09$102.82949,800——
2012-08-07$23.13$102.971,239,200——
2012-08-06$23.39$104.15583,400——
2012-08-03$23.48$104.531,475,600——
2012-08-02$23.28$103.661,171,200——
2012-08-01$23.23$103.441,233,000——
2012-07-31$23.36$104.00988,600——
2012-07-30$23.63$105.20657,000——
2012-07-27$23.47$104.51958,600——
2012-07-26$23.49$103.60667,600——
2012-07-25$23.09$101.86851,200——
2012-07-24$23.22$102.411,029,000——
2012-07-23$23.48$103.53550,400——
2012-07-20$23.75$104.74741,800——
2012-07-19$23.62$104.15744,200——
2012-07-18$23.63$104.22949,400——
2012-07-17$23.43$103.331,001,000——
2012-07-16$23.31$102.78657,400——
2012-07-13$23.33$102.87986,000——
2012-07-12$22.88$100.89571,000——
2012-07-11$22.83$100.71670,600——
2012-07-10$22.70$100.11631,600——
2012-07-09$22.73$100.22532,800——
2012-07-06$22.78$100.47757,600——
2012-07-05$22.83$100.69563,200——
2012-07-03$22.97$101.28637,400——
2012-07-02$23.13$101.99846,800——
2012-06-29$22.79$100.49858,600——
2012-06-28$22.65$99.89843,600——
2012-06-27$22.46$99.06497,600——
2012-06-26$22.31$98.37494,400——
2012-06-25$22.31$98.39539,800——
2012-06-22$22.49$99.19928,000——
2012-06-21$22.32$98.44983,400——
2012-06-20$22.56$99.47902,000——
2012-06-19$22.73$100.25979,800——
2012-06-18$22.91$101.02766,400——
2012-06-15$22.75$100.331,263,200——
2012-06-14$22.56$99.471,029,800——
2012-06-13$22.56$99.47706,200——
2012-06-12$22.55$99.45719,400——
2012-06-11$22.46$99.03884,400——
2012-06-08$22.46$99.06590,000——
2012-06-07$22.34$98.551,173,000——
2012-06-06$22.22$98.001,702,400——
2012-06-05$21.94$96.761,193,800——
2012-06-04$21.74$95.861,035,200——
2012-06-01$21.71$95.731,644,000——
2012-05-31$21.84$96.341,967,000——
2012-05-30$21.81$96.17974,800——
2012-05-29$22.05$97.25681,200——
2012-05-25$22.02$97.12478,000——
2012-05-24$21.97$96.87711,600——
2012-05-23$21.83$96.281,504,000——
2012-05-22$22.07$97.311,110,000——
2012-05-21$21.82$96.21990,800——
2012-05-18$21.74$95.861,448,200——
2012-05-17$21.90$96.591,587,200——
2012-05-16$22.20$97.891,609,200——
2012-05-15$22.33$98.462,345,200——
2012-05-14$22.39$98.722,688,800——
2012-05-11$22.31$98.391,940,800——
2012-05-10$22.18$97.821,529,600——
2012-05-09$21.95$96.811,388,400——
2012-05-08$22.05$97.252,008,200——
2012-05-07$21.72$95.791,454,400——
2012-05-04$21.95$96.812,687,400——
2012-05-03$22.33$98.481,710,600——
2012-05-02$22.62$99.762,007,000——
2012-05-01$22.67$99.961,490,600——
2012-04-30$22.62$99.761,449,400——
2012-04-27$22.58$99.611,960,200——
2012-04-26$22.39$98.751,434,000——
2012-04-25$22.50$98.242,510,600——
2012-04-24$22.34$97.541,699,800——
2012-04-23$22.02$96.141,340,800——
2012-04-20$22.08$96.431,374,400——
2012-04-19$21.74$94.901,776,000——
2012-04-18$21.75$94.991,031,600——
2012-04-17$21.82$95.271,983,400——
2012-04-16$21.58$94.201,407,400——
2012-04-13$21.41$93.461,683,400——
2012-04-12$21.42$93.521,766,800——
2012-04-11$21.17$92.451,777,000——
2012-04-10$21.16$92.372,105,400——
2012-04-09$21.49$93.812,192,000——
2012-04-05$21.49$93.83993,800——
2012-04-04$21.67$94.59877,600——
2012-04-03$21.73$94.861,613,400——
2012-04-02$21.67$94.621,117,000——
2012-03-30$21.66$94.571,421,600——
2012-03-29$21.80$95.181,499,400——
2012-03-28$21.58$94.241,254,400——
2012-03-27$21.58$94.221,290,400——
2012-03-26$21.63$94.421,993,200——
2012-03-23$21.15$92.32927,200——
2012-03-22$21.19$92.52833,200——
2012-03-21$21.33$93.13876,800——
2012-03-20$21.41$93.46513,400——
2012-03-19$21.44$93.61660,800——
2012-03-16$21.50$93.871,101,600——
2012-03-15$21.47$93.741,123,600——
2012-03-14$21.40$93.441,162,200——
2012-03-13$21.84$95.361,125,800——
2012-03-12$21.81$95.21526,800——
2012-03-09$21.70$94.72579,600——
2012-03-08$21.55$94.091,052,000——
2012-03-07$21.48$93.761,320,600——
2012-03-06$21.31$93.021,205,400——
2012-03-05$21.25$92.80964,000——
2012-03-02$21.24$92.741,334,200——
2012-03-01$21.36$93.261,280,400——
2012-02-29$21.32$93.091,676,400——
2012-02-28$21.41$93.461,181,000——
2012-02-27$21.63$94.421,071,400——
2012-02-24$21.65$94.51658,600——
2012-02-23$21.57$94.18837,600——
2012-02-22$21.53$93.981,478,000——
2012-02-21$21.42$93.501,479,400——
2012-02-17$21.57$94.16458,000——
2012-02-16$21.55$94.091,216,400——
2012-02-15$21.38$93.352,504,400——
2012-02-14$21.37$93.28718,000——
2012-02-13$21.37$93.28900,400——
2012-02-10$21.54$94.051,427,000——
2012-02-09$21.68$94.66912,400——
2012-02-08$21.72$94.811,063,400——
2012-02-07$21.70$94.75963,800——
2012-02-06$21.53$94.001,097,600——
2012-02-03$21.49$93.81852,600——
2012-02-02$21.38$93.33716,000——
2012-02-01$21.41$93.48814,000——
2012-01-31$21.20$92.54908,200——
2012-01-30$21.05$91.91774,200——
2012-01-27$21.25$92.80803,200——
2012-01-26$21.61$93.371,214,000——
2012-01-25$21.52$92.981,024,800——
2012-01-24$21.13$91.281,286,400——
2012-01-23$21.38$92.361,122,000——
2012-01-20$21.54$93.071,219,400——
2012-01-19$21.31$92.051,086,400——
2012-01-18$21.62$93.391,411,200——
2012-01-17$21.56$93.131,771,800——
2012-01-13$21.43$92.622,665,400——
2012-01-12$21.46$92.721,086,600——
2012-01-11$21.58$93.261,139,000——
2012-01-10$21.71$93.801,887,200——
2012-01-09$21.67$93.65816,600——
2012-01-06$21.72$93.85881,200——
2012-01-05$21.83$94.322,704,600——
2012-01-04$21.62$93.391,762,200——
2012-01-03$21.76$94.021,627,400——