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 — 2026

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$67.4496,754
2026-09-03$67.99128,941
2026-09-02$67.98186,554
2026-09-01$68.12148,130
2026-08-31$67.65124,732
2026-08-28$68.5792,323
2026-08-27$68.21$480.011,508,200$68.3462,131
2026-08-26$68.92$485.011,706,800$68.5693,465
2026-08-25$68.34$480.931,381,100$68.52109,034
2026-08-24$68.42$481.491,823,200$68.08109,200
2026-08-21$67.86$477.551,956,200$69.8395,645
2026-08-20$69.46$488.811,765,400$70.00126,398
2026-08-19$70.15$493.671,936,100$70.2997,121
2026-08-18$69.98$492.472,018,100$71.11138,863
2026-08-17$70.35$495.072,058,000$70.21117,064
2026-08-14$70.60$496.831,610,200$70.14112,223
2026-08-13$70.20$494.023,255,600$70.46249,963
2026-08-12$70.24$494.305,651,600$69.03418,943
2026-08-11$68.58$482.622,915,600$68.07192,692
2026-08-10$68.21$480.012,749,800$69.14240,418
2026-08-07$69.37$488.182,152,100$69.36191,617
2026-08-06$69.52$489.232,000,300$71.09223,995
2026-08-05$70.20$494.022,560,600$70.54180,415
2026-08-04$70.66$497.263,365,000$71.01224,127
2026-08-03$71.27$501.553,303,500$70.75183,046
2026-07-31$70.78$498.103,240,100$70.71195,413
2026-07-30$70.89$495.113,165,400$72.13220,491
2026-07-29$72.00$502.863,418,900$74.12224,636
2026-07-28$73.79$515.362,099,000$74.60116,064
2026-07-27$73.93$516.342,139,700$75.00148,790
2026-07-24$74.94$523.391,957,500$74.3799,776
2026-07-23$74.42$519.761,784,600$73.53142,990
2026-07-22$74.02$516.972,126,600$73.79165,191
2026-07-21$73.11$510.613,618,300$73.93175,178
2026-07-20$73.96$516.552,193,000$75.12159,592
2026-07-17$74.82$522.562,019,700
2026-07-16$75.75$529.053,071,800
2026-07-15$74.55$520.673,171,500
2026-07-14$76.31$532.961,795,700
2026-07-13$76.63$535.202,279,300
2026-07-10$76.40$533.591,680,600
2026-07-09$75.70$528.701,371,800
2026-07-08$76.37$533.382,857,100
2026-07-07$77.65$542.321,994,100
2026-07-06$76.58$534.852,250,200
2026-07-02$78.03$544.982,563,200
2026-07-01$75.79$529.332,220,700
2026-06-30$76.29$532.822,388,700
2026-06-29$77.18$539.042,427,700
2026-06-26$77.25$539.532,920,500
2026-06-25$76.19$532.132,744,600
2026-06-24$75.59$527.932,496,400
2026-06-23$74.57$520.813,222,600
2026-06-22$73.21$511.312,712,000
2026-06-18$73.00$509.854,271,600
2026-06-17$72.82$508.593,351,500
2026-06-16$73.84$515.712,427,400
2026-06-15$73.55$513.691,551,700
2026-06-12$73.11$510.611,553,700
2026-06-11$72.62$507.192,283,700
2026-06-10$73.00$509.852,945,000
2026-06-09$72.37$505.452,687,400
2026-06-08$71.71$500.842,889,300
2026-06-05$72.87$508.942,776,100
2026-06-04$71.39$498.601,720,900
2026-06-03$70.79$494.413,063,300
2026-06-02$70.96$495.602,432,100
2026-06-01$69.57$485.892,198,200
2026-05-29$71.61$500.143,001,700
2026-05-28$72.17$504.052,260,100
2026-05-27$73.75$515.082,127,400
2026-05-26$73.68$514.591,439,900
2026-05-22$73.95$516.481,950,600
2026-05-21$73.28$511.802,988,900
2026-05-20$72.50$506.352,729,400
2026-05-19$73.00$509.852,832,300
2026-05-18$72.09$503.492,114,200
2026-05-15$70.90$495.182,627,000
2026-05-14$72.45$506.001,558,000
2026-05-13$72.30$504.962,590,400
2026-05-12$72.59$506.983,458,900
2026-05-11$72.47$506.141,671,700
2026-05-08$71.76$501.192,582,600
2026-05-07$71.69$500.702,914,700
2026-05-06$72.31$505.032,933,000
2026-05-05$73.07$510.333,416,800
2026-05-04$73.68$514.593,435,000
2026-05-01$74.06$517.254,344,300
2026-04-30$73.43$512.853,934,800
2026-04-29$72.00$499.121,775,700
2026-04-28$72.46$502.311,726,300
2026-04-27$72.42$502.041,412,500
2026-04-24$72.31$501.272,065,400
2026-04-23$72.63$503.492,097,000
2026-04-22$70.96$491.921,852,200
2026-04-21$71.14$493.161,904,900
2026-04-20$72.40$501.901,722,400
2026-04-17$72.83$504.881,784,600
2026-04-16$72.77$504.462,130,200
2026-04-15$72.18$500.372,083,000
2026-04-14$72.30$501.201,501,200
2026-04-13$72.51$502.661,822,700
2026-04-10$73.10$506.752,036,100
2026-04-09$73.72$511.051,730,800
2026-04-08$72.99$505.991,537,400
2026-04-07$72.65$503.631,537,900
2026-04-06$72.45$502.241,345,700
2026-04-02$72.85$505.021,668,400
2026-04-01$71.94$498.711,823,000
2026-03-31$71.76$497.462,376,500
2026-03-30$71.49$495.591,781,400
2026-03-27$70.52$488.862,057,300
2026-03-26$70.26$487.061,342,300
2026-03-25$69.77$483.671,333,900
2026-03-24$69.66$482.901,680,800
2026-03-23$69.17$479.513,150,500
2026-03-20$68.71$476.324,456,700
2026-03-19$71.32$494.411,962,400
2026-03-18$71.76$497.461,802,700
2026-03-17$72.63$503.491,368,500
2026-03-16$73.03$506.261,704,500
2026-03-13$72.79$504.601,680,200
2026-03-12$71.57$496.142,503,800
2026-03-11$70.81$490.882,271,200
2026-03-10$71.04$492.472,150,100
2026-03-09$71.61$496.422,144,200
2026-03-06$71.55$496.012,213,200
2026-03-05$71.34$494.552,672,100
2026-03-04$72.30$501.201,858,100
2026-03-03$72.23$500.722,795,900
2026-03-02$72.33$501.412,980,100
2026-02-27$72.34$501.485,649,800
2026-02-26$71.45$495.317,931,100
2026-02-25$71.26$493.993,107,100
2026-02-24$71.63$496.562,911,200
2026-02-23$71.91$498.503,943,200
2026-02-20$71.01$492.264,015,100
2026-02-19$70.01$485.333,342,400
2026-02-18$69.53$482.002,799,400
2026-02-17$71.10$492.892,725,600
2026-02-13$71.19$493.512,761,800
2026-02-12$69.68$483.043,093,300
2026-02-11$68.23$472.991,642,800
2026-02-10$68.01$471.462,497,600
2026-02-09$66.90$463.771,707,400
2026-02-06$66.69$462.314,807,300
2026-02-05$66.83$463.283,232,800
2026-02-04$66.75$462.733,706,500
2026-02-03$66.53$461.213,097,700
2026-02-02$65.11$451.362,975,700
2026-01-30$65.91$456.912,678,400
2026-01-29$66.33$456.114,587,000
2026-01-28$66.26$455.633,204,300
2026-01-27$67.19$462.021,859,700
2026-01-26$67.01$460.791,842,200
2026-01-23$66.83$459.552,395,400
2026-01-22$66.87$459.821,869,700
2026-01-21$67.44$463.742,837,800
2026-01-20$67.28$462.641,902,400
2026-01-16$67.34$463.052,083,800
2026-01-15$67.06$461.132,146,800
2026-01-14$66.86$459.751,962,300
2026-01-13$66.17$455.012,570,500
2026-01-12$65.17$448.131,783,900
2026-01-09$65.02$447.102,049,800
2026-01-08$65.55$450.752,534,000
2026-01-07$64.60$444.212,596,700
2026-01-06$65.38$449.581,595,200
2026-01-05$64.90$446.282,571,200
2026-01-02$65.59$451.021,354,400