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.

View year

Historical Stock Price — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$16.56$33.9780,200
1997-12-30$16.91$34.68187,800
1997-12-29$16.88$34.61177,400
1997-12-26$16.38$33.599,200
1997-12-24$16.53$33.9194,600
1997-12-23$16.56$33.97229,600
1997-12-22$16.03$32.88167,200
1997-12-19$15.78$32.37629,600
1997-12-18$15.50$31.79109,200
1997-12-17$15.50$31.79120,000
1997-12-16$15.53$31.8664,600
1997-12-15$15.56$31.92225,200
1997-12-12$15.22$31.2191,400
1997-12-11$15.19$31.1573,000
1997-12-10$15.47$31.73166,600
1997-12-09$15.50$31.79179,200
1997-12-08$15.44$31.6698,000
1997-12-05$15.31$31.4132,200
1997-12-04$15.13$31.0290,800
1997-12-03$15.22$31.2188,400
1997-12-02$15.22$31.2144,400
1997-12-01$15.44$31.66163,600
1997-11-28$15.25$31.2822,000
1997-11-26$15.06$30.8967,000
1997-11-25$15.16$31.0969,600
1997-11-24$14.75$30.2593,400
1997-11-21$14.84$30.45113,800
1997-11-20$14.97$30.7079,200
1997-11-19$14.72$30.1993,200
1997-11-18$14.66$30.0690,600
1997-11-17$14.91$30.57114,800
1997-11-14$14.78$30.32114,600
1997-11-13$14.50$29.7475,800
1997-11-12$14.56$29.8772,000
1997-11-11$14.63$30.0063,200
1997-11-10$14.53$29.80181,000
1997-11-07$14.31$29.3691,600
1997-11-06$14.31$29.3655,400
1997-11-05$14.69$30.1246,400
1997-11-04$14.53$29.8066,600
1997-11-03$14.91$30.57107,600
1997-10-31$14.59$29.9333,400
1997-10-30$14.50$29.7459,200
1997-10-29$14.50$29.7460,800
1997-10-28$14.72$29.68234,200
1997-10-27$14.56$29.3660,400
1997-10-24$15.06$30.37329,600
1997-10-23$14.59$29.42136,200
1997-10-22$14.81$29.8782,000
1997-10-21$14.84$29.9350,800
1997-10-20$14.97$30.1874,600
1997-10-17$14.72$29.68163,400
1997-10-16$14.84$29.93243,400
1997-10-15$15.06$30.3740,200
1997-10-14$14.81$29.8749,600
1997-10-13$14.75$29.7451,000
1997-10-10$14.63$29.4942,400
1997-10-09$14.63$29.4934,200
1997-10-08$14.53$29.30131,200
1997-10-07$14.66$29.5597,400
1997-10-06$14.94$30.1252,800
1997-10-03$14.66$29.55125,400
1997-10-02$14.88$29.9955,600
1997-10-01$14.81$29.87236,600
1997-09-30$14.31$28.86107,800
1997-09-29$14.50$29.2495,800
1997-09-26$14.38$28.9833,000
1997-09-25$14.28$28.79140,400
1997-09-24$14.41$29.0599,800
1997-09-23$14.31$28.8651,400
1997-09-22$14.19$28.61123,600
1997-09-19$14.22$28.67123,800
1997-09-18$14.25$28.73123,200
1997-09-17$14.44$29.1170,000
1997-09-16$14.41$29.0558,800
1997-09-15$14.25$28.7342,200
1997-09-12$14.47$29.1762,800
1997-09-11$14.03$28.2931,000
1997-09-10$14.00$28.2369,400
1997-09-09$14.31$28.8666,600
1997-09-08$14.09$28.4239,200
1997-09-05$14.00$28.23119,800
1997-09-04$14.00$28.23227,600
1997-09-03$14.00$28.23138,200
1997-09-02$13.94$28.10201,800
1997-08-29$13.84$27.9153,400
1997-08-28$13.75$27.72110,200
1997-08-27$13.94$28.1077,200
1997-08-26$13.78$27.7948,200
1997-08-25$13.75$27.72325,000
1997-08-22$13.72$27.6687,600
1997-08-21$13.69$27.6055,800
1997-08-20$13.91$28.0467,000
1997-08-19$13.91$28.0467,000
1997-08-18$13.78$27.7953,000
1997-08-15$13.56$27.3573,600
1997-08-14$13.69$27.6044,000
1997-08-13$13.81$27.8569,200
1997-08-12$13.88$27.98166,200
1997-08-11$13.91$28.0460,600
1997-08-08$13.75$27.72132,400
1997-08-07$13.97$28.16113,400
1997-08-06$13.81$27.8579,800
1997-08-05$13.78$27.7957,400
1997-08-04$13.72$27.6670,200
1997-08-01$13.81$27.85114,200
1997-07-31$13.81$27.85265,000
1997-07-30$14.09$27.91154,200
1997-07-29$13.84$27.42217,400
1997-07-28$13.81$27.36147,400
1997-07-25$13.78$27.29120,800
1997-07-24$13.91$27.5499,800
1997-07-23$13.81$27.3676,400
1997-07-22$13.72$27.17129,000
1997-07-21$14.00$27.73141,800
1997-07-18$13.91$27.54113,400
1997-07-17$14.09$27.91112,800
1997-07-16$14.19$28.10200,800
1997-07-15$14.06$27.85111,600
1997-07-14$13.91$27.54176,400
1997-07-11$13.94$27.6068,600
1997-07-10$13.94$27.6077,200
1997-07-09$13.97$27.66155,000
1997-07-08$13.94$27.6094,000
1997-07-07$14.03$27.79103,600
1997-07-03$14.00$27.7344,800
1997-07-02$13.94$27.6051,800
1997-07-01$13.94$27.6080,000
1997-06-30$13.97$27.6665,600
1997-06-27$13.88$27.4854,400
1997-06-26$13.84$27.4270,400
1997-06-25$13.88$27.48375,200
1997-06-24$13.94$27.6044,200
1997-06-23$13.88$27.4838,200
1997-06-20$13.94$27.60402,000
1997-06-19$14.00$27.73778,200
1997-06-18$13.94$27.60243,600
1997-06-17$13.88$27.4895,000
1997-06-16$14.00$27.7365,800
1997-06-13$14.00$27.7372,200
1997-06-12$13.88$27.4856,600
1997-06-11$13.81$27.36118,600
1997-06-10$13.69$27.11220,800
1997-06-09$13.81$27.3646,200
1997-06-06$13.88$27.4845,600
1997-06-05$13.94$27.6059,800
1997-06-04$13.94$27.6047,800
1997-06-03$13.81$27.3640,200
1997-06-02$13.88$27.4867,400
1997-05-30$13.81$27.3689,600
1997-05-29$13.56$26.8670,600
1997-05-28$13.75$27.2333,400
1997-05-27$13.69$27.1144,200
1997-05-23$13.75$27.2333,200
1997-05-22$13.69$27.1156,400
1997-05-21$13.69$27.1146,200
1997-05-20$13.81$27.3656,000
1997-05-19$13.75$27.2339,000
1997-05-16$13.69$27.1170,600
1997-05-15$13.69$27.1189,600
1997-05-14$13.81$27.36113,400
1997-05-13$13.81$27.36104,800
1997-05-12$13.88$27.4861,800
1997-05-09$13.88$27.48106,400
1997-05-08$13.88$27.4850,400
1997-05-07$13.81$27.3674,600
1997-05-06$13.88$27.48108,200
1997-05-05$13.88$27.4882,000
1997-05-02$13.63$26.98111,000
1997-05-01$13.50$26.74158,000
1997-04-30$13.56$26.86136,400
1997-04-29$13.50$26.74410,200
1997-04-28$13.38$26.49382,400
1997-04-25$13.63$26.49779,600
1997-04-24$13.69$26.6130,600
1997-04-23$13.69$26.6143,200
1997-04-22$13.75$26.7329,600
1997-04-21$13.69$26.6145,800
1997-04-18$13.75$26.7323,400
1997-04-17$13.69$26.6146,800
1997-04-16$13.69$26.6148,200
1997-04-15$13.75$26.7360,800
1997-04-14$13.69$26.61235,400
1997-04-11$13.69$26.6167,200
1997-04-10$13.88$26.9778,800
1997-04-09$13.75$26.7365,600
1997-04-08$13.69$26.6186,400
1997-04-07$13.69$26.6140,400
1997-04-04$13.63$26.4985,200
1997-04-03$13.69$26.6131,400
1997-04-02$13.63$26.4924,800
1997-04-01$13.69$26.6136,800
1997-03-31$13.69$26.6193,200
1997-03-27$13.75$26.73193,200
1997-03-26$13.88$26.9733,400
1997-03-25$14.00$27.2259,000
1997-03-24$13.81$26.85128,200
1997-03-21$13.88$26.9765,600
1997-03-20$13.88$26.9756,800
1997-03-19$14.00$27.2287,200
1997-03-18$14.00$27.2280,200
1997-03-17$14.06$27.3498,400
1997-03-14$13.88$26.97125,800
1997-03-13$13.81$26.85174,400
1997-03-12$14.06$27.34103,800
1997-03-11$14.13$27.46156,600
1997-03-10$13.88$26.97130,600
1997-03-07$14.00$27.2298,000
1997-03-06$13.94$27.1060,000
1997-03-05$14.00$27.22213,200
1997-03-04$13.94$27.10214,200
1997-03-03$13.88$26.97166,200
1997-02-28$13.88$26.97159,000
1997-02-27$13.81$26.8539,600
1997-02-26$13.94$27.10111,000
1997-02-25$13.94$27.10245,800
1997-02-24$14.00$27.2289,600
1997-02-21$14.00$27.22107,200
1997-02-20$13.94$27.10171,800
1997-02-19$14.19$27.5853,200
1997-02-18$14.44$28.07231,200
1997-02-14$14.25$27.7036,000
1997-02-13$14.19$27.5857,600
1997-02-12$14.19$27.5842,800
1997-02-11$14.06$27.3480,800
1997-02-10$14.19$27.58134,200
1997-02-07$14.13$27.4656,000
1997-02-06$14.13$27.46169,600
1997-02-05$14.13$27.46103,600
1997-02-04$14.06$27.3477,600
1997-02-03$14.00$27.2268,200
1997-01-31$14.06$27.3490,000
1997-01-30$14.06$27.34379,800
1997-01-29$14.00$27.22300,200
1997-01-28$14.25$27.22694,800
1997-01-27$14.25$27.2298,000
1997-01-24$14.25$27.2247,200
1997-01-23$14.25$27.2248,000
1997-01-22$14.38$27.4673,600
1997-01-21$14.25$27.22176,000
1997-01-20$14.25$27.2243,400
1997-01-17$14.31$27.3475,600
1997-01-16$14.38$27.46212,000
1997-01-15$14.06$26.86115,000
1997-01-14$14.00$26.7466,400
1997-01-13$13.88$26.5074,200
1997-01-10$14.00$26.7478,600
1997-01-09$14.13$26.9899,200
1997-01-08$14.06$26.8664,000
1997-01-07$14.06$26.8664,200
1997-01-06$14.13$26.9860,000
1997-01-03$14.06$26.86105,400
1997-01-02$14.00$26.7496,200