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 — 1984

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1984-12-31$7.44$7.4419,600
1984-12-28$7.44$7.4425,200
1984-12-27$7.38$7.37128,000
1984-12-26$7.38$7.3776,000
1984-12-24$7.31$7.3190,000
1984-12-21$7.25$7.2529,200
1984-12-20$7.19$7.1920,000
1984-12-19$7.22$7.2248,800
1984-12-18$7.25$7.25189,600
1984-12-17$7.34$7.3435,600
1984-12-14$7.25$7.2537,600
1984-12-13$7.22$7.22100,400
1984-12-12$7.13$7.12105,200
1984-12-11$7.16$7.1624,000
1984-12-10$7.13$7.1225,200
1984-12-07$7.09$7.0958,400
1984-12-06$7.13$7.12141,600
1984-12-05$7.19$7.1920,000
1984-12-04$7.19$7.1946,800
1984-12-03$7.09$7.0914,000
1984-11-30$7.13$7.1226,800
1984-11-29$7.13$7.1256,400
1984-11-28$7.09$7.0929,600
1984-11-27$7.09$7.0968,800
1984-11-26$7.06$7.0627,600
1984-11-23$7.13$7.1264,000
1984-11-21$7.06$7.068,400
1984-11-20$7.03$7.0364,800
1984-11-19$7.09$7.0978,800
1984-11-16$7.16$7.1673,200
1984-11-15$7.19$7.1936,000
1984-11-14$7.19$7.1920,000
1984-11-13$7.16$7.1632,000
1984-11-12$7.19$7.1933,600
1984-11-09$7.25$7.2539,200
1984-11-08$7.19$7.1988,000
1984-11-07$7.22$7.2219,200
1984-11-06$7.22$7.2237,200
1984-11-05$7.19$7.1960,800
1984-11-02$7.19$7.1920,800
1984-11-01$7.22$7.2231,200
1984-10-31$7.25$7.2512,000
1984-10-30$7.16$7.16406,400
1984-10-29$7.16$7.168,000
1984-10-26$7.16$7.1665,200
1984-10-25$7.31$7.3122,000
1984-10-24$7.53$7.5346,400
1984-10-23$7.56$7.5642,800
1984-10-22$7.59$7.5958,800
1984-10-19$7.63$7.6271,600
1984-10-18$7.63$7.62141,600
1984-10-17$7.53$7.53209,600
1984-10-16$7.69$7.6930,800
1984-10-15$7.66$7.6689,600
1984-10-12$7.53$7.5331,200
1984-10-11$7.47$7.4749,600
1984-10-10$7.47$7.47172,400
1984-10-09$7.38$7.3716,000
1984-10-08$7.28$7.2841,200
1984-10-05$7.34$7.346,000
1984-10-04$7.31$7.3112,000
1984-10-03$7.28$7.2830,800
1984-10-02$7.25$7.25124,400
1984-10-01$7.19$7.1955,600
1984-09-28$7.25$7.2510,800
1984-09-27$7.25$7.2550,000
1984-09-26$7.22$7.2266,800
1984-09-25$7.22$7.2224,000
1984-09-24$7.22$7.2221,200
1984-09-21$7.13$7.1261,600
1984-09-20$7.16$7.1621,200
1984-09-19$7.19$7.1956,400
1984-09-18$7.03$7.0355,600
1984-09-17$7.00$7.0038,800
1984-09-14$7.03$7.03149,600
1984-09-13$6.97$6.979,600
1984-09-12$7.00$7.009,200
1984-09-11$7.00$7.005,200
1984-09-10$7.03$7.0326,400
1984-09-07$6.97$6.9723,600
1984-09-06$6.94$6.9440,000
1984-09-05$6.97$6.9710,000
1984-09-04$6.94$6.9436,400
1984-08-31$6.97$6.978,000
1984-08-30$6.91$6.9150,800
1984-08-29$6.91$6.9122,000
1984-08-28$6.94$6.9431,600
1984-08-27$6.84$6.8413,600
1984-08-24$6.84$6.8456,800
1984-08-23$6.91$6.9141,200
1984-08-22$6.88$6.87217,600
1984-08-21$6.91$6.9178,400
1984-08-20$6.81$6.8120,400
1984-08-17$6.81$6.8148,000
1984-08-16$6.84$6.84187,600
1984-08-15$6.84$6.8425,200
1984-08-14$6.88$6.878,800
1984-08-13$6.91$6.9110,800
1984-08-10$6.88$6.8737,600
1984-08-09$6.91$6.9193,200
1984-08-08$6.88$6.8725,600
1984-08-07$6.91$6.91228,000
1984-08-06$6.88$6.8736,800
1984-08-03$6.91$6.91183,200
1984-08-02$6.72$6.7282,800
1984-08-01$6.69$6.6981,200
1984-07-31$6.66$6.6631,200
1984-07-30$6.56$6.5625,600
1984-07-27$6.50$6.5070,400
1984-07-26$6.75$6.7543,200
1984-07-25$6.72$6.7215,600
1984-07-24$6.94$6.94367,200
1984-07-23$7.09$7.0925,200
1984-07-20$7.09$7.0912,400
1984-07-19$7.16$7.1628,400
1984-07-18$7.03$7.03483,200
1984-07-17$6.91$6.9120,400
1984-07-16$6.88$6.871,089,600
1984-07-13$6.88$6.87422,000
1984-07-12$6.84$6.846,800
1984-07-11$6.88$6.8711,200
1984-07-10$6.88$6.879,200
1984-07-09$6.88$6.8718,400
1984-07-06$6.88$6.87211,200
1984-07-05$6.84$6.84828,000
1984-07-03$6.88$6.876,800
1984-07-02$6.75$6.759,200
1984-06-29$6.84$6.84215,600
1984-06-28$6.84$6.847,600
1984-06-27$6.88$6.879,200
1984-06-26$6.88$6.8712,800
1984-06-25$6.91$6.9113,600
1984-06-22$6.88$6.8714,800
1984-06-21$6.81$6.8110,800
1984-06-20$6.94$6.9414,000
1984-06-19$6.94$6.9481,200
1984-06-18$6.81$6.8142,400
1984-06-15$6.72$6.7210,000
1984-06-14$6.75$6.7517,600
1984-06-13$6.75$6.7515,200
1984-06-12$6.72$6.7214,000
1984-06-11$6.66$6.6629,200
1984-06-08$6.66$6.6624,400
1984-06-07$6.63$6.6216,800
1984-06-06$6.63$6.6214,400
1984-06-05$6.63$6.6241,200
1984-06-04$6.63$6.6230,800
1984-06-01$6.56$6.5644,400
1984-05-31$6.63$6.6236,000
1984-05-30$6.53$6.53121,600
1984-05-29$6.59$6.595,600
1984-05-25$6.59$6.5916,800
1984-05-24$6.59$6.5953,600
1984-05-23$6.63$6.6225,200
1984-05-22$6.59$6.5946,400
1984-05-21$6.56$6.5644,800
1984-05-18$6.53$6.5316,800
1984-05-17$6.53$6.5325,600
1984-05-16$6.56$6.5689,600
1984-05-15$6.50$6.50130,000
1984-05-14$6.56$6.5626,400
1984-05-11$6.59$6.5924,400
1984-05-10$6.63$6.6248,800
1984-05-09$6.63$6.6224,400
1984-05-08$6.63$6.6244,800
1984-05-07$6.56$6.56166,400
1984-05-04$6.47$6.47133,200
1984-05-03$6.56$6.568,800
1984-05-02$6.53$6.5320,800
1984-05-01$6.63$6.6212,000
1984-04-30$6.59$6.5926,400
1984-04-27$6.66$6.666,000
1984-04-26$6.66$6.6634,400
1984-04-25$6.53$6.5358,000
1984-04-24$6.66$6.6695,200
1984-04-23$6.94$6.9495,200
1984-04-19$6.97$6.977,600
1984-04-18$6.91$6.9110,000
1984-04-17$7.00$7.00414,000
1984-04-16$6.78$6.7814,000
1984-04-13$6.78$6.7853,600
1984-04-12$6.81$6.8133,600
1984-04-11$6.78$6.7821,200
1984-04-10$6.78$6.7852,000
1984-04-09$6.72$6.7229,600
1984-04-06$6.69$6.6975,600
1984-04-05$6.59$6.5921,600
1984-04-04$6.56$6.5616,000
1984-04-03$6.53$6.5321,200
1984-04-02$6.56$6.5637,600
1984-03-30$6.47$6.4712,000
1984-03-29$6.53$6.539,600
1984-03-28$6.53$6.539,200
1984-03-27$6.50$6.5061,200
1984-03-26$6.47$6.4750,400
1984-03-23$6.53$6.5313,200
1984-03-22$6.63$6.6218,000
1984-03-21$6.66$6.668,000
1984-03-20$6.69$6.6912,400
1984-03-19$6.78$6.7810,400
1984-03-16$6.81$6.8142,000
1984-03-15$6.81$6.8110,800
1984-03-14$6.88$6.8772,000
1984-03-13$6.91$6.9124,800
1984-03-12$6.88$6.8714,800
1984-03-09$6.91$6.9119,600
1984-03-08$6.91$6.9116,800
1984-03-07$6.81$6.8121,200
1984-03-06$6.81$6.8115,600
1984-03-05$6.97$6.9726,800
1984-03-02$6.94$6.9411,200
1984-03-01$6.84$6.8410,000
1984-02-29$6.88$6.8743,200
1984-02-28$6.72$6.7235,200
1984-02-27$6.75$6.7544,000
1984-02-24$6.75$6.7549,200
1984-02-23$6.63$6.6240,400
1984-02-22$6.69$6.6939,600
1984-02-21$6.63$6.6246,400
1984-02-17$6.56$6.569,200
1984-02-16$6.53$6.5325,600
1984-02-15$6.53$6.5330,800
1984-02-14$6.63$6.6237,600
1984-02-13$6.63$6.6219,600
1984-02-10$6.75$6.7530,800
1984-02-09$6.81$6.8112,000
1984-02-08$6.91$6.9120,400
1984-02-07$7.00$7.0012,800
1984-02-06$7.00$7.00178,000
1984-02-03$6.97$6.9722,000
1984-02-02$7.13$7.1227,200
1984-02-01$7.16$7.1613,600
1984-01-31$7.13$7.1236,800
1984-01-30$7.13$7.1226,000
1984-01-27$7.16$7.1673,200
1984-01-26$7.16$7.1694,800
1984-01-25$7.16$7.1611,600
1984-01-24$7.22$7.2222,400
1984-01-23$7.19$7.1949,200
1984-01-20$7.25$7.2529,200
1984-01-19$7.34$7.34164,800
1984-01-18$7.38$7.3752,000
1984-01-17$7.28$7.2837,600
1984-01-16$7.22$7.2229,200
1984-01-13$7.22$7.22654,000
1984-01-12$7.31$7.3122,400
1984-01-11$7.31$7.3125,600
1984-01-10$7.31$7.3134,400
1984-01-09$7.28$7.2873,200
1984-01-06$7.25$7.2535,600
1984-01-05$7.28$7.2851,200
1984-01-04$7.22$7.2240,000
1984-01-03$7.16$7.16119,200