Alliant Energy - 15 Year Stock Price History | LNT
Historical daily share price chart and data for Alliant Energy since 2011 adjusted for splits and dividends. The latest closing stock price for Alliant Energy as of September 21, 2026 is 64.97.
- The all-time high Alliant Energy stock closing price was 77.44 on July 02, 2026.
- The Alliant Energy 52-week high stock price is 78.81, which is 21.3% above the current share price.
- The Alliant Energy 52-week low stock price is 63.87, which is 1.7% below the current share price.
- The average Alliant Energy stock price for the last 52 weeks is 69.81.
| Alliant Energy Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2026 | 70.2120 | 64.0902 | 77.4411 | 63.1228 | 64.9700 | 2.28% |
| 2025 | 61.2330 | 55.3606 | 67.8814 | 53.6101 | 63.5234 | 13.52% |
| 2024 | 50.5410 | 47.3398 | 60.2050 | 43.6781 | 55.9567 | 19.54% |
| 2023 | 46.8033 | 48.8218 | 49.9735 | 41.8032 | 46.8106 | -3.84% |
| 2022 | 50.7660 | 52.0639 | 56.1845 | 42.0204 | 48.6807 | -7.44% |
| 2021 | 47.1402 | 41.9454 | 52.8251 | 38.6659 | 52.5943 | 22.86% |
| 2020 | 42.9535 | 43.3276 | 48.9259 | 32.5170 | 42.8094 | -3.16% |
| 2019 | 39.3459 | 32.2704 | 44.3940 | 32.2704 | 44.2082 | 33.43% |
| 2018 | 32.4135 | 31.9867 | 36.2935 | 28.4525 | 33.1331 | 2.37% |
| 2017 | 30.7552 | 27.9201 | 34.3187 | 27.1546 | 32.3665 | 16.05% |
| 2016 | 26.7067 | 22.1746 | 29.6298 | 21.9218 | 27.8907 | 25.44% |
| 2015 | 21.4149 | 22.8621 | 24.3668 | 19.2454 | 22.2351 | -2.63% |
| 2014 | 19.5299 | 16.8455 | 23.8316 | 16.7493 | 22.8346 | 33.40% |
| 2013 | 16.3957 | 14.4292 | 17.7777 | 14.4100 | 17.1176 | 21.95% |
| 2012 | 13.8850 | 13.3618 | 14.9509 | 12.9718 | 14.0360 | 3.64% |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Utilities | Utility - Electric Power Distribution | $17.010B | $4.362B |
| Alliant Energy Corporation is a holding company with subsidiaries engaged in regulated electric and natural gas services. The company operates primarily through four wholly owned subsidiaries: Interstate Power and Light Company (IPL), Wisconsin Power and Light Company (WPL), Resource and Corporate Services. Alliant Energy provides services to electric and natural gas customers in the Midwest. Its Utility Business segment includes the operations of IPL and WPL. Both the utilities have a diversified fuel mix which consists of coal, natural gas and renewable resources. The output from these generating facilities is supplemented with purchased power. IPL is primarily engaged in the generation and distribution of electricity and distribution and transportation of natural gas in select markets in Iowa and southern Minnesota. | |||
| Stock Name | Country | Market Cap | PE Ratio |
|---|---|---|---|
| NextEra Energy (NEE) | United States | $167.859B | 20.58 |
| Iberdrola S.A (IBDRY) | Spain | $155.584B | 22.69 |
| Enel SpA (ENLAY) | Italy | $102.785B | 0.00 |
| Southern (SO) | United States | $98.379B | 18.59 |
| Duke Energy (DUK) | United States | $91.638B | 17.62 |
| ENGIE - (ENGIY) | France | $69.891B | 0.00 |
| American Electric Power (AEP) | United States | $65.328B | 20.03 |
| Dominion Energy (D) | United States | $55.920B | 18.27 |
| E.ON SE (EONGY) | Germany | $52.024B | 14.85 |
| RWE AG (RWEOY) | Germany | $50.492B | 18.69 |
| Entergy (ETR) | United States | $47.601B | 25.96 |
| Vistra (VST) | United States | $47.214B | 16.36 |
| Xcel Energy (XEL) | United States | $45.161B | 17.90 |
| Exelon (EXC) | United States | $43.427B | 15.08 |
| Consolidated Edison Inc (ED) | United States | $38.991B | 18.21 |
| Pacific Gas & Electric (PCG) | United States | $35.377B | 7.81 |
| Public Service Enterprise Group (PEG) | United States | $34.775B | 16.38 |
| WEC Energy (WEC) | United States | $33.618B | 18.39 |
| AXIA Energia (AXIAY) | Brazil | $29.473B | 0.00 |
| AXIA Energia (AXIA) | Brazil | $28.935B | 15.48 |
| Ameren (AEE) | United States | $28.302B | 19.07 |
| Fortis (FTS) | Canada | $27.789B | 21.47 |
| DTE Energy (DTE) | United States | $26.743B | 17.92 |
| FirstEnergy (FE) | United States | $26.189B | 17.54 |
| Eversource Energy (ES) | United States | $25.508B | 13.79 |
| CenterPoint Energy (CNP) | United States | $25.176B | 20.01 |
| CLP Holdings (CLPHY) | Hong Kong, SAR China | $25.113B | 0.00 |
| PPL (PPL) | United States | $25.090B | 18.02 |
| Hydro One (HRNNF) | Canada | $22.141B | 21.58 |
| NRG Energy (NRG) | United States | $21.871B | 15.36 |
| Terna Rete Elettrica Nazionale SpA (TEZNY) | Italy | $21.457B | 0.00 |
| Edison (EIX) | United States | $21.284B | 7.71 |
| CMS Energy (CMS) | United States | $20.489B | 19.33 |
| NiSource (NI) | United States | $19.461B | 21.14 |
| Evergy (EVRG) | United States | $18.395B | 19.85 |
| Power Assets Holdings (HGKGY) | Hong Kong, SAR China | $16.154B | 0.00 |
| Korea Electric Power (KEP) | South Korea | $14.136B | 2.57 |
| United Utilities Group (UUGRY) | United Kingdom | $13.682B | 0.00 |
| China Resources Power Holdings (CRPJY) | Hong Kong, SAR China | $12.318B | 0.00 |
| Pinnacle West Capital (PNW) | United States | $11.418B | 18.05 |
| AES (AES) | United States | $10.580B | 5.55 |
| OGE Energy (OGE) | United States | $9.402B | 20.05 |
| Companhia Paranaense De Energia - Copel (ELPC) | $9.281B | 23.09 | |
| Brookfield Renewable Partners (BEP) | Bermuda | $8.952B | 0.00 |
| IDACORP (IDA) | United States | $7.611B | 21.78 |
| ENGIE BRASL EGA (EGIEY) | Brazil | $6.888B | 12.99 |
| Comp En De Mn Cemig ADS (CIG) | Brazil | $6.124B | 0.00 |
| Enel Chile S.A (ENIC) | Chile | $5.796B | 9.98 |
| Portland General Electric (POR) | United States | $5.556B | 17.56 |
| Companhia Paranaense De Energia (COPEL) (ELP) | Brazil | $5.520B | 84.27 |
| Black Hills (BKH) | United States | $5.372B | 16.81 |
| Pampa Energia S.A (PAM) | Argentina | $4.383B | 7.74 |
| NorthWestern (NWE) | United States | $4.212B | 18.16 |
| Algonquin Power & Utilities (AQN) | Canada | $4.119B | 16.72 |
| Allete (ALE) | United States | $3.945B | 23.02 |
| TransAlta (TAC) | Canada | $3.862B | 101.83 |
| Otter Tail (OTTR) | United States | $3.670B | 13.49 |
| Kenon Holdings (KEN) | Singapore | $3.407B | 0.00 |
| Versigent (VGNT) | Switzerland | $3.249B | 0.00 |
| Avista (AVA) | United States | $3.036B | 13.78 |
| MGE Energy (MGEE) | United States | $2.799B | 18.20 |
| Centuri Holdings (CTRI) | United States | $1.954B | 38.70 |
| Hawaiian Electric Industries (HE) | United States | $1.693B | 13.24 |
| Empresa Distribuidora Y Comercializadora Norte S.A (Edenor) (EDN) | Argentina | $1.060B | 5.59 |
| Unitil (UTL) | United States | $0.947B | 15.59 |
| Ballard Power Systems (BLDP) | Canada | $0.762B | 0.00 |
| Genie Energy (GNE) | United States | $0.422B | 0.00 |
| Polar Power (POLA) | United States | $0.005B | 0.00 |
| Great Plains Energy Inc (GXP) | United States | $0.000B | 0.00 |
| Eletrobras (EBR.B) | Brazil | $0.000B | 0.00 |