If you'd invested in Alliant Energy (LNT): performance and returns
Looking for Alliant Energy's share price history and how much the stock has returned? Here's its year-by-year performance and what $1,000 invested at different dates would be worth today.
💰 Calculator: how much would Alliant Energy have returned?
This calculator shows how much Alliant Energy stock would have returned based on the amount invested and the starting year. Pick a sum and a year and you'll instantly see what it would be worth today and the total gain. Real prices, excluding dividends.
If I'd invested $1,000 in Alliant Energy
| Investment | Worth today | Gain |
|---|---|---|
| 1 years ago | $1,296 | +30% |
| 3 years ago | $1,412 | +41% |
| 5 years ago | $1,568 | +57% |
| 10 years ago | $2,335 | +134% |
| since inception (1984) | $10,388 | +939% |
Return by year (Alliant Energy)
| Year | Return | $1,000 invested at year start |
|---|---|---|
| 2026 (YTD) | +16% | $1,157 (+16%) |
| 2025 | +12% | $1,296 (+30%) |
| 2024 | +21% | $1,568 (+57%) |
| 2023 | -10% | $1,412 (+41%) |
| 2022 | -10% | $1,274 (+27%) |
| 2021 | +23% | $1,568 (+57%) |
| 2020 | -18% | $1,285 (+29%) |
| 2019 | +33% | $1,716 (+72%) |
| 2018 | +12% | $1,919 (+92%) |
| 2017 | +6% | $2,026 (+103%) |
| 2016 | +15% | $2,335 (+134%) |
Frequently asked questions
How much does LNT return?
$1,000 invested in Alliant Energy 10 years ago would be worth $2,335 today, i.e. +9%/yr on average (price, excluding dividends).
What was LNT's best/worst year?
Best year: 2019 (+33%). Worst year: 2020 (-18%). Year-by-year detail is above.
How much would $1,000 invested in LNT since inception be worth?
Since 1984, $1,000 would have become $10,388 (+939%). Past performance is not a guarantee.
Do Alliant Energy's returns include dividends?
No — these returns are price-only. If Alliant Energy pays a dividend, its total return would be somewhat higher — see its dividend page.
What is Alliant Energy's average annual return (ROI)?
Alliant Energy's return on investment is about +9%/yr over 10 years (price, excluding dividends), versus the S&P 500's ~10%/yr over the long run.