LNT / STOCK · DATA AS OF 2026-10-29
If you invested $1,000
in Alliant Energy
If you invested $1,000 in Alliant Energy 10 years ago (2016-10), it would be worth $2,523.75 as of 2026-10-29, with dividends reinvested.
Alliant Energy: the long view
| $1,000 invested | Actual start | Value today | CAGR |
|---|---|---|---|
| 1 years ago | 2025-10 | $1,082.52 | 8.25% |
| 3 years ago | 2023-10 | $1,587.54 | 16.66% |
| 5 years ago | 2021-10 | $1,460.34 | 7.87% |
| 10 years ago | 2016-10 | $2,523.75 | 9.70% |
| 15 years ago | 2011-10 | $5,645.81 | 12.23% |
| 20 years ago | 2006-10 | $7,481.77 | 10.59% |
| First month covered here | 1985-01 | $67,730.54 | 10.62% |
Dividends reinvested. Requested periods use the latest available month as their endpoint; shorter histories start at the first available month.
A little, every month
Investing $100 at each monthly close after the starting month (2016-10), with no initial lump sum, would turn $12,000.00 contributed into $19,383.50. Contributions start the following month.
Against the benchmark
Over 2016-10 to 2026-10, $1,000 in Alliant Energy became $2,523.75; $1,000 in SPY became $4,238.51 with dividends reinvested.
Your questions, answered
What would $1,000 invested in Alliant Energy 10 years ago be worth?
If you invested $1,000 in Alliant Energy 10 years ago (2016-10), it would be worth $2,523.75 as of 2026-10-29, with dividends reinvested.
How would $100 a month in Alliant Energy have performed?
Investing $100 at each monthly close after the starting month (2016-10), with no initial lump sum, would turn $12,000.00 contributed into $19,383.50. Contributions start the following month.
How does this compare with the S&P 500?
Over 2016-10 to 2026-10, $1,000 in Alliant Energy became $2,523.75; $1,000 in SPY became $4,238.51 with dividends reinvested.
How much would $1,000 in Alliant Energy in 2006 be worth today?
$1,000 invested in Alliant Energy at the January 2006 close would be worth $9,913.69 as of October 29, 2026, with dividends reinvested.
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$100 a month in Alliant Energy