Alliant Energy - 37 Year Stock Price History | LNT

The latest closing stock price for Alliant Energy as of February 28, 2025 is 64.53.

  • An investor who bought $1,000 worth of Alliant Energy stock at the IPO in 1988 would have $35,375 today, roughly 35 times their original investment - a 10.20% compound annual growth rate over 37 years.
  • The all-time high Alliant Energy stock closing price was 64.53 on February 28, 2025.
  • The Alliant Energy 52-week high stock price is 64.76, which is 0.4% above the current share price.
  • The Alliant Energy 52-week low stock price is 47.23, which is 26.8% below the current share price.
  • The average Alliant Energy stock price for the last 52 weeks is 56.01.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Alliant Energy - 37 Year Stock Price History | LNT

  • An investor who bought $1,000 worth of Alliant Energy stock at the IPO in 1988 would have $35,375 today, roughly 35 times their original investment - a 10.20% compound annual growth rate over 37 years.
  • The all-time high Alliant Energy stock closing price was 64.53 on February 28, 2025.
  • The Alliant Energy 52-week high stock price is 64.76, which is 0.4% above the current share price.
  • The Alliant Energy 52-week low stock price is 47.23, which is 26.8% below the current share price.
  • The average Alliant Energy stock price for the last 52 weeks is 56.01.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.