Alliant Energy Stock Price History
NASDAQ: LNTUtilitiesPower GenerationUSD
65.85+0.35 (+0.53%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
LNT price history at a glance
The price history for Alliant Energy (LNT) on this page begins on February 19, 1973, when the stock closed at $5.03; it most recently closed at $65.85 on October 5, 2026. The highest price in this record is $78.81, reached on July 6, 2026; the latest close is 16.4% below that peak. Across the 52 complete calendar years in the table, LNT finished higher in 31 and lower in 21. Its best year was 2003 (+44.1%) and its worst was 2002 (-43.2%).
Over roughly 54 years the share price changed +1208.8%, a 4.9% compound annual price return (excluding dividends). In the last 12 months alone, LNT has lost 2.1%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1973
- $78.81
- Date of high
- Jul 6, 2026
- Low since 1973
- $3.38
- Date of low
- Sep 9, 1974
- 52-week high
- $78.81
- 52-week low
- $62.54
- Last close
- $65.85
LNT returns
1 week
+2.36%
1 month
-2.96%
3 months
-13.81%
6 months
-9.92%
Year to date
+1.29%
1 year
-2.07%
3 years
+32.36%
5 years
+18.07%
LNT price return, excluding dividends.
LNT annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 65.85 | +0.40% |
| 2025 | 65.59 | +12.43% |
| 2024 | 58.34 | +13.72% |
| 2023 | 51.30 | -7.08% |
| 2022 | 55.21 | -10.18% |
| 2021 | 61.47 | +19.29% |
| 2020 | 51.53 | -4.22% |
| 2019 | 53.80 | +28.95% |
| 2018 | 41.72 | -2.09% |
| 2017 | 42.61 | +12.46% |
| 2016 | 37.89 | +21.35% |
| 2015 | 31.23 | -6.09% |
| 2014 | 33.25 | +31.19% |
| 2013 | 25.35 | +11.60% |
| 2012 | 22.71 | +2.97% |
| 2011 | 22.06 | +19.96% |
| 2010 | 18.39 | +21.51% |
| 2009 | 15.13 | +1.92% |
| 2008 | 14.85 | -25.70% |
| 2007 | 19.98 | +5.80% |
| 2006 | 18.89 | +34.70% |
| 2005 | 14.02 | -1.96% |
| 2004 | 14.30 | +15.23% |
| 2003 | 12.41 | +44.05% |
| 2002 | 8.62 | -43.23% |
| 2001 | 15.18 | -4.78% |
| 2000 | 15.94 | +15.91% |
| 1999 | 13.75 | -14.73% |
| 1998 | 16.13 | -2.64% |
| 1997 | 16.56 | +17.78% |
| 1996 | 14.06 | -8.16% |
| 1995 | 15.31 | +11.87% |
| 1994 | 13.69 | -16.73% |
| 1993 | 16.44 | -2.95% |
| 1992 | 16.94 | +3.44% |
| 1991 | 16.38 | +36.46% |
| 1990 | 12.00 | -1.54% |
| 1989 | 12.19 | +5.98% |
| 1988 | 11.50 | +5.75% |
| 1987 | 10.88 | -14.29% |
| 1986 | 12.69 | +24.92% |
| 1985 | 10.16 | +37.71% |
| 1984 | 7.38 | +3.51% |
| 1983 | 7.13 | +18.75% |
| 1982 | 6.00 | +24.68% |
| 1981 | 4.81 | +14.07% |
| 1980 | 4.22 | -3.57% |
| 1979 | 4.38 | -7.89% |
| 1978 | 4.75 | -10.06% |
| 1977 | 5.28 | -5.06% |
| 1976 | 5.56 | +31.85% |
| 1975 | 4.22 | +12.50% |
| 1974 | 3.75 | -17.24% |
| 1973* | 4.53 | -9.94% |
* Partial year: the record begins after the start of 1973; return measured from the first available close.
2026 return is year to date.
LNT daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 65.67 | 65.97 | 65.28 | 65.85 | +0.53% | |
| 65.31 | 65.70 | 64.86 | 65.50 | +0.44% | |
| 65.40 | 65.67 | 65.10 | 65.21 | -0.43% | |
| 64.67 | 65.54 | 64.44 | 65.49 | +1.87% | |
| 64.18 | 64.80 | 63.97 | 64.29 | -0.06% | |
| 63.79 | 65.20 | 63.79 | 64.33 | +0.97% | |
| 63.30 | 63.93 | 62.54 | 63.71 | +0.65% | |
| 64.54 | 64.65 | 63.18 | 63.30 | -1.62% | |
| 62.81 | 64.47 | 62.77 | 64.34 | +1.79% | |
| 63.44 | 63.81 | 62.78 | 63.21 | -0.61% | |
| 63.26 | 63.65 | 62.70 | 63.60 | +0.46% | |
| 63.85 | 64.00 | 63.27 | 63.31 | -0.60% | |
| 64.66 | 64.66 | 63.56 | 63.69 | -1.44% | |
| 64.98 | 65.33 | 64.57 | 64.62 | -0.54% | |
| 65.62 | 65.70 | 64.76 | 64.97 | -0.98% | |
| 66.50 | 66.50 | 65.56 | 65.61 | -1.55% | |
| 66.23 | 66.75 | 66.05 | 66.64 | +0.80% | |
| 66.32 | 66.73 | 65.80 | 66.11 | +0.18% | |
| 67.05 | 67.13 | 65.91 | 65.99 | -1.39% | |
| 67.30 | 67.71 | 66.74 | 66.92 | -0.51% | |
| 67.80 | 67.80 | 67.03 | 67.26 | +0.01% | |
| 67.89 | 68.43 | 67.16 | 67.25 | -0.90% | |
| 68.60 | 68.97 | 67.42 | 67.86 | -1.09% | |
| 67.86 | 69.04 | 67.86 | 68.61 | +0.94% | |
| 67.57 | 68.54 | 67.44 | 67.97 | -0.04% | |
| 67.93 | 68.44 | 67.67 | 68.00 | +0.38% | |
| 67.88 | 68.12 | 67.22 | 67.74 | -0.27% | |
| 67.98 | 68.58 | 67.55 | 67.92 | -0.09% | |
| 67.61 | 68.33 | 67.38 | 67.98 | -0.07% | |
| 68.59 | 68.73 | 67.73 | 68.03 | -0.26% | |
| 68.31 | 68.51 | 67.90 | 68.21 | -1.03% | |
| 68.34 | 69.19 | 68.17 | 68.92 | +0.85% | |
| 68.50 | 68.68 | 68.14 | 68.34 | -0.12% | |
| 68.01 | 68.50 | 67.68 | 68.42 | +0.83% | |
| 69.76 | 70.51 | 67.81 | 67.86 | -2.30% | |
| 69.80 | 70.59 | 69.43 | 69.46 | -0.98% | |
| 70.48 | 70.64 | 69.84 | 70.15 | +0.24% | |
| 71.25 | 71.46 | 69.95 | 69.98 | -0.53% | |
| 70.15 | 70.44 | 69.77 | 70.35 | -0.35% | |
| 70.01 | 70.77 | 69.99 | 70.60 | +0.57% | |
| 70.46 | 70.77 | 70.15 | 70.20 | -0.06% | |
| 68.95 | 70.46 | 68.81 | 70.24 | +2.42% | |
| 68.06 | 68.77 | 67.54 | 68.58 | +0.54% | |
| 69.55 | 69.55 | 67.94 | 68.21 | -1.67% | |
| 69.41 | 69.86 | 68.89 | 69.37 | -0.22% | |
| 71.05 | 71.05 | 69.06 | 69.52 | -0.97% | |
| 70.63 | 70.63 | 69.38 | 70.20 | -0.65% | |
| 71.05 | 71.21 | 70.23 | 70.66 | -0.86% | |
| 70.71 | 71.63 | 70.14 | 71.27 | +0.69% | |
| 70.46 | 71.14 | 69.92 | 70.78 | -0.16% | |
| 72.17 | 72.29 | 70.69 | 70.89 | -1.54% | |
| 74.12 | 74.31 | 71.70 | 72.00 | -2.43% | |
| 74.85 | 75.31 | 73.79 | 73.79 | -0.19% | |
| 74.64 | 75.17 | 73.73 | 73.93 | -1.35% | |
| 74.77 | 75.44 | 74.63 | 74.94 | +0.70% | |
| 73.51 | 74.80 | 73.50 | 74.42 | +0.54% | |
| 73.88 | 74.34 | 73.41 | 74.02 | +1.24% | |
| 73.96 | 74.09 | 72.36 | 73.11 | -1.15% | |
| 75.01 | 75.69 | 73.84 | 73.96 | -1.15% | |
| 76.96 | 77.11 | 74.63 | 74.82 | -1.23% | |
| 74.89 | 75.89 | 74.59 | 75.75 | +1.61% | |
| 76.04 | 76.26 | 74.44 | 74.55 | -2.31% | |
| 77.06 | 77.45 | 76.18 | 76.31 | -0.42% | |
| 76.61 | 77.30 | 76.38 | 76.63 | +0.30% | |
| 75.73 | 76.62 | 75.70 | 76.40 | +0.92% | |
| 76.37 | 76.80 | 75.57 | 75.70 | -0.88% | |
| 77.74 | 77.80 | 76.20 | 76.37 | -1.65% | |
| 77.36 | 78.81 | 76.73 | 77.65 | +1.40% | |
| 77.84 | 77.99 | 76.39 | 76.58 | -1.86% | |
| 76.23 | 78.21 | 76.03 | 78.03 | +2.96% | |
| 76.00 | 76.24 | 75.53 | 75.79 | -0.66% | |
| 77.01 | 77.13 | 76.15 | 76.29 | -1.15% | |
| 77.17 | 77.35 | 76.68 | 77.18 | -0.09% | |
| 76.53 | 77.36 | 76.33 | 77.25 | +1.39% | |
| 75.82 | 76.60 | 75.33 | 76.19 | +0.79% | |
| 74.99 | 75.69 | 74.52 | 75.59 | +1.37% | |
| 73.65 | 74.66 | 73.15 | 74.57 | +1.86% | |
| 72.93 | 74.00 | 72.81 | 73.21 | +0.29% | |
| 73.62 | 73.71 | 72.53 | 73.00 | +0.25% | |
| 73.31 | 73.91 | 72.61 | 72.82 | -1.38% | |
| 73.74 | 74.56 | 73.50 | 73.84 | +0.39% | |
| 72.84 | 73.74 | 72.24 | 73.55 | +0.60% | |
| 72.83 | 73.42 | 72.78 | 73.11 | +0.67% | |
| 73.28 | 73.74 | 72.54 | 72.62 | -0.52% | |
| 72.93 | 73.62 | 72.53 | 73.00 | +0.87% | |
| 71.69 | 72.81 | 71.36 | 72.37 | +0.92% | |
| 72.63 | 73.14 | 71.62 | 71.71 | -1.59% | |
| 71.56 | 73.24 | 71.55 | 72.87 | +2.07% | |
| 71.50 | 71.67 | 70.29 | 71.39 | +0.85% | |
| 71.07 | 72.20 | 70.76 | 70.79 | -0.24% | |
| 69.90 | 71.37 | 69.76 | 70.96 | +2.00% | |
| 70.90 | 71.08 | 69.56 | 69.57 | -2.85% | |
| 72.17 | 72.28 | 71.39 | 71.61 | -0.78% | |
| 73.75 | 73.86 | 71.91 | 72.17 | -2.14% | |
| 73.51 | 74.00 | 73.11 | 73.75 | +0.10% | |
| 74.23 | 74.67 | 73.44 | 73.68 | -0.37% | |
| 73.28 | 74.07 | 73.05 | 73.95 | +0.91% | |
| 72.34 | 73.57 | 72.31 | 73.28 | +1.08% | |
| 73.23 | 73.57 | 72.43 | 72.50 | -0.68% | |
| 72.00 | 73.13 | 71.71 | 73.00 | +1.26% | |
| 71.48 | 72.15 | 71.20 | 72.09 | +1.68% | |
| 72.45 | 72.45 | 70.89 | 70.90 | -2.14% | |
| 72.52 | 72.85 | 72.09 | 72.45 | +0.21% | |
| 72.06 | 72.73 | 71.69 | 72.30 | -0.40% | |
| 72.50 | 72.94 | 71.72 | 72.59 | +0.17% | |
| 72.14 | 72.76 | 72.06 | 72.47 | +0.99% | |
| 71.98 | 72.27 | 71.46 | 71.76 | +0.10% | |
| 72.04 | 72.26 | 71.48 | 71.69 | -0.86% | |
| 73.07 | 73.52 | 72.11 | 72.31 | -1.04% | |
| 73.57 | 73.91 | 72.81 | 73.07 | -0.83% | |
| 73.41 | 74.16 | 72.69 | 73.68 | -0.51% | |
| 73.43 | 75.76 | 72.59 | 74.06 | +0.86% | |
| 71.52 | 73.71 | 71.52 | 73.43 | +1.99% | |
| 72.46 | 72.59 | 71.69 | 72.00 | -0.63% | |
| 72.67 | 73.20 | 72.27 | 72.46 | +0.06% | |
| 72.31 | 72.87 | 72.20 | 72.42 | +0.15% | |
| 72.37 | 72.79 | 71.98 | 72.31 | -0.44% | |
| 71.55 | 72.86 | 71.45 | 72.63 | +2.35% | |
| 71.60 | 72.02 | 70.61 | 70.96 | -0.25% | |
| 72.55 | 73.27 | 71.10 | 71.14 | -1.74% | |
| 72.70 | 73.32 | 72.27 | 72.40 | -0.59% | |
| 72.47 | 72.92 | 71.73 | 72.83 | +0.08% | |
| 71.93 | 72.83 | 71.89 | 72.77 | +0.82% | |
| 71.99 | 72.38 | 71.37 | 72.18 | -0.17% | |
| 72.51 | 72.52 | 71.65 | 72.30 | -0.29% | |
| 73.14 | 73.35 | 71.98 | 72.51 | -0.81% | |
| 73.40 | 73.78 | 72.87 | 73.10 | -0.84% | |
| 72.99 | 74.40 | 72.93 | 73.72 | +1.00% | |
| 72.26 | 73.00 | 71.56 | 72.99 | +0.47% | |
| 72.10 | 73.14 | 72.10 | 72.65 | +0.28% | |
| 72.50 | 72.99 | 72.34 | 72.45 | -0.55% | |
| 72.14 | 72.99 | 71.89 | 72.85 | +1.26% | |
| 71.36 | 72.35 | 71.32 | 71.94 | +0.25% | |
| 71.55 | 71.84 | 70.56 | 71.76 | +0.38% | |
| 71.51 | 71.81 | 71.10 | 71.49 | +1.38% | |
| 70.34 | 71.25 | 70.05 | 70.52 | +0.37% | |
| 69.77 | 70.48 | 69.63 | 70.26 | +0.70% | |
| 70.00 | 70.38 | 69.49 | 69.77 | +0.16% | |
| 68.93 | 70.45 | 68.86 | 69.66 | +0.71% | |
| 69.90 | 69.90 | 68.71 | 69.17 | +0.67% | |
| 71.04 | 71.56 | 68.11 | 68.71 | -3.66% | |
| 71.78 | 72.23 | 70.60 | 71.32 | -0.61% | |
| 72.27 | 72.35 | 71.72 | 71.76 | -1.20% | |
| 73.34 | 73.36 | 72.47 | 72.63 | -0.55% | |
| 73.41 | 73.41 | 72.71 | 73.03 | +0.33% | |
| 72.31 | 72.96 | 72.14 | 72.79 | +1.70% | |
| 70.59 | 72.37 | 70.59 | 71.57 | +1.07% | |
| 71.19 | 71.62 | 70.62 | 70.81 | -0.32% | |
| 71.23 | 71.87 | 70.90 | 71.04 | -0.80% | |
| 71.55 | 71.75 | 70.67 | 71.61 | +0.08% | |
| 71.05 | 71.77 | 70.80 | 71.55 | +0.29% | |
| 71.76 | 72.19 | 70.92 | 71.34 | -1.33% | |
| 72.03 | 72.43 | 71.37 | 72.30 | +0.10% | |
| 71.51 | 72.65 | 70.80 | 72.23 | -0.14% | |
| 72.10 | 72.63 | 71.87 | 72.33 | -0.01% | |
| 71.66 | 72.40 | 71.43 | 72.34 | +1.25% | |
| 71.55 | 71.88 | 71.00 | 71.45 | +0.27% | |
| 71.85 | 72.24 | 70.37 | 71.26 | -0.52% | |
| 71.95 | 72.10 | 70.67 | 71.63 | -0.39% | |
| 71.38 | 72.20 | 71.23 | 71.91 | +1.27% | |
| 71.42 | 71.64 | 70.00 | 71.01 | +1.43% | |
| 69.79 | 70.55 | 69.75 | 70.01 | +0.69% | |
| 71.10 | 71.32 | 69.50 | 69.53 | -2.21% | |
| 71.83 | 72.26 | 70.97 | 71.10 | -0.13% | |
| 69.66 | 71.38 | 69.66 | 71.19 | +2.17% | |
| 68.69 | 70.26 | 68.64 | 69.68 | +2.13% | |
| 68.03 | 68.48 | 67.68 | 68.23 | +0.32% | |
| 67.15 | 68.61 | 66.89 | 68.01 | +1.66% | |
| 66.53 | 66.98 | 66.15 | 66.90 | +0.31% | |
| 67.53 | 67.53 | 66.08 | 66.69 | -0.21% | |
| 67.20 | 67.56 | 66.55 | 66.83 | +0.12% | |
| 66.92 | 67.32 | 66.58 | 66.75 | +0.33% | |
| 65.12 | 66.57 | 65.12 | 66.53 | +2.18% | |
| 65.91 | 66.23 | 64.93 | 65.11 | -1.21% | |
| 65.68 | 65.95 | 65.20 | 65.91 | -0.63% | |
| 66.26 | 66.94 | 65.73 | 66.33 | +0.11% | |
| 67.19 | 67.50 | 66.18 | 66.26 | -1.38% | |
| 66.87 | 67.59 | 66.80 | 67.19 | +0.27% | |
| 66.85 | 67.57 | 66.69 | 67.01 | +0.27% | |
| 66.75 | 66.86 | 65.87 | 66.83 | -0.06% | |
| 67.41 | 67.66 | 66.54 | 66.87 | -0.85% | |
| 67.74 | 67.80 | 66.84 | 67.44 | +0.24% | |
| 67.54 | 67.54 | 66.67 | 67.28 | -0.09% | |
| 66.77 | 67.63 | 66.54 | 67.34 | +0.42% | |
| 67.05 | 67.33 | 66.63 | 67.06 | +0.30% | |
| 66.17 | 67.02 | 66.17 | 66.86 | +1.04% | |
| 65.81 | 66.33 | 65.24 | 66.17 | +1.53% | |
| 65.02 | 65.45 | 64.80 | 65.17 | +0.23% | |
| 65.37 | 66.09 | 65.00 | 65.02 | -0.81% | |
| 64.63 | 65.56 | 64.60 | 65.55 | +1.47% | |
| 65.50 | 65.58 | 64.34 | 64.60 | -1.19% | |
| 64.90 | 65.47 | 64.75 | 65.38 | +0.74% | |
| 65.25 | 65.47 | 63.87 | 64.90 | -1.05% | |
| 65.01 | 66.03 | 64.64 | 65.59 | +0.89% | |
| 65.52 | 65.62 | 65.00 | 65.01 | -0.63% | |
| 65.42 | 65.66 | 65.27 | 65.42 | 0.00% | |
| 65.41 | 65.73 | 65.23 | 65.42 | +0.28% | |
| 65.36 | 65.38 | 64.97 | 65.24 | -0.32% | |
| 65.15 | 65.48 | 64.98 | 65.45 | +0.29% | |
| 65.04 | 65.33 | 64.80 | 65.26 | +0.35% | |
| 64.48 | 65.15 | 64.30 | 65.03 | +0.62% | |
| 65.42 | 65.70 | 64.53 | 64.63 | -1.61% | |
| 65.60 | 66.04 | 65.57 | 65.69 | +0.32% | |
| 65.12 | 65.67 | 64.87 | 65.48 | +0.34% | |
| 65.84 | 65.89 | 65.01 | 65.26 | -0.56% | |
| 65.60 | 65.79 | 65.14 | 65.63 | +0.46% | |
| 65.30 | 65.59 | 65.09 | 65.33 | +0.62% | |
| 65.01 | 65.66 | 64.80 | 64.93 | +0.19% | |
| 65.00 | 65.55 | 64.59 | 64.81 | -0.12% | |
| 64.97 | 65.45 | 64.72 | 64.89 | +0.17% | |
| 65.50 | 65.67 | 64.70 | 64.78 | -1.10% | |
| 65.72 | 65.89 | 65.25 | 65.50 | -0.32% | |
| 66.12 | 66.58 | 65.48 | 65.71 | -1.01% | |
| 66.59 | 66.69 | 65.85 | 66.38 | -0.23% | |
| 67.71 | 67.71 | 66.52 | 66.53 | -1.58% | |
| 69.22 | 69.42 | 67.53 | 67.60 | -2.69% | |
| 69.45 | 69.59 | 69.16 | 69.47 | +0.42% | |
| 68.68 | 69.31 | 68.60 | 69.18 | +1.02% | |
| 68.52 | 68.85 | 67.87 | 68.48 | +0.10% | |
| 68.27 | 68.55 | 67.64 | 68.41 | +0.21% | |
| 67.62 | 68.47 | 67.41 | 68.27 | +1.19% | |
| 67.54 | 67.97 | 67.33 | 67.47 | +0.37% | |
| 68.02 | 68.09 | 67.10 | 67.22 | -1.28% | |
| 68.43 | 68.79 | 67.84 | 68.09 | -0.01% | |
| 67.52 | 68.30 | 67.46 | 68.10 | +1.14% | |
| 67.51 | 67.74 | 67.10 | 67.33 | -0.13% | |
| 68.03 | 68.26 | 67.30 | 67.42 | -1.06% | |
| 67.96 | 68.45 | 67.77 | 68.14 | +0.18% | |
| 67.34 | 68.10 | 67.11 | 68.02 | +1.58% | |
| 67.19 | 67.45 | 66.64 | 66.96 | -0.56% | |
| 66.78 | 68.24 | 65.78 | 67.34 | +0.90% | |
| 66.76 | 67.47 | 66.70 | 66.74 | -0.16% | |
| 66.51 | 67.18 | 66.40 | 66.85 | +0.39% | |
| 66.77 | 66.79 | 66.20 | 66.59 | +0.18% | |
| 66.37 | 66.68 | 65.93 | 66.47 | -0.52% | |
| 67.35 | 67.35 | 66.66 | 66.82 | -1.63% | |
| 67.82 | 68.49 | 67.76 | 67.93 | +0.21% | |
| 67.91 | 68.24 | 67.53 | 67.79 | -0.28% | |
| 68.71 | 68.84 | 67.74 | 67.98 | -1.28% | |
| 68.92 | 69.29 | 68.04 | 68.86 | -0.16% | |
| 69.34 | 69.75 | 68.91 | 68.97 | +0.54% | |
| 68.88 | 69.03 | 68.03 | 68.60 | +0.06% | |
| 68.54 | 68.77 | 68.10 | 68.56 | +0.50% | |
| 68.59 | 68.95 | 67.79 | 68.22 | -0.54% | |
| 68.45 | 68.67 | 68.06 | 68.59 | +0.76% | |
| 68.05 | 68.27 | 67.73 | 68.07 | +0.70% | |
| 68.46 | 69.16 | 67.46 | 67.60 | -1.50% | |
| 68.41 | 68.80 | 68.30 | 68.63 | +0.44% | |
| 68.04 | 68.61 | 67.78 | 68.33 | +0.99% | |
| 67.64 | 68.24 | 67.32 | 67.66 | -0.13% | |
| 67.55 | 68.32 | 67.39 | 67.75 | +0.76% | |
| 68.04 | 68.04 | 67.16 | 67.24 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the LNT chart for longer ranges.