LNT currently shows a PE to growth ratio reading of 2.3 as of Jun 22, 2026. This metric combines a PE of 22.95 with an earnings growth rate of 10.0%. When compared to the trailing 4-quarter average of 1.24, LNT's PEG ratio reflects a 86% increase.
A ten years lookback reveals an average PEG ratio of 3.86 for Alliant Energy. Compared to historical data, LNT's 2.3 PEG ratio represents a drop of 40%. Within the past ten years, the Sep 2019 quarter saw the highest PEG reading at 26.76. At 0.58, the Jun 2025 quarter represented the lowest PEG ratio in this timeframe.
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 1.21 | 20.64 | 17.1% |
| 2024 | N/A | 21.99 | -3.2% |
| 2023 | 10.25 | 18.45 | 1.8% |
| 2022 | 5.32 | 20.22 | 3.8% |
| 2021 | 3.6 | 23.37 | 6.5% |
| 2020 | 3.73 | 20.86 | 5.6% |
| 2019 | 3.44 | 23.38 | 6.8% |
| 2018 | 1.91 | 19.29 | 10.1% |
| 2017 | 1.01 | 21.41 | 21.3% |
| 2016 | N/A | 23.1 | -2.4% |
| 2015 | N/A | 18.59 | -2.9% |
| 2014 | 2.56 | 19.2 | 7.5% |
| 2013 | 1.46 | 16.02 | 11% |
| 2012 | 2.61 | 15.14 | 5.8% |
| 2011 | 2.98 | 16.1 | 5.4% |
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 2.25 | 22.5 | 10% |
| Dec 2025 | 1.21 | 20.64 | 17.1% |
| Sep 2025 | 0.91 | 21.2 | 23.3% |
| Jun 2025 | 0.58 | 18.66 | 32.2% |
| Mar 2025 | 4.03 | 22.19 | 5.5% |
| Dec 2024 | N/A | 21.99 | -3.2% |
| Sep 2024 | N/A | 23.52 | -5.5% |
| Jun 2024 | N/A | 20.78 | -6.1% |
| Mar 2024 | 3.16 | 18.33 | 5.8% |
| Dec 2023 | 10.25 | 18.45 | 1.8% |
| Sep 2023 | 5.92 | 17.75 | 3% |
| Jun 2023 | N/A | 20.11 | -5.8% |
| Mar 2023 | N/A | 20.54 | -4.4% |
| Dec 2022 | 5.32 | 20.22 | 3.8% |
| Sep 2022 | 4.26 | 20 | 4.7% |
LNT's PEG ratio today is lower than the 3, 5 and 10-year averages.
With a PEG of 2.3, LNT stands higher than the Utilities sector, the industry and its peers average. Looking at the Utilities sector average of 1.29, Alliant Energy's PEG is 78% higher.
Relative to its peers, LNT's PEG ratio is lower than XEL's and CMS's yet above DUK's and NU's. With a PEG ratio of 2.3, Alliant Energy is higher than the 1.64 peer average.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| NU Nu Holdings Ltd | 0.41 | $62.11B |
| AEE Ameren Corp | 0.82 | $30.36B |
| MGEE Mge Energy Inc | 1.85 | $2.79B |
| DUK Duke Energy CORP | 2.28 | $96.3B |
| LNT Alliant Energy Corp | 2.3 | $18.91B |
| CMS Cms Energy Corp | 2.86 | $22.8B |
| XEL Xcel Energy Inc | 8.68 | $49.2B |
| WEC Wec Energy Group Inc | N/A | $36.82B |
| DTE Dte Energy Co | N/A | $30.54B |
LNT has a PEG ratio of 2.3, per Jun 22, 2026 data.
LNT has a 3-year average PEG ratio of 3.54.
LNT has a 5-year average PEG ratio of 3.51.
The Sep 2019 quarter marked the ten years high at 26.76 for LNT's PEG ratio.
LNT currently has a PEG ratio 40% below its 10-year average.
A 2.3 PEG ratio for LNT suggests the stock trades at a premium relative to its growth trajectory.
To calculate the PEG ratio, take the company's PE ratio and divide by its earnings per share growth (YoY TTM). As of Jun 22, 2026, Alliant Energy has a PE ratio of 22.95. Earnings grew at 10.0% over the TTM period ending Mar 2026. Applying the formula, this gives a PEG ratio of 2.3. PEG RATIO(2.3) = PE RATIO(22.95) / EPS GROWTH(10.0%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.