NI currently has a PEG ratio reading of 2.75 as of Jul 31, 2026. This metric factors in a PE of 22 with an earnings growth rate of 8.0%. When compared to the trailing four-quarter average of 1.85, NI's PEG ratio shows a 49% increase.
NI PEG ratio history
A ten years lookback shows an average PEG ratio of 2.94 for NiSource. Compared to historical data, NI's 2.75 PEG ratio represents a decrease of 6%. Within the last ten years, the Mar 2024 quarter recorded the highest PEG value at 28.82. At 0.03, the Dec 2021 quarter showed the minimum PEG ratio in this period.
NiSource PEG ratio by year
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| 2025 | 1.05 | 21.31 | 20.2% |
| 2024 | 9.02 | 22.55 | 2.5% |
| 2023 | N/A | 16.7 | -13.6% |
| 2022 | 0.41 | 14.9 | 36.3% |
| 2021 | 0.03 | 20.45 | 810.5% |
| 2020 | N/A | N/A | -121.6% |
| 2019 | 0.05 | 31.64 | 588.9% |
| 2018 | N/A | N/A | -146.2% |
| 2017 | N/A | 65.82 | -62.1% |
| 2016 | 1.49 | 21.5 | 14.4% |
| 2015 | N/A | 21.68 | -46.4% |
| 2014 | N/A | 25.25 | -1.2% |
| 2013 | 1.02 | 19.34 | 18.9% |
| 2012 | 0.5 | 17.41 | 34.9% |
| 2011 | 5.76 | 22.46 | 3.9% |
NiSource PEG ratio by quarter (TTM)
| Year | PEG ratio | PE ratio | Growth YoY |
|---|---|---|---|
| Mar 2026 | 2.89 | 23.1 | 8% |
| Dec 2025 | 1.05 | 21.31 | 20.2% |
| Sep 2025 | 1.74 | 22.67 | 13% |
| Jun 2025 | 1.71 | 21.23 | 12.4% |
| Mar 2025 | 1.27 | 21.44 | 16.9% |
| Dec 2024 | 9.02 | 22.55 | 2.5% |
| Sep 2024 | 4.77 | 20.5 | 4.3% |
| Jun 2024 | 2.05 | 17.05 | 8.3% |
| Mar 2024 | 28.82 | 17.29 | 0.6% |
| Dec 2023 | N/A | 16.7 | -13.6% |
| Sep 2023 | N/A | 15.23 | -3% |
| Jun 2023 | N/A | 17.53 | -6.6% |
| Mar 2023 | N/A | 17.58 | -4.2% |
| Dec 2022 | 0.41 | 14.9 | 36.3% |
| Sep 2022 | 0.33 | 15.08 | 45.2% |
NI average PEG ratio chart
Measured against past performance, NI's PEG ratio is below the 3, 5 and 10-year averages.
PEG comparison
With a PEG of 2.75, NI stands above the Utilities sector and the industry average. Compared to its Utilities sector average of 1.51, NiSource's PEG is 82% higher.
NI EPS growth
NI Price vs fair value
NI PEG vs peers
Compared to its peer stocks DUK and ATO, NI's PEG ratio comes in higher.
| Stock name | PEG ratio | Market cap |
|---|---|---|
| CPK Chesapeake Utilities Corp | 1.35 | $3.2B |
| ATO Atmos Energy Corp | 1.5 | $28.89B |
| DUK Duke Energy Corp | 2.31 | $97.49B |
| NI NiSource Inc | 2.74 | $21.25B |
| SRE Sempra | N/A | $57.43B |
| GNE Genie Energy Ltd | N/A | $367.14M |
Frequently asked questions
What is NiSource's PEG ratio?
According to Jul 31, 2026 data, NI's PEG ratio sits at 2.75.
What is the 3-year average PEG ratio for NiSource (NI)?
Over the last 3 years, NI's PEG ratio has settled near 5.92.
What is the 5-year average PEG ratio for NiSource (NI)?
Over the last 5 years, NI's PEG ratio has settled near 3.62.
What is the highest PEG ratio for NI?
NI's PEG ratio peaked at 28.82 during the Mar 2024 quarter - the highest in ten years.
How does the current PEG ratio for NI compare to its historical average?
NI currently has a PEG ratio 6% below its 10-year average.
Why is NiSource's PEG ratio so high?
Slow earnings growth combined with a high valuation pushes NI's PEG ratio to 2.75.
How is NI's PEG ratio calculated (NiSource PEG ratio formula)?
The PEG ratio comes from taking PE and dividing by the rate at which earnings are growing (YoY TTM). As of Jul 31, 2026, NiSource has a P/E ratio of 22. Earnings grew at 8.0% over the TTM period ending Mar 2026. Applying the formula, this produces a price to earnings growth ratio of 2.75. PEG RATIO(2.75) = PE RATIO(22) / EPS GROWTH(8.0%)
All PEG ratio stats are based on quarterly TTM periods, unless otherwise specified.