NiSource (NI) Stock Could Be 8% Undervalued on Its Regulated Growth Narrative

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NiSource Inc

NI

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Why NiSource Is Drawing Fresh Attention

NiSource (NI) is back on investor radars after recent trading moves, with the stock last closing at $47.26. The company’s regulated utility profile, returns and earnings trends are prompting closer review.

Recent trading has been relatively steady, with a modest 1-day share price return of 1.05% and a 90-day share price return of 3.94%. NiSource’s 1-year total shareholder return of 22.78% and 5-year total shareholder return of 121.95% reflect performance measured over a longer horizon.

If you are comparing NiSource with other grid and utility operators, this may be a useful moment to broaden your watchlist using our screener of 34 power grid technology and infrastructure stocks

With NiSource shares delivering strong multi year returns and trading not far from some analyst price targets, the key question now is whether the current valuation leaves upside on the table or if the market is already pricing in future growth.

Most Popular Narrative: 8% Undervalued

NiSource’s most followed narrative anchors on a fair value of $51.36 per share, which sits above the last close at $47.26 and frames the current debate around upside.

Strong visibility into multi-year, rate-based capital expenditure ($19.4B base plan, plus $2B+ in upside/incremental projects) positions NiSource for 6 to 8% annual EPS growth and compound growth in regulated revenue.

Read the complete narrative. Read the complete narrative.

Want to see what sits behind that funding plan and earnings path? The narrative leans on steady top line expansion, firmer margins and a richer future earnings multiple. The detailed assumptions explain how that flows into the $51.36 fair value.

Result: Fair Value of $51.36 (UNDERVALUED)

However, the NiSource narrative still depends heavily on regulators approving large gas and electric projects, and on long term gas demand holding up against electrification and decarbonization pressures.

Another View On NiSource’s Valuation

While the most popular NiSource narrative points to an 8% undervaluation versus a fair value of $51.36, the current P/E of 23.5x tells a different story. It sits above both the estimated fair ratio of 21.8x and the global Integrated Utilities average of 18.4x, which implies less room for error if growth or regulatory support comes in softer than expected. So which signal do you trust more when pricing your risk and return trade off?

For a closer look at how this ratio gap could close over time, including what the numbers say about today’s price, See what the numbers say about this price — find out in our valuation breakdown.

NYSE:NI P/E Ratio as at Jun 2026
NYSE:NI P/E Ratio as at Jun 2026

Next Steps

With mixed signals on valuation and sentiment around NiSource, now is a good time to check the data yourself and decide how you feel about the balance of risk and reward. Start with 2 key rewards and 3 important warning signs.

Looking for more investment ideas beyond NiSource?

If you stop with NiSource alone, you could miss other opportunities that fit your style, so broaden your search now with a few targeted stock ideas.

  • Spot potential value opportunities early by checking companies highlighted in the 45 high quality undervalued stocks that combine quality with attractive pricing signals.
  • Build a sturdier core for your portfolio by focusing on stocks in the solid balance sheet and fundamentals stocks screener (48 results) that pair financial resilience with fundamental strength.
  • Get ahead of the crowd by reviewing the screener containing 19 high quality undiscovered gems, where lesser known businesses with strong metrics are already on the radar.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.