Alliant Energy (LNT) was recently removed from the Russell 1000 Dynamic Index, an adjustment that can influence flows from index-tracking funds and prompt investors to reassess how the stock fits in diversified portfolios.

Alongside its removal from the Russell 1000 Dynamic Index, Alliant Energy’s recent trading has been strong, with a 1-month share price return of 10.23% and an 18.97% year to date share price return. Its 1-year total shareholder return sits at 30.80%, which points to solid, longer term momentum.

If this kind of utility related move has your attention, it could be a good moment to see what else is shaping the grid transition through our 35 power grid technology and infrastructure stocks

So, with Alliant Energy posting strong recent returns and trading only slightly below a US$79.13 analyst price target, is the stock still undervalued at this level, or is the market already pricing in future growth?

Most Popular Narrative: 1% Undervalued

The most followed narrative puts Alliant Energy’s fair value at $79.13, only slightly above the latest close at $78.03. This suggests a finely balanced setup rather than an obvious mispricing.

The company's adaptive resource planning and regulatory flexibility in Iowa and Wisconsin allows rapid deployment of new generation capacity, positioning Alliant to capture higher allowed returns and efficiently expand its regulated asset base, supporting long-term earnings growth and margin expansion.

Curious what sits behind that $79.13 figure? The narrative leans on steady top line expansion, thicker margins and a future earnings multiple that assumes regulators, customers and infrastructure all stay in sync.

Result: Fair Value of $79.13 (UNDERVALUED)

However, Alliant Energy’s story also leans heavily on large data center projects and continued regulatory support, so delays or tougher rate decisions could quickly challenge this fair value narrative.

Another View on Alliant Energy’s Valuation

The analyst narrative points to Alliant Energy as roughly fairly priced around $79.13, yet the current P/E of 24.5x tells a different story. It sits above both the US Electric Utilities industry at 22x and peers at 17.5x, and even above a fair ratio of 22.4x.

That gap suggests investors are already paying a premium for Alliant Energy’s earnings, which reduces the margin of safety if growth or regulation do not line up with expectations. The key question is whether that premium feels justified to you or more like valuation risk that needs a closer look.

Next Steps

If the mixed messages around Alliant Energy have you on the fence, take a closer look at both sides of the story and move quickly to form your own view by weighing the 2 key rewards and 2 important warning signs

Looking for more investment ideas beyond Alliant Energy?

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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.