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Alliant Energy Corp (LNT) fair value: what the stock is really worth

We calculate from audited financials what Alliant Energy Corp is really worth. The fair value tells you whether the price is too high or too low, the quality score (0 to 100) how solid the business behind it is. 26 models, 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
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Utilities · US · ISIN US0188021085

AE Alliant Energy Corp logo Broad data Sep 18, 2026

Alliant Energy Corp

LNT · US

Weakest SetupStrongly overvalued and low quality.

!Fair value $35.30 · Strongly overvalued (−46%)
!Quality 42/100
!Expensive Growth (revenue 5y +5.0 %/yr)
✓Solidly profitable · 18.6% net margin (TTM)
!Moderate debt · negative free cash flow
·3.17% dividend yield
!Trails peers (4/14)
!Moderate moat 57/100
!Insider activity 40/100
!Weak on future: 25 out of 100
!Weak on balance sheet: 25 out of 100
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What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

$78.03 $42.12 Fair Value $35.30 Jun 2021 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 18, 2026.

How to read this chart

60‑month range $42.12 – $78.03 · fair‑value band $26.43 – $53.19 · the $64.97 price screens above the $35.30 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 18, 2026.

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Company profile

Alliant Energy Corporation operates as a utility holding company that provides regulated electric and natural gas services in the United States. It operates through IPL and WPL segments.

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Alliant Energy Corporation operates as a utility holding company that provides regulated electric and natural gas services in the United States. It operates through IPL and WPL segments. The company's IPL segment engages primarily in the generation and distribution of electricity and the distribution and transportation of natural gas to retail customers in select markets in Iowa. This segment also sells electricity to wholesale customers in Minnesota, Illinois and Iowa; and generates and distributes steam for two customers in Cedar Rapids, Iowa. Its WPL segment generates and distributes electricity, and distributes and transports natural gas to retail customers in select markets in Wisconsin; and sells electricity to wholesale customers in Wisconsin. It serves retail customers in the farming, agriculture, industrial manufacturing, chemical, packaging, and food industries, as well as wholesale customers comprising municipalities and rural electric cooperatives. In addition, the company owns and operates a short-line rail freight service in Iowa; a Mississippi River barge, rail, and truck freight terminal in Illinois; freight brokerage services; wind turbine blade recycling services; and a rail-served warehouse in Iowa. Further, it holds interests in a natural gas-fired electric generating unit near Sheboygan Falls, Wisconsin; and a wind farm located in Oklahoma. The company was formerly known as Interstate Energy Corp. and changed its name to Alliant Energy Corporation in May 1999. Alliant Energy Corporation is headquartered in Madison, Wisconsin.

Stock analysis

Alliant Energy Corp (LNT) currently trades at $64.97, while our model-based Fair Value estimate is $35.30, implying the stock looks roughly 84.1% overvalued today.

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Valuation

Bull case: the Growth Earnings group reads highest at a median of $45.99 per share, and 0 of the 13 models we run sit above the $64.97 price.

Bear case: the Earnings-Based group reads lowest at $11.73, and 13 of the 13 models stay below the price. Evidence for this calculation is high.

Scenario range: $26.43 (bear) to $53.19 (bull), the price of $64.97 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 42/100 (below-average quality), in the Utilities sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

Alliant Energy Corp reported revenue of $4.4B in FY2025 versus $3.7B in FY2021, a compound +4.4%/yr. Reported net income was $810M in FY2025, compounding +4.7%/yr from FY2021.

Key figures

Market cap $19.3B · P/E ratio 20.4 · P/S ratio 3.79 · EPS (TTM) $3.18 · Dividend yield 3.2% · Net margin 18.6% · Return on equity 11.3% · Return on assets (EBIT) 4.2%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 46 out of 100 (low confidence).

What moves the price

The share trades about 14% below its 52-week high and 12% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Utilities peers we cover trades at −36% fair-value upside, at −46%, LNT screens richer than that median.

Fair Value models

Bear $26.43 Fair Value $35.30 Bull $53.19
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Based on fiscal year 2025 figures (about 9 months old). Earnings retained since then ($0.8115 per share) are deliberately not added. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
Residual Income $25.78 $29.22 $46.18 75
EPV n/a n/a $4.39 68
ROIC Compounder n/a n/a $4.39 68
All 15 models by family
Earnings-Based
Graham-Dodd $21.33 $49.00 $62.87 65
PEG = 1.0 $8.21 $11.73 $15.25 57
EPV n/a n/a $4.39 68
Dividend Discount
Gordon GGM $18.52 $30.96 $45.61 67
DDM Multi-Stage $18.52 $27.23 $36.90 66
Multiples
P/E Multiple $42.34 $56.45 $70.56 63
P/S Multiple $31.67 $42.22 $52.78 58
P/B Multiple $38.33 $51.11 $63.89 55
EV/EBIT $4.39 $19.27 $34.15 59
EV/EBITDA $14.07 $32.18 $50.29 63
EV/Revenue n/a $1.96 $14.63 50
Asset-Based
NCAV (Graham) $14.20 $19.03 $28.40 54
Economic Profit
Residual Income $25.78 $29.22 $46.18 75
ROIC Compounder n/a n/a $4.39 68
Growth Earnings
Growth-Adj P/E $32.19 $45.99 $59.79 67

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Quality Score breakdown

Overall quality 42/100

Of which business quality 39 · Market factors (momentum, volatility) 53

Profitability 34
Margins and returns on capital today
Quality Growth 42
Are margins and returns improving?
Cashflow 39
Earnings quality: real cash, not paper profit
Fin. Strength 15
Balance sheet, leverage, solvency risk
Investment 44
Disciplined investing over empire-building
Low Volatility 97
Calm price path (market factor)
Momentum 38
Price trend over the last 3–12 months (market factor)
52W Momentum 28
Distance to the 52-week high (market factor)
Net Issuance 75
Share count: buybacks or dilution?

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Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 36/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+9.6%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+1.2%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+5.0%
Revenue growth 40 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+5.1%
What shareholders gained per year (last 5 years) ⓘWhat the business itself delivers per year: earnings growth per share plus the dividend yield. This is what you get IF the market keeps valuing the stock the same way: it contains no assumption about the market changing its mind. Computed per share, so buybacks count and a merger does not pass as growth. For a company that pays no dividend it is pure earnings growth per share. Period: earnings growth per share as CAGR over the last 5 reported fiscal years (annual statements), plus the current dividend yield. The start value is the median of the three years around the start, so a single crisis year (a pandemic or a write-down) does not distort the rate. Basis: adjusted.
+4.8%
Earnings growth per share plus dividend.
Earnings per share, growth per year+1.6%
Dividend (yield on the price)3.2%
Pace: 5 vs 10 years ⓘTwo data points, not a trend model: earnings growth per share over the last 5 fiscal years against the last 10. Labelled "steady" when both rates are within 3 percentage points of each other, otherwise picking up or flattening. Shown only when ten years of history exist.5% vs 6%, steady
Profit margin 2020 to 2025 ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.22% → 24%

LNT screens 84% overvalued. Compare with NextEra Energy, Inc →

Recent news

News mood ⓘNews mood, the average tone of recent news (97 articles), rated against how stocks are usually covered. 🚀 Hype = unusually upbeat · 🙂 Positive = above average · 😐 Neutral = typical · 🙁 Negative = below average · 😨 Very negative = unusually downbeat. It reflects the tone of coverage, not our valuation. Hype
Recent news coverage is unusually upbeat, far more positive than stocks are typically covered.

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Utilities - Regulated Electric · 156 stocks

Beats the industry median on 4/14 measures
Overall it trails its industry peers.
Valuation
Quality Score 42 · Below median
Fair Value upside −38% · Below median
Profitability
Return on equity (TTM) 11% · Above median
Return on assets 3% · Below median
Net margin (TTM) 19% · Top 25%
Operating margin (TTM) 21% · Above median
Growth and dividend
Revenue growth 5% · Below median
Dividend yield (TTM) 3.2% · Below median
Balance sheet
Debt / equity 1.49× · Highest 25%

Valuation Multiplesvs Utilities - Regulated Electric median · lower = cheaper

P/E (TTM) 20.4× · Pricier than median
P/B 2.63× · Priciest 25%
P/S (TTM) 4.37× · Priciest 25%
EV/EBITDA 16.0× · Priciest 25%
PEG 2.47× · Cheaper than median

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 8
FUTURE (revenue growth)25 · sector 32
PAST (return on equity)45 · sector 39
HEALTH (low debt)25 · sector 53
DIVIDEND (yield)63 · sector 68

VALUE 0: the price sits above our fair-value range.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Utilities - Regulated Electric stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
NextEra Energy, Inc NEE $81.07 $29.88 −63%
The Southern Company SO $85.95 $58.74 −32%
Duke Energy Corporation DUK $117.76 $74.89 −36%
National Grid plc NGG $76.86 $50.23 −35%
American Electric Power Company AEP $120.69 $77.23 −36%
Dominion Energy, Inc D $63.87 $37.67 −41%
Entergy Corporation ETR $102.92 $38.37 −63%
Xcel Energy Inc XEL $72.49 $44.61 −38%
Exelon Corporation EXC $42.44 $36.26 −15%
Consolidated Edison, Inc ED $105.24 $47.92 −54%

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Alliant Energy Corp · Fair Value
$35.30 −84%Fair Value
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Cite: Fair Value Calculator (2026). "Alliant Energy Corp Fair Value". https://www.fairvalue-calculator.com/stock/LNT

Frequently asked questions

Is Alliant Energy Corp (LNT) overvalued or undervalued?
As of Sep 18, 2026, our model estimates a fair value of $35.30 versus a price of $64.97, about −46% upside (overvalued).
What is the fair value of LNT?
Our model-based fair value for Alliant Energy Corp is $35.30 (as of Sep 18, 2026), built from audited fundamentals. The current price: $64.97.
What is the quality score of LNT?
Alliant Energy Corp has a Quality Score of 42/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Alliant Energy Corp (LNT)?
Our model-based price target is the fair value of $35.30 (as of Sep 18, 2026) from 15 valuation models. Cautious scenario $26.43, optimistic scenario $53.19. It is a calculation from audited fundamentals, not an analyst target.
What is the Alliant Energy Corp stock forecast for 2026?
Our models put fair value at $35.30, about −46% upside versus a price of $64.97 (overvalued). Cautious scenario $26.43, optimistic scenario $53.19. The calculation is refreshed regularly with new filings.
What is the revenue of Alliant Energy Corp (LNT)?
Alliant Energy Corp reported trailing-twelve-month revenue of about $4.4B (latest available figure, as of Sep 18, 2026).
Does Alliant Energy Corp pay a dividend?
Alliant Energy Corp currently shows a dividend yield of about 3.17% relative to its recent price (as of Sep 18, 2026).
What is the intrinsic value of Alliant Energy Corp (LNT)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Alliant Energy Corp it is $35.30 per share (as of Sep 18, 2026), against a price of $64.97. It is the blended result of 15 valuation models (cash flow, earnings, asset, dividend).
Is Alliant Energy Corp stock overvalued or undervalued in 2026?
As of Sep 18, 2026, LNT trades above its calculated fair value: price $64.97, fair value $35.30, a gap of about −46% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of LNT?
No. The price is what the market pays today ($64.97); the fair value is what the company's own numbers justify ($35.30). For Alliant Energy Corp the two are $29.67 per share apart. That gap is exactly why we show both numbers side by side.
How much is Alliant Energy Corp worth?
The market values Alliant Energy Corp at about $19.3B (market capitalisation, as of Sep 18, 2026). Per share that is $64.97; our models calculate a fair value of $35.30 per share.
What do the bullish and bearish scenarios say about LNT?
Our models span a range for Alliant Energy Corp: cautious scenario $26.43, base $35.30, optimistic $53.19 per share (as of Sep 18, 2026, price $64.97). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of LNT?
Alliant Energy Corp trades at a price-to-earnings ratio of 20.4 (as of Sep 18, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of $35.30 is built from several models across several years. Other multiples: PEG 2.5, P/B 2.6, P/S 4.4, EV/EBITDA 16.0.
What is the PEG ratio of LNT?
The PEG ratio of Alliant Energy Corp is 2.47 (P/E divided by earnings growth, as of Sep 18, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of Alliant Energy Corp (LNT)?
Balance-sheet figures for Alliant Energy Corp (as of Sep 18, 2026): return on equity 11.3%, debt of 1.49 per unit of equity. They feed the Quality Score of 42/100, which measures business quality independently of the share price.
How far is LNT from its 52-week high?
Alliant Energy Corp trades at $64.97, about 14% below its 52-week high of $75.76 and 12% above the low of $57.81 (as of Sep 18, 2026). Distance from the high says nothing about value: that is what the fair value of $35.30 is for.
Which stocks are comparable to Alliant Energy Corp?
From the same area (Utilities) we also value NextEra Energy, Inc, The Southern Company, Duke Energy Corporation, National Grid plc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Alliant Energy Corp stock attractive at the current price?
The data as of Sep 18, 2026: price $64.97, calculated fair value $35.30 (−46%), Quality Score 42/100, from 15 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of LNT calculated?
We run Alliant Energy Corp through 15 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $35.30, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 16.1 % above its aggregate fair value. Alliant Energy Corp itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Alliant Energy Corp (LNT)?
The closing price on Sep 21, 2026 was $64.97. Our model-based fair value is $35.30, about −46% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Alliant Energy Corp right now?
The price sits above even our optimistic bull case ($53.19). The favourable scenario is already priced in. Weak quality (42/100) and above fair value at the same time, the margin of safety is missing on both counts. A fairly wide model range ($26.43 to $53.19) leaves room in how you read the outcome.

Key figures of Alliant Energy Corp

How large is the market capitalisation of Alliant Energy Corp (LNT)?
The market capitalisation of Alliant Energy Corp is $19.3B. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Alliant Energy Corp (LNT)?
The price-to-sales ratio of Alliant Energy Corp is 3.79 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Alliant Energy Corp (LNT)?
Earnings per share at Alliant Energy Corp are $3.18 (price ÷ EPS = P/E 20.4). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Alliant Energy Corp (LNT)?
The dividend yield of Alliant Energy Corp is 3.2% (payout 64.7%). Yearly dividend relative to the share price. 3% pays 3 per 100 invested. Below: how much of profit is used for it.
What is the net margin of Alliant Energy Corp (LNT)?
The net margin of Alliant Energy Corp is 18.6% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Alliant Energy Corp (LNT)?
The return on equity (ROE) of Alliant Energy Corp is 11.3% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Alliant Energy Corp (LNT)?
On an EBIT basis the return on assets of Alliant Energy Corp is 4.2% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Alliant Energy Corp (LNT)?
The operating margin of Alliant Energy Corp is 21.0% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Alliant Energy Corp (LNT)?
Revenue at Alliant Energy Corp is growing +5.0% versus a year earlier (3y avg +1.2%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Alliant Energy Corp (LNT)?
Earnings per share at Alliant Energy Corp are growing +4.9% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Alliant Energy Corp (LNT) generate?
The free cash flow of Alliant Energy Corp is −$1.3B (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Alliant Energy Corp (LNT) carry?
The net debt of Alliant Energy Corp is $11.8B (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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