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ALLIANT ENERGY CORP LNT

Nasdaq · stock · Electric & Other Services Combined · website · IPO 1976-03-30 · LEI

ALLIANT ENERGY CORP statistics & valuation

Market cap$20.0B
P / E24.6×
P / S4.6×
P / B2.7×
Dividend yield2.61%
Net margin18.6%
Return on equity11.0%
Net debt$10.4B
Net debt / EBITDA5.6×
Enterprise value USD$30.3B
EV / EBITDA16.2×
Earnings yield EBIT/EV3.4%
Return on capital4.5%
Graham number -36.2%$44.83

Market cap as of 2026-06-29. Multiples are price-derived and refreshed daily; everything else from the latest financial reports. The Graham number is Benjamin Graham's rough maximum fair value ($44.83); a green figure means the price is below it.

Profitability & efficiency

Net margin (%)
11.50% 13.80% 14.80% 15.50% 18.30% 18.40% 16.30% 17.50% 17.30% 18.60% 2016201720182019202020212022202320242025
Gross margin (%)
2016201720182019202020212022202320242025
Operating margin (%)
16.70% 19.80% 19.60% 21.30% 21.70% 21.70% 22.10% 23.40% 22.30% 23.50% 2016201720182019202020212022202320242025
Return on equity (%)
9.40% 10.70% 10.90% 10.50% 10.60% 11.30% 10.90% 10.40% 9.90% 11.00% 2016201720182019202020212022202320242025
Shares outstanding
227.7M 231.3M 236.1M 245.0M 249.9M 250.7M 251.2M 256.1M 256.8M 257.8M 2016201720182019202020212022202320242025
Net debt ($)
$4.31B $3.98B $5.23B $5.52B $6.71B $6.70B $7.65B $8.16B $8.60B $10.40B 2016201720182019202020212022202320242025
Share buybacks ($)
2016201720182019202020212022202320242025
Return on assets (%)
2.90% 3.30% 3.40% 3.40% 3.50% 3.60% 3.40% 3.30% 3.00% 3.20% 2016201720182019202020212022202320242025
Free cash flow margin (%)
-24.20% -27.90% -31.30% -26.90% -25.30% -16.00% -23.70% 2016201720182019202020212022202320242025
Debt / equity (×)
1.06× 0.92× 1.10× 1.02× 1.15× 1.12× 1.22× 1.21× 1.24× 1.49× 2016201720182019202020212022202320242025
EPS ($)
$1.99 $2.19 $2.33 $2.47 $2.63 $2.73 $2.78 $2.69 $3.14 2016201720182019202020212022202320242025

Margins and returns computed from annual filings. Falling shares outstanding = buybacks; rising = dilution. Net debt = debt − cash (negative = net cash).

P / E vs its own history

ALLIANT ENERGY CORP trades at about 22.4× earnings — above its 10-year norm (10-year range 15.5×–25.5×, median 20.3×).

15.5× 25.5×

Shaded band = 10-year range (15.5×–25.5×); dot = today's 22.4×.

Historical P/E = month-end price near each fiscal year-end ÷ that year's EPS. A read on whether the stock is cheap or dear relative to how it has typically been valued — not a forecast.

Key ratios (by fiscal year)

RatioFY2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY2017FY2016
Operating margin23.5%22.3%23.4%22.1%21.7%21.7%21.3%19.6%19.8%16.7%
Net margin18.6%17.3%17.5%16.3%18.4%18.3%15.5%14.8%13.8%11.5%
FCF margin———-23.7%-16.0%-25.3%-26.9%-31.3%-27.9%-24.2%
Return on assets3.2%3.0%3.3%3.4%3.6%3.5%3.4%3.4%3.3%2.9%
Return on equity11.0%9.9%10.4%10.9%11.3%10.6%10.5%10.9%10.7%9.4%
Debt / equity1.49×1.24×1.21×1.22×1.12×1.15×1.02×1.10×0.92×1.06×
Current ratio0.800.440.550.530.520.680.430.480.420.75

Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.