Alliant Energy
LNTNasdaq United StatesUtilitiesPower Generation
Market cap
$19.071 B
$73.53 -0.33%
Close of 6 Nov 2026
As of 6 Nov 2026, Alliant Energy (LNT) has a market capitalization of $19.1B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.
Revenue
$4.36B
#735 by revenue
Earnings
$810.0M
#454 by earnings
Shares outstanding
258,277,037
Latest filing cover page
P/E ratio
23.5
Cap ÷ net income
Power Generation, ranked by market cap
All 20 →- #10NisourceNI$21.3B
- #11EvergyEVRG$20.1B
- #12Alliant EnergyLNT$19.1B
- #13Entergy New OrleansENJ$8.82B
- #14NorthWestern Energy GroupNWE$5.06B
What if Alliant Energy were worth as much as…
Open the what-if tool →Where these numbers come from
Share counts and financials for Alliant Energy are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.