Alliant Energy Corp (LNT) stock
Close on Nov 12, 2026Market cap $18.95BP/E 20.3Yield 2.78%
Alliant Energy Corp grew revenue 5.4% to $4.50B over the twelve months to Sep 30, 2026. Operating income fell 2.9% to $1.02B, moving the operating margin from 24.6% to 22.6%. At the latest close the market valued the company at $18.95B, 20.3 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $18.95B
- P/E ratio
- 20.3
- Price to sales
- 4.21
- Price to book
- 2.43
- Dividend yield
- 2.78%
- Free cash flow yield
- –
Fundamentals
- Revenue
- $4.50B
- Net income
- $934.00M
- EPS, diluted
- $3.59
- Book value per share
- $29.92
- Diluted shares
- 261M
Trading
- Next earnings
- Feb 19, 2027 (estimated, after the close)
- Previous close
- $73.62
- Open
- $73.69
- Day's range
- $72.94 – $74.18
- Volume
- 2,725,830
- Average volume (20 days)
- 3,194,682
- Index membership
- S&P 500, Russell 1000, Russell 3000
- Beta (5 years)
- 0.34
- 52-week range
- $62.54 – $78.81
- RSI (14 days)
- 66.9
- Volatility (1 year)
- 17.4%
- Relative volume
- 0.78×
- WACC
- 6.4%
On 1 of our idea list: Dividend growers
Index membership is inferred from the holdings of funds that track each index (VOO, IVV, SPYM, IWB, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2009, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.
| Period | LNT | S&P 500 | Difference | LNT per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +10.8% | -2.7% | +13.5 pts | ||
| 3 months | +4.8% | -1.7% | +6.5 pts | ||
| Year to date | +15.9% | +11.9% | +4.0 pts | ||
| 1 year | +10.6% | +12.0% | −1.4 pts | ||
| 3 years | +66.1% | +78.2% | −12.1 pts | +18.4% | +21.2% |
| 5 years | +55.6% | +73.2% | −17.6 pts | +9.2% | +11.6% |
| 10 years | +182.8% | +309.6% | −126.9 pts | +11.0% | +15.1% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases Alliant Energy filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- News
- Results
- Results
- Results
- News
About Alliant Energy
Electric & Other Services Combined
Alliant Energy operates as a regulated public utility holding company delivering electric and natural gas utility services in the Midwestern United States. The company conducts its utility operations through two primary subsidiaries: Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). Together, these segments generate, distribute, and transport electricity and natural gas. Beyond its core regulated utility services, the enterprise maintains non-utility holdings through Alliant Energy Finance (AEF), which manages investments in electric transmission, wind energy, supply chain and freight logistics, and development-ready industrial sites. Its customers include retail electric and natural gas users across residential and commercial sectors, wholesale clients like municipalities and rural electric cooperatives, and industrial customers spanning agriculture, manufacturing, chemical production, and data centers.
Company profile, executives and historyAlliant Energy stock: common questions
What is Alliant Energy's stock price?
LNT closed at $73.05 on Nov 12, 2026, down 0.77% on the day. Over the past 52 weeks it traded between $62.54 and $78.81.
What is Alliant Energy's market cap?
Alliant Energy was worth $18.95B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.
What is LNT's P/E ratio?
LNT trades at 20.3 times earnings, based on diluted earnings per share of $3.59 over the twelve months to Sep 30, 2026.
How much revenue does Alliant Energy make?
Alliant Energy reported revenue of $4.50B for the twelve months to Sep 30, 2026, up 5.4% from a year earlier.
Does Alliant Energy pay a dividend?
Yes. Alliant Energy paid $2.03 per share over the last twelve months, a yield of 2.78% at the latest price, and has raised its annual dividend 17 years in a row.
When does Alliant Energy report earnings next?
Alliant Energy is expected to report Q4 FY2026 results on Feb 19, 2027, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has LNT stock performed over the past year?
Including dividends, LNT returned +10.6% over the past year, against +12.0% for the S&P 500.
How many LNT shares are sold short?
29M shares were sold short at the latest FINRA report, 11.04% of the float, or 9.3 days of average trading volume.
Who are Alliant Energy's competitors?
Companies most similar to Alliant Energy by business, industry and size include AEE, WEC, EVRG, XEL, NI.
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