Lennox International (LII)

Industrials · Building Products & Equipment · S&P 500
$365.63 +1.24% on the day Market cap $12.1B 52-week range $350.22 to $587.27 Prices as of Oct 7, 2026

What the price implies

A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.

Free cash flow growth the price needs
4% a year for 10 years

At a market value of $12.1B, Lennox International's free cash flow of $639M (fiscal 2025) would need to grow about 4% a year for the stock to be worth today's price. That is slower than the company has grown its free cash flow over the last 9 years.

Assumes a 9% discount rate and 3% growth after year 10, on free cash flow (operating cash flow minus capital spending) from Lennox International's SEC filings. Change any assumption, or model revenue and margins instead, in the Modeling tab, or try your own numbers in the reverse DCF calculator.

Implied by the price4.3% a year
Free cash flow, last 9 years9.2% a year
Revenue, same period4.0% a year
Price to free cash flow18.9x

Fundamental grade

C

Five factors scored 1 to 9 from LII's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.

Valuation6
Profitability7
Growth2
Financial health3
Cash efficiency7

Key numbers

P/E (trailing)16.2x
P/E (forward)15.5x
Price / free cash flow18.9x
EV / EBITDA13.4x
Price / sales2.30x
Price / book10.8x
Revenue growth+5.8%
Operating margin19.7%
Net margin15.1%
Return on equity65.4%
Dividend yield1.4%
Debt / equity2.54x

Results from SEC filings

Fiscal years, from Lennox International's 10-K filings. The deep dive has 15+ years, quarters and every line.

Fiscal year20212022202320242025
Revenue$4.2B$4.7B$5.0B$5.3B$5.2B
Net income$464M$497M$591M$811M$806M
Free cash flow$409M$201M$486M$782M$639M
EPS (diluted)$12.39$13.88$16.58$22.66$22.79
Operating margin14.1%13.9%15.9%19.5%20.0%

Where the revenue comes from

Revenue by segments, fiscal 2025.

Residential Heating and Cooling$3.3B64%
Commercial Heating and Cooling$1.9B36%

Superinvestors who own LII

From each investor's latest 13F filing (what a 13F shows). 3 of the investors we track hold it.

InvestorLast quarterValue% of portfolioQuarter
Andreas Halvorsen
Viking Global Investors
Added $912M2.6%Q2 2026
Cliff Asness
AQR Capital Management
Added $25M0.01%Q2 2026
Joel Greenblatt
Gotham Asset Management
Added $17M0.04%Q2 2026

Insider buying

Open-market purchases by Lennox International's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.

No open-market insider purchases of LII in the last 12 months. Most insider activity is selling and option exercises, which aren't shown here.

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In the full deep dive

DCF fair value per share
Yearly return (IRR) at today's price
Growth implied by revenue and margins
15+ years of statements and quarters

Questions

What growth does Lennox International's stock price imply?

At a market value of $12.1B, Lennox International would need its free cash flow to grow about 4% a year for 10 years (discounted at 9%, 3% growth after that) to be worth today's price. Over the last 9 years its free cash flow grew 9% a year.

Are Lennox International insiders buying the stock?

No open-market insider purchases of LII in the last 12 months, according to SEC Form 4 filings.

Which superinvestors own Lennox International?

3 of the superinvestors Investingly tracks hold LII in their latest 13F, including Andreas Halvorsen, Cliff Asness, Joel Greenblatt.

Prices and ratios as of Oct 7, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.