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XStocksXray
Research report · 16 October 2026

Lennox International Inc (LII)

Industrials · Building Products · US stock · price as of 16 Oct 2026

Key indicators

Price$357.73
52-week range$340.32 – $585.05
Market cap$12.5B
P/E (trailing)15.9×
EV / EBITDA12.1×
Free-cash-flow yield5.3%
Dividend yield1.5%
Revenue (last 12 months)$5.3B
Revenue growth (3y a year)3.3%
Operating margin19.7%
Return on invested capital31.2%
Net debt / EBITDA1.3×

Fair value

Blended fair value$668.56 range $615 – $733
Versus priceUndervalued+87% to fair value
Peer multiples$603.49
Fundamentals-adjusted multiple$619.86
10-year DCF (market-scaled)$782.32
Earnings power value (floor, not blended)$182.31
Model uncertaintyMedium

X-Ray Score

62/ 100 · High confidence · ahead of 84% of sector peers
Valuation86
Growth50
Profitability58
Financial health51
Dividends58

Five-year price chart navy: price · brown: 200-day average · blue band: fair value range

143299455610766Fair value $6692021-102023-012024-042025-072026-10

Executive summary

Lennox International designs and manufactures heating, ventilation, air conditioning and refrigeration equipment for homes and commercial buildings. Its products include furnaces, heat pumps, air conditioners and commercial rooftop units, sold mainly through independent dealers, distributors and its own stores. Revenue comes from equipment sales and replacement parts, and demand is influenced by housing activity, weather, building codes and replacement cycles for existing systems.

Revenue over the last twelve months was $5.3 billion, with growth of 3.3% a year over three years. The operating margin stands at 19.7%. The return on invested capital is shown as 31%. Net debt to EBITDA is 1.3 times. Shareholders receive a dividend yielding 1.5%. These numbers describe past results and current financial position, and they are shown for reference only.

StocksXray gives Lennox International Inc an X-Ray Score of 62 out of 100 (high confidence), ahead of 84% of the S&P 500 stocks in its sector. Its strongest lens is valuation (86) and its weakest is growth (50).

Our fair value blend is $668.56 (range $614.71 to $732.60). At $357.73 the stock trades 46% below that blend, so the label is "Undervalued" with medium model uncertainty. Fair value is a range, not a price target.

stocksxray.com · page 1
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Lennox International Inc (LII)

Valuation history multiples at each fiscal year-end price; the last column uses today's price and the last twelve months

FY2021FY2022FY2023FY2024FY2025Now
Price$306.23$229.84$435.66$598.02$481.18$357.73
Market cap$11.5B$8.2B$15.6B$21.4B$17.0B$12.5B
P/E24.7×16.6×26.3×26.4×21.1×15.9×
EV / revenue3.0×2.1×3.4×4.1×3.5×2.7×
EV / EBITDA19.1×13.2×19.1×19.5×15.9×12.1×
Price / free cash flow28.1×40.9×32.0×27.4×26.7×19.0×
Free-cash-flow yield3.6%2.4%3.1%3.7%3.8%5.3%
Price / book––39.6×22.3×14.6×10.3×
Dividend yield1.15%1.78%1.00%0.76%1.05%1.49%

Fundamentals checklist ● 10 Good · ● 4 Average · ● 2 Bad · each check graded against the sector

Cash quality

Earnings backed by cash−0.4%Bad
Free-cash-flow yield5.3%Good

Risk models

Altman Z score6.9×Good
Piotroski F-Score5 of 9Bad

Growth

EPS growth (3y)18.0%Good
Free-cash-flow growth (3y)47.0%Good
Revenue growth (3y)3.3%Average
Growth consistency70%Average

Balance sheet

Current ratio1.6×Good
Net debt / EBITDA1.3×Average
Interest cover20.8×Average

Valuation

Fair value vs price1.9×Good
EBIT / EV yield7.4%Good

Profitability

Return on invested capital31.2%Good
Operating margin19.7%Good
Gross profitability40.7%Good
stocksxray.com · page 2
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Lennox International Inc (LII)

Financials US$ millions, from SEC filings; last column is the last twelve months

Income statementFY21FY22FY23FY24FY25LTM
Revenue4,1944,7184,9825,3415,1955,258
Gross profit1,1881,2851,5491,7781,7351,745
Operating income5906567921,0401,0421,037
Net income464497591811806794
Diluted EPS ($)12.3913.8816.5822.6622.7922.49
Free cash flow409201486782639661
Gross margin28.3%27.2%31.1%33.3%33.4%33.2%
Operating margin14.1%13.9%15.9%19.5%20.0%19.7%
Net margin11.1%10.5%11.9%15.2%15.5%15.1%
Balance sheetFY21FY22FY23FY24FY25LTM
Total assets2,1722,5682,9413,6204,0824,293
Cash3153614153448
Total debt1,2381,5251,3051,1481,3881,523
Equity-269-2033939621,1631,214
Dividend per share ($)3.534.104.364.555.05–

Revenue and net income US$ billions: navy revenue, teal net income

FY21FY22FY23FY24FY25

Margins blue gross, teal operating, brown net

0%11%22%33%FY21FY22FY23FY24FY25

Latest quarters

Dec 2024Mar 2025Jun 2025Sep 2025Dec 2025Mar 2026
Revenue ($M)1,3451,0731,5011,4271,1951,135
Growth vs a year earlier+16.5%+2.4%+3.4%−4.8%−11.2%+5.8%
Net income ($M)202130274260143117
Diluted EPS ($)–3.637.717.384.073.35
stocksxray.com · page 3
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Lennox International Inc (LII)

Peers in Building Products

CompanyX-Ray
LII · Lennox International Inc62
AOS · Smith A O Corp68
ALLE · Allegion plc62
MAS · Masco Corp58
TT · Trane Technologies plc58

Market Compass outlook for Industrials: Neutral (45/100). It blends regime history, macro sensitivity, momentum and valuation.

Returns

1 week+0.4%
1 month+0.0%
3 months−32.7%
6 months−26.1%
1 year−31.3%
3 years−5.6%
5 years+28.8%

Technical summary

DailyBearish3 bullish · 4 neutral · 9 bearish
WeeklyStrongly bearish0 bullish · 1 neutral · 11 bearish
MonthlyStrongly bearish0 bullish · 1 neutral · 7 bearish
50-day / 200-day average$379.29 / $476.74
52-week low / high$340.32 / $585.05
Classic pivot, support and resistanceS2 347.98 · S1 352.86 · P – · R1 362.89 · R2 368.04

Recent dividends

Ex-dividend dateAmount per share
30 Sep 2026$1.3600
30 Jun 2026$1.3600
31 Mar 2026$1.3000
31 Dec 2025$1.3000
30 Sep 2025$1.3000
30 Jun 2025$1.3000
stocksxray.com · page 4
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Lennox International Inc (LII)

Strengths

  • Return on invested capital of 31.2% is ahead of 85% of its sector peers.
  • Operating margin of 19.7% is ahead of 67% of its sector peers.
  • Free-cash-flow yield of 5.3% is ahead of 74% of its sector peers.
  • Has raised its dividend for 7 years in a row.

Risks and weak spots

  • Earnings backed by cash is weak against Industrials peers (−0.4%).
  • Piotroski F-Score is weak against Industrials peers (5 of 9).

Latest SEC filings

DateFormItems
18 Sep 20268-K5.02,9.01
29 Jul 202610-Q
29 Jul 20268-K2.02,9.01
28 May 20268-K5.02,5.07
29 Apr 202610-Q
29 Apr 20268-K2.02,9.01
8 Apr 2026DEF 14A
17 Feb 202610-K

How to read this report

Every number comes from SEC filings, end-of-day prices and the StocksXray models described on the methodology page. The X-Ray Score ranks each metric against the company's own sector. Fair value blends three models and carries a typical error of about 40%, so treat it as a range. Analyst ratings, price targets and earnings-call summaries are not part of this report. Educational research, not financial advice; read the disclaimer.

stocksxray.com · page 5 · generated 19 Oct 2026