What is the 13F Pro Quality Score for LII?

13F Pro ranks LENNOX INTERNATIONAL INC (LII) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View LII's current score at https://13fpro.ai/research/LII (free sign-up required for the full ranking).

Where does 13F Pro source LII data?

All LENNOX INTERNATIONAL INC fundamentals and ownership data come directly from SEC EDGAR. LENNOX INTERNATIONAL INC files with the SEC under CIK 1069202. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is LII in?

LENNOX INTERNATIONAL INC (LII) is classified in the Industrials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/industrials.

How often is LII research updated on 13F Pro?

LII's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

LENNOX INTERNATIONAL INC(LII)Stock Analysis

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13F Pro Quality Score

64.8/100

Rank #612 of 2,879 stocksTOP 25%

View Industrials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

42.0/100

Profitability

78.2/100

Balance Sheet

96.2/100

Earnings Quality

62.9/100

Free Cash Flow

48.8/100

Institutional Flow

10.0/100

Revenue Scale

78.4/100

Dilution Risk

72.4/100

LII Stock Analysis & AI Quality Score

AI stock analysis and institutional research for LENNOX INTERNATIONAL INC (LII), a Industrials sector company. 13F Pro's AI-powered ranking engine scores LII at 64.8/100 on a 32-signal composite quality model, placing it at rank #612 of 2,879 stocks — the top 25% of the AI-ranked universe. LII scores in the top quartile across balance sheet strength (96.2), revenue scale (78.4), profitability (78.2). Areas of concern include institutional flow (10.0), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), LENNOX INTERNATIONAL INC reports quarterly revenue of $1.1B, net income of $117.2M, an operating margin of 14.4%. Top institutional holders of LII by reported 13-F value include BlackRock,, Capital International Investors, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. LII trades on the NYSE exchange and files with the SEC under CIK 1069202. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate LII daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for LENNOX INTERNATIONAL INC directly from SEC EDGAR. LENNOX INTERNATIONAL INC's 13F Pro composite quality score has ranged between 60 and 75 since 2021, currently 64.8 — a stable long-term trajectory across 30 quarterly and live scoring snapshots.

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Fun facts about LENNOX INTERNATIONAL INC

Quirks, history, and lore behind LII — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. industrial manufacturer · mid-cap · listed on NYSE · headquartered in Texas.
2
The Numbers
Annual revenue roughly $5 billion, with operating margins that make peers jealous — because when the weather gets extreme, everyone needs what it sells.
3
The History
Founded in 1895, it has been keeping Americans comfortable for well over a century — originally built around heating equipment before cooling became equally important.
4
The Secret
It sells through a vast network of dealer and distributor partners, meaning most homeowners never know this company's name — only the brand on the unit sitting outside their house.
5
The Lore
It operates across residential, commercial, and refrigeration segments — so it's quietly responsible for keeping your home warm, your office cool, and your grocery store's frozen food aisle from becoming a puddle.
6
The Giveaway
The name sounds like a rock legend, but this company's real hits are furnaces, heat pumps, and air conditioners — sold under a brand that rhymes with the man who invented the electric light bulb's first name.

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Revenue

Q1 2026

$1.1B

Net Income

Q1 2026

$117.2M

Free Cash Flow

Q1 2026

$-39.4M

Operating Margin

Q1 2026

14.4%

D/E Ratio

Q1 2026

0.96

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

-2.7% YoY

$5.20BFY 2025

FY22 $4.72BFY23 $4.98BFY24 $5.34BFY25 $5.20B

Net Income

-0.7% YoY

$805.8MFY 2025

FY22 $497.1MFY23 $591.2MFY24 $811.1MFY25 $805.8M

Operating Income

+0.1% YoY

$1.04BFY 2025

FY22 $656.2MFY23 $791.5MFY24 $1.04BFY25 $1.04B

EPS (Diluted)

+0.6% YoY

$22.79FY 2025

FY22 $13.88FY23 $16.58FY24 $22.66FY25 $22.79

Total Assets

+17.6% YoY

$4.08BFY 2025

FY22 $2.57BFY23 $2.80BFY24 $3.47BFY25 $4.08B

Total Debt

-19.2% YoY

$1.18BFY 2025

FY22 $2.24BFY23 $1.17BFY24 $1.46BFY25 $1.18B

Op. Cash Flow

-19.9% YoY

$757.6MFY 2025

FY22 $302.3MFY23 $736.2MFY24 $945.7MFY25 $757.6M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$5.20B -2.7%	$5.34B +7.2%	$4.98B +5.6%	$4.72B +12.5%	$4.19B +15.4%	$3.63B
Net Income	$805.8M -0.7%	$811.1M +37.2%	$591.2M +18.9%	$497.1M +7.1%	$464.0M +30.2%	$356.3M
Operating Income	$1.04B +0.1%	$1.04B +31.4%	$791.5M +20.6%	$656.2M +11.2%	$590.3M +23.4%	$478.5M
EPS (Diluted)	$22.79 +0.6%	$22.66 +36.7%	$16.58 +19.5%	$13.88 +12.0%	$12.39 +34.1%	$9.24
Total Assets	$4.08B +17.6%	$3.47B +24.1%	$2.80B +9.0%	$2.57B +18.2%	$2.17B +6.9%	$2.03B
Total Debt	$1.18B -19.2%	$1.46B +25.3%	$1.17B -47.8%	$2.24B +79.0%	$1.25B +26.1%	$990.5M
Operating Cash Flow	$757.6M -19.9%	$945.7M +28.5%	$736.2M +143.5%	$302.3M -41.4%	$515.5M -15.8%	$612.4M

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Available Research

13F Pro tracks comprehensive data for LENNOX INTERNATIONAL INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of LII

BlackRock, Inc.
$1.4B2,971,646 sh
Capital International Investors
$1.3B2,862,536 sh
VANGUARD CAPITAL MANAGEMENT LLC
$953.5M2,054,331 sh
VIKING GLOBAL INVESTORS LP
$729.8M1,572,419 sh
STATE STREET CORP
$669.0M1,437,417 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$664.9M1,432,631 sh
MORGAN STANLEY
$505.5M1,089,220 sh
GEODE CAPITAL MANAGEMENT, LLC
$416.3M900,176 sh
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
$406.2M875,168 sh
CITADEL ADVISORS LLC
$299.2M644,634 sh

Fund	Value	Shares
BlackRock, Inc.	$1.4B	2,971,646
Capital International Investors	$1.3B	2,862,536
VANGUARD CAPITAL MANAGEMENT LLC	$953.5M	2,054,331
VIKING GLOBAL INVESTORS LP	$729.8M	1,572,419
STATE STREET CORP	$669.0M	1,437,417
VANGUARD PORTFOLIO MANAGEMENT LLC	$664.9M	1,432,631
MORGAN STANLEY	$505.5M	1,089,220
GEODE CAPITAL MANAGEMENT, LLC	$416.3M	900,176
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	$406.2M	875,168
CITADEL ADVISORS LLC	$299.2M	644,634

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Is LII a good stock to buy?

13F Pro's AI-powered analysis of LENNOX INTERNATIONAL INC (LII) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Industrials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for LII are available on the LII stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own LII?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling LII. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of LENNOX INTERNATIONAL INC's investment landscape.