Question 1

What is Lennox International's P/E ratio?

Accepted Answer

Lennox International (LII) P/E ratio is 23.8× as of July 22, 2026. The ratio is calculated by dividing market capitalisation by trailing twelve-month earnings (net income), using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/E ratio calculated?

Accepted Answer

P/E = Share Price ÷ Trailing Twelve-Month (TTM) Diluted EPS, or equivalently Market Capitalisation ÷ TTM Net Income. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/E ratio?

Accepted Answer

The price-to-earnings (P/E) ratio, also called the earnings multiple, measures how much investors pay per dollar of a company's trailing twelve-month (TTM) earnings. It is calculated as share price ÷ TTM diluted EPS (equivalent to market capitalisation ÷ TTM net income). A higher P/E implies the market is pricing in stronger future earnings growth or lower risk; a lower P/E can signal slower expected growth, higher risk, or potential undervaluation.

Question 4

What is a good P/E ratio for Lennox International?

Accepted Answer

There is no universal "good" P/E. As a rule of thumb, the S&P 500 has historically averaged a P/E in the mid-to-high teens; mature, slow-growth businesses commonly trade in the 10–18× range, while high-growth or asset-light companies often trade at 25–50×+. What matters is the comparison to sector peers and to the company's own historical range. For Lennox International specifically, the relevant sector benchmark is the current sector median of 27.8×.

Question 5

Is Lennox International's P/E ratio high or low?

Accepted Answer

Lennox International's P/E ratio of 23.8× is above its own 5-year average of 22.9× and below the sector median of 27.8×. That places the current reading at the 53th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is Lennox International's historical P/E ratio range?

Accepted Answer

In the available daily series, Lennox International (LII) P/E ratio has ranged from a low of 9.3× in 2006 to a high of 42.8× in 2009. The 5-year average is 22.9× and the 5-year median is 23.2×.

Question 7

What was Lennox International's P/E ratio in 2025?

Accepted Answer

Lennox International (LII) P/E ratio at the end of 2025 was 21.6×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month earnings figure available at that date.

Question 8

Why does Lennox International's P/E ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (earnings). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$16.9B	$786M	21.6×	-5.5×	Dec 31, 2025
2024	$21.8B	$807M	27.0×	+0.0×	Dec 31, 2024
2023	$15.9B	$590M	27.0×	+10.0×	Dec 31, 2023
2022	$8.47B	$497M	17.0×	-8.5×	Dec 31, 2022
2021	$11.9B	$464M	25.6×	-3.9×	Dec 31, 2021
2020	$10.5B	$356M	29.5×	+6.4×	Dec 31, 2020
2019	$9.42B	$409M	23.0×	-1.3×	Dec 31, 2019
2018	$8.75B	$359M	24.4×	-4.1×	Dec 31, 2018
2017	$8.71B	$306M	28.5×	+4.8×	Dec 31, 2017
2016	$6.57B	$278M	23.7×	-6.4×	Dec 31, 2016
2015	$5.61B	$187M	30.1×	+9.0×	Dec 31, 2015
2014	$4.33B	$206M	21.0×	-3.3×	Dec 31, 2014
2013	$4.18B	$172M	24.4×	-5.0×	Dec 31, 2013
2012	$2.64B	$89.9M	29.4×	+9.8×	Dec 31, 2012
2011	$1.73B	$88.3M	19.6×	-2.2×	Dec 31, 2011
2010	$2.53B	$116M	21.7×	-21.1×	Dec 31, 2010
2009	$2.18B	$51M	42.8×	+28.3×	Dec 31, 2009
2008	$1.78B	$123M	14.5×	-0.3×	Dec 31, 2008
2007	$2.5B	$169M	14.8×	+2.3×	Dec 31, 2007
2006	$2.07B	$166M	12.4×	-0.8×	Dec 31, 2006
2005	$1.99B	$151M	13.2×	—	Dec 31, 2005
2004	$1.3B	-$96.6M	—	—	Dec 31, 2004
2003	$825M	$84.5M	9.8×	—	Dec 31, 2003
2002	$781M	-$190M	—	—	Dec 31, 2002


General Dynamics (GD)	21.9×
Pentair (PNR)	21.1×
Copart (CPRT)	20.4×
Union Pacific (UNP)	19.9×
Allegion (ALLE)	19.7×
Alamo Group (ALG)	19.6×
Andersons (ANDE)	19.0×
Carlisle Companies (CSL)	18.8×
Snap-on (SNA)	18.5×
Brady (BRC)	18.5×
Canadian National Railway (CNI)	18.4×
FedEx (FDX)	18.4×
Pool (POOL)	18.1×
McGrath RentCorp (MGRC)	17.5×
Honeywell International (HON)	17.5×
A. O. Smith (AOS)	17.4×
Textron (TXT)	16.6×
Northrop Grumman (NOC)	16.1×
United Parcel Service (UPS)	15.9×
Delta Air Lines (DAL)	15.5×
ABM Industries (ABM)	15.2×
Masco (MAS)	14.6×
Upwork (UPWK)	12.9×
United Airlines Holdings (UAL)	12.7×
AGCO (AGCO)	10.9×

P/E Ratio for Lennox International (LII) 2003-2026

P/E Ratio daily chart for Lennox International (LII)

Historical P/E Ratio for Lennox International (LII) from 2002 to 2025

About P/E Ratio at Lennox International (LII)

Lennox International P/E Ratio by Year

Lennox International P/E Ratio 2025: 21.6×

Lennox International P/E Ratio 2024: 27.0×

Lennox International P/E Ratio 2023: 27.0×

Lennox International P/E Ratio 2022: 17.0×

Lennox International P/E Ratio 2021: 25.6×

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

Lennox International (LII) Key Financials