LII Historical PE Ratio Notes

— Lennox International Inc. (LII) is a leading provider of climate control solutions, specializing in the design, manufacturing, and marketing of heating, ventilation, air conditioning, & refrigeration (HVACR) products for residential & commercial markets. The company's core business is providing high-efficiency systems under well-known brands, serving both new construction and the important replacement/retrofit market. Because HVACR solutions are essential and often non-deferrable purchases, LII enjoys relatively stable demand across economic cycles, though it can be influenced by residential housing trends and broader economic conditions. When analyzing Lennox's historical price-to-earnings (PE) ratio, investors should consider how market sentiment has historically assessed its earnings stability, cyclical exposure, & ability to pass on costs through pricing. Generally, the market assigns a higher PE ratio to companies with consistent revenue streams, strong brand recognition, and resilience to downturns—all advantages for LII, given its aftermarket revenue base and established position in the industry. Past fluctuations in its PE ratio often reflect changing expectations for housing demand, raw material costs, competition, and the company's success in innovating energy-efficient systems, which can impact both earnings and investor confidence over time.

On this page we presented the Lennox Intl Historical PE Ratio information for Lennox Intl' stock. The average LII historical PE based on using the annualized quarterly earnings result at each measurement period (for the "E" in the PE calculation; and the closing price on earnings date as the "P") is 26.3. Meanwhile, using the trailing twelve month (TTM) quarterly earnings result as our method of calculation the "E" value at each measurement period, the average LII historical PE based on this TTM earnings result method is 23.4. Note: any PE calculations involving negative earnings were discarded as not meaningful.

Let's now compare this LII historical PE result, against the recent PE: when this page was posted on 9/4/2026, the most recent closing price for LII had been 390.53, and the most recent quarterly earnings result, annualized, was 30.88. Meanwhile, the most recent TTM earnings summed to 22.5. From these numbers, we calculate the recent LII PE on 9/4/2026 based on annualized quarterly EPS was 12.6. Based on LII's history, that recent PE is low relative to the historical average, with the recent PE 52.1% lower than the historical average PE across our data set for Lennox Intl. Looking at the recent LII PE on 9/4/2026 based on TTM EPS, we calculate the ratio at 17.4. Based on LII's history, that recent PE is low relative to the historical average, with the recent PE 25.6% lower than the average PE across our Lennox Intl data set with TTM EPS used in the calculation at each period.

Another interesting LII historical PE Ratio calculation we look at is to take the median earnings per share of the last four quarters for LII, and then annualize the resulting value... with that annualized number then being used in the PE calculation. To walk through this math for LII, we start with the past four EPS numbers and we first sort them from lowest to highest: 3.35, 4.45, 6.98, and 7.72. We then toss out the highest and lowest result, and then take the average of those two middle numbers — 4.45 and 6.98 — which gives us the median of 5.71. Basically the way to think about this 5.71 number is this: for the trailing four earnings reports, 5.71 marks the "middle ground" number where LII has reported a value higher than 5.71 half the time, and has reported a value lower than 5.71 half the time. Annualizing that median value then gets us to 22.84/share, which we use as the denominator in our next PE calculation. With 390.53 as the numerator (as of 9/4/2026), the calculation is then 390.53 / 22.84 = 17.1 as the LII PE ratio as of 9/4/2026, based on that annualized median value we calculated.

For self directed investors doing their due diligence on LII or any other given stock, valuation analysis for LII can greatly benefit from studying the past earnings and resulting PE calculations. This exercise can help inform an analysis as to whether the past earnings trajectory and current versus historical PE ratios justify the current stock value.

That's why we bring you HistoricalPERatio.com to make it easy for investors to investigate Lennox Intl PE history or the past PE information for any stock in our coverage universe. And in your continued research we hope you will be sure to check out the further links included for earnings surprises history (beat/miss data) as well as next earnings dates for LII. Thanks for visiting, and the next time you need to research LII Historical PE Ratio or the ratio for another stock, we hope you'll think of our site, as your go-to historical PE ratio research resource of choice.