Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Lennox InternationalMIL:1LII 93 Days Inventory is 136.66 as of Mar. 2026, which is 100% above its 10-year median of 68.19. GuruFocus rates MIL:1LII with a GF Score™ of 93/100 and a GF Value™ of €501.24. The stock has 3 warning signs investors should review. Among 1,489 Construction companies, Lennox International ranks worse than 70.72% on this metric.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Lennox International's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.67.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Lennox International's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 1.03.
Lennox International (MIL:1LII) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Lennox International's Inventory Turnover for the
three
months ended in Mar. 2026 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Lennox International's Inventory to Revenue for the
three
months ended in Mar. 2026 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Lennox International Days Inventory Related Terms
Lennox International Days Inventory Historical Data
* Premium members only.
The historical data trend for Lennox International's Days Inventory can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
MIL:1LII vs MAIR, MAS, CSL: Days Inventory Comparison
For the Building Products & Equipment subindustry, Lennox International's Days Inventory, along with its competitors' market caps and Days Inventory data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Lennox International Days Inventory vs Construction Industry
For the Construction industry and Industrials sector, Lennox International's Days Inventory distribution charts can be found below:
* The bar in red indicates where Lennox International's Days Inventory falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Lennox International (MIL:1LII) has a Days Inventory of 136.66 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Lennox International and its competitors. This is 100% above median its historical median of 68.19. Over the past decade, Lennox International's Days Inventory has ranged from 57.70 to 109.66. According to the industry distribution chart, Lennox International ranks #1053 out of 1489 companies in the Construction industry, placing it in the top 70.7%.
Is Lennox International's Days Inventory too high?
Lennox International's current Days Inventory of 136.66 is 100% above median its 10-year median of 68.19. Over the past 10 years, this metric has ranged from a low of 57.70 to a high of 109.66. The Construction industry median Days Inventory is 49.78. Lennox International's value of 136.66 is 174.5% above this industry median. Based on the distribution chart, Lennox International ranks #1053 out of 1489 companies in the Construction industry, which is below the industry midpoint. Overall, Lennox International has a GF Score™ of 93/100, reflecting its overall financial health beyond just this single metric.
How does Lennox International's Days Inventory compare to MAIR and MAS?
According to the Construction industry distribution chart, Lennox International ranks #1053 out of 1489 companies for Days Inventory. This places Lennox International in the lower half of its industry. The industry median Days Inventory is 49.78. Lennox International's value of 136.66 is 174.5% above this benchmark. Historically, Lennox International's own Days Inventory has ranged from 57.70 to 109.66 over the past decade. While the company's 10-year median is 68.19 vs. the industry median of 49.78, Lennox International has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for a Construction company?
The median Days Inventory among Construction companies is 49.78, based on 1,489 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lennox International's current Days Inventory of 136.66 is 174.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Lennox International and its competitors. For the Construction industry, the median Days Inventory is 49.78 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lennox International's current Days Inventory is 136.66, which is 100% above median its own 10-year median of 68.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lennox International stock overvalued right now?
Lennox International (MIL:1LII) has a current Days Inventory of 136.66. The stock's GF Value™ is €501.24, compared to a current price of €493.20 — trading 1.6% below its estimated fair value. The current Days Inventory is 136.66, which is 100% above median its 10-year median of 68.19 and 174.5% above the Construction industry median of 49.78. Lennox International's overall GF Score™ is 93/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Lennox International (MIL:1LII), the current Days Inventory is 136.66 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Lennox International (MIL:1LII) Overvalued in 2026?
Based on GuruFocus' analysis, Lennox International stock appears to be undervalued.
The current stock price of €493.20 is trading 1.6% below its estimated GF Value™ of €501.24.
Key valuation signals for MIL:1LII:
Days Inventory: 136.66 (100% above median its 10-year median of 68.19)
GF Value™: €501.24 vs. price of €493.20 (1.6% below fair value)
Industry Position: 174.5% above the Construction median (#1053 of 1489)
No single metric tells the full story. See the MIL:1LII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lennox International manufacturers and distributes heating, ventilating, air conditioning, and refrigeration products for the North American replacement (75% of sales) and new construction (25% of sales) markets. Residential HVAC (home comfort solutions) accounts for 67% of sales and commercial HVAC (building climate solutions) accounts for the remaining 33% of sales. Lennox's commercial exposure is what its peers refer to as residential and light commercial, and lacks the scale and complexity of what is referred to as an applied solution. The company goes to market with multiple brands, but Lennox is its flagship HVAC brand.
93GF Score
Get the complete analysis for MIL:1LII
Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
MIL:1LII has been successfully added to your 
