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TransDigm GroupMEX:TDG 91 Days Inventory is 210.65 as of Mar. 2026, which is 10% above its 10-year median of 190.99. GuruFocus rates MEX:TDG with a GF Score™ of 91/100 and a GF Value™ of MXN28,253.89 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 329 Aerospace & Defense companies, TransDigm Group ranks worse than 69.3% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). TransDigm Group's Average Total Inventories for the
three
months ended in Mar. 2026 was MXN43,003 Mil. TransDigm Group's Cost of Goods Sold for the
three
months ended in Mar. 2026 was MXN18,628 Mil.
Hence, TransDigm Group's Days Inventory for the
three
months ended in Mar. 2026 was 210.65.
The historical rank and industry rank for TransDigm Group's Days Inventory or its related term are showing as below:
MEX:TDG'
s Days Inventory Range Over the Past 10 Years
Min: 154.1 Med: 190.99 Max: 208.48
Current: 208.48
During the past 13 years, TransDigm Group's highest Days Inventory was 208.48. The lowest was 154.10. And the median was 190.99.
MEX:TDG's Days Inventory is ranked worse than 69.3% of 329
companies
in the Aerospace & Defense industry
Industry Median: 139.44
vs MEX:TDG: 208.48
TransDigm Group's Days Inventory
increased
from Mar. 2025 (207.16) to Mar. 2026 (210.65).
It might indicate that TransDigm Group's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
TransDigm Group's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.43.
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.
TransDigm Group's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.94.
TransDigm Group (MEX:TDG) 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.
TransDigm Group'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.
TransDigm Group'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.
TransDigm Group Days Inventory Related Terms
TransDigm Group Days Inventory Historical Data
* Premium members only.
The historical data trend for TransDigm Group'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.
MEX:TDG vs HONA, NOC, LHX: Days Inventory Comparison
For the Aerospace & Defense subindustry, TransDigm Group'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.
TransDigm Group Days Inventory vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, TransDigm Group's Days Inventory distribution charts can be found below:
* The bar in red indicates where TransDigm Group'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.
TransDigm Group (MEX:TDG) has a Days Inventory of 210.65 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on TransDigm Group and its competitors. This is 10% above median its historical median of 190.99. Over the past decade, TransDigm Group's Days Inventory has ranged from 154.10 to 208.48. According to the industry distribution chart, TransDigm Group ranks #228 out of 329 companies in the Aerospace & Defense industry, placing it in the top 69.3%.
Is TransDigm Group's Days Inventory too high?
TransDigm Group's current Days Inventory of 210.65 is 10% above median its 10-year median of 190.99. Over the past 10 years, this metric has ranged from a low of 154.10 to a high of 208.48. The Aerospace & Defense industry median Days Inventory is 139.44. TransDigm Group's value of 210.65 is 51.1% above this industry median. Based on the distribution chart, TransDigm Group ranks #228 out of 329 companies in the Aerospace & Defense industry, which is below the industry midpoint. Overall, TransDigm Group has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does TransDigm Group's Days Inventory compare to HONA and NOC?
According to the Aerospace & Defense industry distribution chart, TransDigm Group ranks #228 out of 329 companies for Days Inventory. This places TransDigm Group in the lower half of its industry. The industry median Days Inventory is 139.44. TransDigm Group's value of 210.65 is 51.1% above this benchmark. Historically, TransDigm Group's own Days Inventory has ranged from 154.10 to 208.48 over the past decade. While the company's 10-year median is 190.99 vs. the industry median of 139.44, TransDigm Group 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 an Aerospace & Defense company?
The median Days Inventory among Aerospace & Defense companies is 139.44, based on 329 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. TransDigm Group's current Days Inventory of 210.65 is 51.1% 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 TransDigm Group and its competitors. For the Aerospace & Defense industry, the median Days Inventory is 139.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. TransDigm Group's current Days Inventory is 210.65, which is 10% above median its own 10-year median of 190.99. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TransDigm Group stock overvalued right now?
Based on GuruFocus' analysis, TransDigm Group (MEX:TDG) is currently considered Modestly Undervalued. The stock's GF Value™ is MXN28,253.89, compared to a current price of MXN22,000.00 — trading 22.1% below its estimated fair value. The current Days Inventory is 210.65, which is 10% above median its 10-year median of 190.99 and 51.1% above the Aerospace & Defense industry median of 139.44. TransDigm Group's overall GF Score™ is 91/100 with 5 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 TransDigm Group (MEX:TDG), the current Days Inventory is 210.65 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 TransDigm Group (MEX:TDG) Overvalued in 2026?
Based on GuruFocus' analysis, TransDigm Group stock appears to be undervalued.
The current stock price of MXN22,000.00 is trading 22.1% below its estimated GF Value™ of MXN28,253.89.
GuruFocus considers TransDigm Group to be Modestly Undervalued.
Key valuation signals for MEX:TDG:
Days Inventory: 210.65 (10% above median its 10-year median of 190.99)
GF Value™: MXN28,253.89 vs. price of MXN22,000.00 (22.1% below fair value)
Industry Position: 51.1% above the Aerospace & Defense median (#228 of 329)
No single metric tells the full story. See the MEX:TDG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
TransDigm manufactures and services a broad set of specialized parts for commercial and military aircraft. The firm organizes itself in three segments: power and control, airframes, and a small non-aviation segment, which serves mostly off-road vehicles and mining equipment. It operates as an acquisitive holding company that focuses on buying up smaller firms that make proprietary aerospace products with substantial aftermarket demand. TransDigm regularly employs financial leverage to amplify its operating results.
91GF Score
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