DPLMF (Diploma) Days Inventory: 136.34 (As of Mar. 2026) — 44% Above Median


DPLMF Diploma PLC DPLMF
96 GF Score
Price $92.29
GF Value $73.82
Valuation Modestly Overvalued
! 7 Warning Signs
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What is Diploma Days Inventory?

Diploma DPLMF 96 Days Inventory is 136.34 as of Mar. 2026, which is 44% above its 10-year median of 94.57. GuruFocus rates DPLMF with a GF Score™ of 96/100 and a GF Value™ of $73.82 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 153 Industrial Distribution companies, Diploma ranks worse than 69.93% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Diploma's Average Total Inventories for the six months ended in Mar. 2026 was $441 Mil. Diploma's Cost of Goods Sold for the six months ended in Mar. 2026 was $590 Mil. Hence, Diploma's Days Inventory for the six months ended in Mar. 2026 was 136.34.

The historical rank and industry rank for Diploma's Days Inventory or its related term are showing as below:

DPLMF' s Days Inventory Range Over the Past 10 Years
Min: 75.06   Med: 94.57   Max: 133.65
Current: 133.65

During the past 13 years, Diploma's highest Days Inventory was 133.65. The lowest was 75.06. And the median was 94.57.

DPLMF's Days Inventory is ranked worse than
69.93% of 153 companies
in the Industrial Distribution industry
Industry Median: 91.43 vs DPLMF: 133.65

Diploma's Days Inventory declined from Mar. 2025 (137.29) to Mar. 2026 (136.34).

Inventory Turnover measures how fast the company turns over its inventory within a year. Diploma's Inventory Turnover for the six months ended in Mar. 2026 was 1.34.

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. Diploma's Inventory-to-Revenue for the six months ended in Mar. 2026 was 0.39.


Diploma  (OTCPK:DPLMF) 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.

Diploma's Inventory Turnover for the six 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.

Diploma's Inventory to Revenue for the six 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.


Diploma Days Inventory Related Terms


Diploma Days Inventory Historical Data

* Premium members only.

The historical data trend for Diploma'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.

Diploma Days Inventory Chart

Diploma Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 85.82 81.31 119.72 123.69 127.46

Diploma Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Days Inventory Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 117.10 117.85 137.29 124.32 136.34

DPLMF vs GWW, FAST, FERG: Days Inventory Comparison

For the Industrial Distribution subindustry, Diploma'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.


Diploma Days Inventory vs Industrial Distribution Industry

For the Industrial Distribution industry and Industrials sector, Diploma's Days Inventory distribution charts can be found below:

* The bar in red indicates where Diploma's Days Inventory falls into.


DPLMF
96GF Score
Diploma PLC DPLMF
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Diploma Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

Diploma's Days Inventory for the fiscal year that ended in Sep. 2025 is calculated as

Days Inventory (A: Sep. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Sep. 2024 ) + Total Inventories (A: Sep. 2025 )) / count ) / Cost of Goods Sold (A: Sep. 2025 )*Days in Period
=( (370.503 + 401.892) / 2 ) / 1105.946*365
=386.1975 / 1105.946*365
=127.46

Diploma's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Sep. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (401.892 + 479.867) / 2 ) / 590.133*365 / 2
=440.8795 / 590.133*365 / 2
=136.34

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 136.34 mean?
Diploma (DPLMF) has a Days Inventory of 136.34 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diploma and its competitors. This is 44% above median its historical median of 94.57. Over the past decade, Diploma's Days Inventory has ranged from 75.06 to 133.65. According to the industry distribution chart, Diploma ranks #107 out of 153 companies in the Industrial Distribution industry, placing it in the top 69.9%.
Is Diploma's Days Inventory too high?
Diploma's current Days Inventory of 136.34 is 44% above median its 10-year median of 94.57. Over the past 10 years, this metric has ranged from a low of 75.06 to a high of 133.65. The Industrial Distribution industry median Days Inventory is 91.43. Diploma's value of 136.34 is 49.1% above this industry median. Based on the distribution chart, Diploma ranks #107 out of 153 companies in the Industrial Distribution industry, which is below the industry midpoint. Overall, Diploma has a GF Score™ of 96/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Diploma's Days Inventory compare to GWW and FAST?
According to the Industrial Distribution industry distribution chart, Diploma ranks #107 out of 153 companies for Days Inventory. This places Diploma in the lower half of its industry. The industry median Days Inventory is 91.43. Diploma's value of 136.34 is 49.1% above this benchmark. Historically, Diploma's own Days Inventory has ranged from 75.06 to 133.65 over the past decade. While the company's 10-year median is 94.57 vs. the industry median of 91.43, Diploma 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 Industrial Distribution company?
The median Days Inventory among Industrial Distribution companies is 91.43, based on 153 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. Diploma's current Days Inventory of 136.34 is 49.1% 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 Diploma and its competitors. For the Industrial Distribution industry, the median Days Inventory is 91.43 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diploma's current Days Inventory is 136.34, which is 44% above median its own 10-year median of 94.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diploma stock overvalued right now?
Based on GuruFocus' analysis, Diploma (DPLMF) is currently considered Modestly Overvalued. The stock's GF Value™ is $73.82, compared to a current price of $92.29 — trading 25% above its estimated fair value. The current Days Inventory is 136.34, which is 44% above median its 10-year median of 94.57 and 49.1% above the Industrial Distribution industry median of 91.43. Diploma's overall GF Score™ is 96/100 with 7 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 Diploma (DPLMF), the current Days Inventory is 136.34 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 Diploma (DPLMF) Overvalued in 2026?

Based on GuruFocus' analysis, Diploma stock appears to be overvalued. The current stock price of $92.29 is trading 25% above its estimated GF Value™ of $73.82. GuruFocus considers Diploma to be Modestly Overvalued.

Key valuation signals for DPLMF:

  • Days Inventory: 136.34 (44% above median its 10-year median of 94.57)
  • GF Value™: $73.82 vs. price of $92.29 (25% above fair value)
  • GF Score™: 96/100 with 7 warning signs
  • Industry Position: 49.1% above the Industrial Distribution median (#107 of 153)

No single metric tells the full story. See the DPLMF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Diploma Business Description

Address 10-11 Charterhouse Square, London, GBR, EC1M 6EE
Diploma PLC is a group of businesses supplying specialised technical products and services to various industries. The Group is organized into three main reportable business sectors: Controls, Seals and Life Sciences. The company offers consumables, instrumentation, and related services to the healthcare and environmental industries; seals, gaskets, filters, cylinders, components, and kits for heavy mobile machinery and industrial equipment; and specialized wiring, connectors, fasteners, and control devices for various applications. It operates in segments such as Wire & Cable (UK), Industrial Automation, Specialty Adhesives, Windy City Wire, Interconnect and Specialty Fasteners. The company operates in UK, USA, Rest of Europe, and Rest of World.
96GF Score

Get the complete analysis for DPLMF

Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$92.29
Price
$73.82
GF Value