DIOD (Diodes) Days Inventory: 159.02 (As of Mar. 2026) — 44% Above Median


DIOD Diodes Inc DIOD
67 GF Score
Price $103.62
GF Value $67.90
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Diodes Days Inventory?

Diodes DIOD -9.66% 67 Days Inventory is 159.02 as of Mar. 2026, which is 44% above its 10-year median of 110.32. GuruFocus rates DIOD with a GF Score™ of 67/100 and a GF Value™ of $67.90 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 983 Semiconductors companies, Diodes ranks worse than 69.48% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Diodes's Average Total Inventories for the three months ended in Mar. 2026 was $482 Mil. Diodes's Cost of Goods Sold for the three months ended in Mar. 2026 was $277 Mil. Hence, Diodes's Days Inventory for the three months ended in Mar. 2026 was 159.02.

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

DIOD' s Days Inventory Range Over the Past 10 Years
Min: 101.23   Med: 110.32   Max: 180.3
Current: 163.15

During the past 13 years, Diodes's highest Days Inventory was 180.30. The lowest was 101.23. And the median was 110.32.

DIOD's Days Inventory is ranked worse than
69.48% of 983 companies
in the Semiconductors industry
Industry Median: 111.84 vs DIOD: 163.15

Diodes's Days Inventory declined from Mar. 2025 (189.78) to Mar. 2026 (159.02).

Inventory Turnover measures how fast the company turns over its inventory within a year. Diodes's Inventory Turnover for the three months ended in Mar. 2026 was 0.57.

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. Diodes's Inventory-to-Revenue for the three months ended in Mar. 2026 was 1.19.


Diodes  (NAS:DIOD) 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.

Diodes'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.

Diodes'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.


Diodes Days Inventory Related Terms


Diodes Days Inventory Historical Data

* Premium members only.

The historical data trend for Diodes'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.

Diodes Days Inventory Chart

Diodes Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 105.45 110.26 136.40 180.30 169.41

Diodes Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 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 189.78 173.44 160.15 159.47 159.02

DIOD vs POWI, PI, SYNA: Days Inventory Comparison

For the Semiconductors subindustry, Diodes'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.


Diodes Days Inventory vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Diodes's Days Inventory distribution charts can be found below:

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


DIOD
67GF Score
Diodes Inc DIOD
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Diodes Days Inventory Calculation

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

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

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (474.948 + 471.546) / 2 ) / 1019.637*365
=473.247 / 1019.637*365
=169.41

Diodes'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: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (471.546 + 492.761) / 2 ) / 276.675*365 / 4
=482.1535 / 276.675*365 / 4
=159.02

* 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 159.02 mean?
Diodes (DIOD) has a Days Inventory of 159.02 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diodes and its competitors. This is 44% above median its historical median of 110.32. Over the past decade, Diodes' Days Inventory has ranged from 101.23 to 180.30. According to the industry distribution chart, Diodes ranks #683 out of 983 companies in the Semiconductors industry, placing it in the top 69.5%.
Is Diodes' Days Inventory too high?
Diodes' current Days Inventory of 159.02 is 44% above median its 10-year median of 110.32. Over the past 10 years, this metric has ranged from a low of 101.23 to a high of 180.30. The Semiconductors industry median Days Inventory is 111.84. Diodes' value of 159.02 is 42.2% above this industry median. Based on the distribution chart, Diodes ranks #683 out of 983 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Diodes has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Diodes' Days Inventory compare to POWI and PI?
According to the Semiconductors industry distribution chart, Diodes ranks #683 out of 983 companies for Days Inventory. This places Diodes in the lower half of its industry. The industry median Days Inventory is 111.84. Diodes' value of 159.02 is 42.2% above this benchmark. Historically, Diodes' own Days Inventory has ranged from 101.23 to 180.30 over the past decade. While the company's 10-year median is 110.32 vs. the industry median of 111.84, Diodes 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 Semiconductors company?
The median Days Inventory among Semiconductors companies is 111.84, based on 983 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. Diodes's current Days Inventory of 159.02 is 42.2% 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 Diodes and its competitors. For the Semiconductors industry, the median Days Inventory is 111.84 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diodes's current Days Inventory is 159.02, which is 44% above median its own 10-year median of 110.32. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diodes stock overvalued right now?
Based on GuruFocus' analysis, Diodes (DIOD) is currently considered Significantly Overvalued. The stock's GF Value™ is $67.90, compared to a current price of $103.62 — trading 52.6% above its estimated fair value. The current Days Inventory is 159.02, which is 44% above median its 10-year median of 110.32 and 42.2% above the Semiconductors industry median of 111.84. Diodes' overall GF Score™ is 67/100 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 Diodes (DIOD), the current Days Inventory is 159.02 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 Diodes (DIOD) Overvalued in 2026?

Based on GuruFocus' analysis, Diodes stock appears to be overvalued. The current stock price of $103.62 is trading 52.6% above its estimated GF Value™ of $67.90. GuruFocus considers Diodes to be Significantly Overvalued.

Key valuation signals for DIOD:

  • Days Inventory: 159.02 (44% above median its 10-year median of 110.32)
  • GF Value™: $67.90 vs. price of $103.62 (52.6% above fair value)
  • GF Score™: 67/100 with 5 warning signs
  • Industry Position: 42.2% above the Semiconductors median (#683 of 983)

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


Diodes Business Description

Other Exchanges DDQ:Germany
Address 4949 Hedgcoxe Road, Suite 200, Plano, TX, USA, 75024
Diodes Inc is a manufacturer and supplier of high-quality application-specific products within the broad discrete, logic, analog, and mixed-signal semiconductor markets. It serves the customer electronics, computing, communications, industrial, and automotive markets. The Company's products include diodes; rectifiers; transistors; MOSFETs; GPP bridges; GPP rectifiers; protection devices; function-specific arrays; single gate logic; amplifiers and comparators; Hall-effect and temperature sensors; and power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, voltage references along with special-function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers.
67GF Score

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

$103.62
Price
$67.90
GF Value