DIOD (Diodes) Research & Development: $164 Mil (TTM As of Mar. 2026)


DIOD Diodes Inc DIOD
67 GF Score
Price $115.28
GF Value $67.90
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Diodes Research & Development?

Diodes DIOD +1.71% 67 Research & Development is $164 Mil as of Mar. 2026. GuruFocus rates DIOD with a GF Score™ of 67/100 and a GF Value™ of $67.90 (Significantly Overvalued). The stock has 8 warning signs investors should review.

Research & Development is the aggregate amount of research and development expenses during the year. Diodes's Research & Development for the three months ended in Mar. 2026 was $41 Mil. Its Research & Development for the trailing twelve months (TTM) ended in Mar. 2026 was $164 Mil.

Diodes  (NAS:DIOD) Research & Development Explanation

If competitive advantage is created by a patent or tech advantage, at some point it will disappear.

High R&D usually dictates high SG&A which threatens the competitive advantage.

Diodes Research & Development Related Terms

Diodes Research & Development Historical Data

* Premium members only.

The historical data trend for Diodes's Research & Development 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 Research & Development Chart

Diodes Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Research & Development
Get a 7-Day Free Trial Premium Member Only Premium Member Only 119.20 126.32 134.87 134.05 162.18

Diodes Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Research & Development 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 38.63 40.54 41.86 41.15 40.62
DIOD
67GF Score
Diodes Inc DIOD
Research & Development is just one metric. See GF Score™, valuation, warning signs, and more.
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Diodes Research & Development Calculation

This is the expense the company spent on research and development.

Research & Development for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $164 Mil.

* 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 Research & Development →
What does a Research & Development of $164 Mil mean?
Diodes (DIOD) has a Research & Development of $164 Mil as of Mar. 2026. Research and development expense is the total cost for research and development activities. View historical data on Diodes and its competitors.
Is Diodes' Research & Development too high?
Diodes' current Research & Development is $164 Mil. 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' Research & Development compare to POWI and PI?
Diodes' Research & Development of $164 Mil can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Research & Development for a Semiconductors company?
A good Research & Development depends on the Semiconductors industry context. However, Research & Development should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Research & Development mean?
A high Research & Development can signal that a stock is expensive relative to its fundamentals. Research and development expense is the total cost for research and development activities. View historical data on Diodes and its competitors. Diodes's current Research & Development is $164 Mil. 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 $115.28 — trading 69.8% above its estimated fair value. The current Research & Development is $164 Mil. Diodes' overall GF Score™ is 67/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Research & Development calculated?
Research & Development is calculated from a company's financial statements. For Diodes (DIOD), the current Research & Development is $164 Mil 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 $115.28 is trading 69.8% above its estimated GF Value™ of $67.90. GuruFocus considers Diodes to be Significantly Overvalued.

Key valuation signals for DIOD:

  • Research & Development: $164 Mil
  • GF Value™: $67.90 vs. price of $115.28 (69.8% above fair value)
  • GF Score™: 67/100 with 8 warning signs

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

$115.28
Price
$67.90
GF Value