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Diamond Electric Holdings CoTSE:6699 -1.24%53 3-Year ROIIC % is 30.78 as of Mar. 2026, which is 1848% above its 10-year median of 1.58. GuruFocus rates TSE:6699 with a GF Score™ of 53/100 and a GF Value™ of 円634.82 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,252 Vehicles & Parts companies, Diamond Electric Holdings Co ranks better than 80.83% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Diamond Electric Holdings Co's 3-Year ROIIC % for the quarter that ended in Mar. 2026 was 30.78%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
TSE:6699's 3-Year ROIIC % is ranked better than 80.83% of 1252
companies
in the Vehicles & Parts industry
Industry Median: 4.235
vs TSE:6699: 30.78
Diamond Electric Holdings Co (TSE:6699) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Diamond Electric Holdings Co 3-Year ROIIC % Related Terms
Diamond Electric Holdings Co 3-Year ROIIC % Historical Data
* 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.
For the Auto Parts subindustry, Diamond Electric Holdings Co's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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.
Diamond Electric Holdings Co 3-Year ROIIC % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Diamond Electric Holdings Co's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Diamond Electric Holdings Co's 3-Year ROIIC % falls into.
3-Year Incremental Net Operating Profit After Taxes (NOPAT)**
/
3-Year Incremental Invested Capital**
=
( 1366.5348 (Mar. 2026) - -1187 (Mar. 2023) )
/
( 71372 (Mar. 2026) - 63075 (Mar. 2023) )
=
2553.5348
/
8297
=
30.78%***
* 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.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Diamond Electric Holdings Co (TSE:6699) has a 3-Year ROIIC % of 30.78 as of Mar. 2026. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Diamond Electric Holdings Co and its competitors. This is 1848% above median its historical median of 1.58. According to the industry distribution chart, Diamond Electric Holdings Co ranks #240 out of 1252 companies in the Vehicles & Parts industry, placing it in the top 19.2%.
Is Diamond Electric Holdings Co's 3-Year ROIIC % too high?
Diamond Electric Holdings Co's current 3-Year ROIIC % of 30.78 is 1848% above median its 10-year median of 1.58. The Vehicles & Parts industry median 3-Year ROIIC % is 4.24. Diamond Electric Holdings Co's value of 30.78 is 626.8% above this industry median. Based on the distribution chart, Diamond Electric Holdings Co ranks #240 out of 1252 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Diamond Electric Holdings Co has a GF Score™ of 53/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diamond Electric Holdings Co's 3-Year ROIIC % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Diamond Electric Holdings Co ranks #240 out of 1252 companies for 3-Year ROIIC %. This places Diamond Electric Holdings Co in the top 19% of its industry — outperforming the majority of peers. The industry median 3-Year ROIIC % is 4.24. Diamond Electric Holdings Co's value of 30.78 is 626.8% above this benchmark. While the company's 10-year median is 1.58 vs. the industry median of 4.24, Diamond Electric Holdings Co 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 3-Year ROIIC % for a Vehicles & Parts company?
The median 3-Year ROIIC % among Vehicles & Parts companies is 4.24, based on 1,252 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. However, 3-Year ROIIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diamond Electric Holdings Co's current 3-Year ROIIC % of 30.78 is 626.8% 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 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Diamond Electric Holdings Co and its competitors. For the Vehicles & Parts industry, the median 3-Year ROIIC % is 4.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Electric Holdings Co's current 3-Year ROIIC % is 30.78, which is 1848% above median its own 10-year median of 1.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Electric Holdings Co stock overvalued right now?
Based on GuruFocus' analysis, Diamond Electric Holdings Co (TSE:6699) is currently considered Modestly Undervalued. The stock's GF Value™ is 円634.82, compared to a current price of 円476.00 — trading 25% below its estimated fair value. The current 3-Year ROIIC % is 30.78, which is 1848% above median its 10-year median of 1.58 and 626.8% above the Vehicles & Parts industry median of 4.24. Diamond Electric Holdings Co's overall GF Score™ is 53/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Diamond Electric Holdings Co (TSE:6699), the current 3-Year ROIIC % is 30.78 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 Diamond Electric Holdings Co (TSE:6699) Overvalued in 2026?
Based on GuruFocus' analysis, Diamond Electric Holdings Co stock appears to be undervalued.
The current stock price of 円476.00 is trading 25% below its estimated GF Value™ of 円634.82.
GuruFocus considers Diamond Electric Holdings Co to be Modestly Undervalued.
Key valuation signals for TSE:6699:
3-Year ROIIC %: 30.78 (1848% above median its 10-year median of 1.58)
GF Value™: 円634.82 vs. price of 円476.00 (25% below fair value)
Industry Position: 626.8% above the Vehicles & Parts median (#240 of 1252)
No single metric tells the full story. See the TSE:6699 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Diamond Electric Holdings Co Ltd is engaged in the manufacture and sale of electronic and energy-related components. The company has three reportable segments: Automotive Equipment Business, Energy Solutions Business, and Electronic Equipment Business. The Automotive Equipment segment manufactures ignition coils, transmission switches, rotation sensors, and in-vehicle control boards. The Energy Solutions segment produces power conditioners for solar power generation and energy storage hybrid systems. The Electronic Equipment segment manufactures electronic control devices for fan heaters, air conditioners, water heaters, and other related products such as ignition devices and power conditioners.
53GF Score
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