# DIAMOND ELECTRIC HOLDINGS CO.,LTD.: business model and financials

> Latest period: FY ending Mar 2026, consolidated, J-GAAP
> Unit: JPY millions
> Sources: 訂正有価証券報告書－第8期(2025/04/01－2026/03/31) (S100YRS9)
> Page: https://vizora.meequs.com/en/company/diamond-electric-holdings
> Retrieved: 2026-09-30T19:14:15.513Z

## Company

Diamond Electric Holdings, founded in 2018, is a company in Auto Parts listed on TSE Standard. It has 3,503 employees (consolidated).

| Field | Value |
| --- | ---: |
| Legal name | DIAMOND ELECTRIC HOLDINGS Co., Ltd. |
| Ticker | 6699 |
| Stock price | View on Yahoo Finance (https://finance.yahoo.co.jp/quote/6699.T) |
| Listing | TSE Standard |
| Head office | 大阪市淀川区塚本1丁目15番27号 |
| Representative (per filing) | 代表取締役社長 CEO兼グループCEO 小野 有理 |
| Founded | Oct 2018 |
| Share capital | ¥2.02B |
| Employees (consolidated) | 3,503 |
| Fiscal year end | March |
| Website | www.diaelec-hd.co.jp (https://www.diaelec-hd.co.jp/) |
| Corporate number | 4120001216273 |
| EDINET | E34065 |
| Industries (Vizora) | Auto Parts, Batteries, Electrical Equipment, Electronic Components |

> Profile source: annual securities report (S100YRS9, filed 2026-07-27). As of filing

## Five-axis industry profile

Primary industry: Auto Parts (2026-03-31)

| Axis | Industry percentile | Peers |
| --- | ---: | ---: |
| Revenue growth | 45.9 | 110 |
| Profitability | 18.5 | 111 |
| Cash conversion | 0.5 | 108 |
| Efficiency | 81.5 | 111 |
| Financial strength | 3.6 | 14 |

Each axis is shown independently. Missing values are labeled unavailable; no combined score is calculated. Industry rank is not an investment recommendation.

## Key points (generated from figures)

- About 42% of Diamond Electric Holdings's sales come from Automotive electronics, with Home electronics and Energy solutions making up much of the rest.
- Out of every ¥100 of sales, about ¥2 is left as operating profit.
- Revenue changed +5.5% from the prior year, operating profit +7.1%.

## Key figures at a glance

| Metric | Value | Note |
| --- | ---: | ---: |
| Revenue | ¥96.8B |  |
| Operating income | ¥2.43B | Margin 2.5% |
| Net income | ¥217M | Margin 0.2% |
| Free cash flow | -¥2.77B |  |
| Largest business | Automotive electronics | of segment revenue 41.8% |
| Employees (consolidated) | 3,503 |  |
| EPS | ¥179.43 |  |
| Diluted EPS | ¥179.19 |  |
| Book value per share | ¥587.97 |  |
| Equity ratio | 16.7% |  |
| Shares outstanding | 11,683,901 |  |
| Treasury shares | 35,700 |  |
| Shareholders | 8,283 |  |
| Cash ratio | 7.5% | Net cash -¥28.2B · Cash ÷ revenue 6.5% |
| Vs. industry median margin | -2.3 pp | Auto Parts |
| ROE | 2.5% | Derived from disclosed figures |
| ROA | 0.3% | Derived from disclosed figures |

## Notable figures

- FY2026, segment profit share differs by 24 points
- FY2026, employees -5% while operating income rose 7%

## What changed in 5 years

| Metric | FY ending Mar 2021 | FY ending Mar 2026 | Change |
| --- | ---: | ---: | ---: |
| Revenue | ¥70639000000 | ¥96768000000 | +37.0% |
| Operating income | ¥2247000000 | ¥2431000000 | +8.2% |
| Operating margin | 3.2% | 2.5% | -0.7 pp |
| Employees | 4,499 people | 3,503 people | -22.1% |
| Cash and equivalents | ¥15412000000 | ¥6312000000 | -59.0% |

### Change in segment revenue mix

Span: FY ending Mar 2021 → FY ending Mar 2026. Stable segment keys are connected; unmatched shares are marked as new or reorganized. Shares use total segment revenue.

| Flow | Revenue share |
| --- | ---: |
| 自動車機器事業 → 自動車機器事業 | 34.6% |
| エネルギーソリューション事業 → エネルギーソリューション事業 | 24.9% |
| エネルギーソリューション事業 → 事業再編・廃止 | 8.8% |
| 電子機器事業 → 電子機器事業 | 31.7% |
| 新設・再編 → 自動車機器事業 | 7.3% |
| 新設・再編 → 電子機器事業 | 0.3% |
| 新設・再編 → その他 | 1.2% |

Segment revenue source references: 7 (derived)

## Business growth × margin

X-axis: segment revenue CAGR. Y-axis: latest operating margin. Bubble size: latest revenue. CAGR requires at least two comparable years.

| Segment | CAGR span | Revenue CAGR | Latest revenue | Operating margin | Source refs |
| --- | ---: | ---: | ---: | ---: | ---: |
| Automotive electronics | 5 years | +10.6% | ¥40468000000 | 2.6% | 2 |
| Home electronics | 5 years | +6.7% | ¥30956000000 | 4.2% | 2 |
| Energy solutions | 5 years | +0.3% | ¥24142000000 | 9.5% | 2 |
| Other | 3 years | +8.1% | ¥1201000000 | -2.6% | 2 |

## Income statement（FY ending Mar 2026, consolidated, J-GAAP）

| Item | Amount (JPY mn) | % of revenue | Source |
| --- | ---: | ---: | ---: |
| Revenue | 96,768 | 100.0% | S100YRS9 |
| Cost of revenue | 81,223 | 83.9% | S100YRS9 |
| Gross profit | 15,544 | 16.1% | S100YRS9 |
| SG&A | 13,113 | 13.6% | S100YRS9 |
| Operating income | 2,431 | 2.5% | S100YRS9 |
| Ordinary income | 2,062 | 2.1% | S100YRS9 |
| Pretax income | 1,022 | 1.1% | S100YRS9 |
| Income tax | 781 | 0.8% | S100YRS9 |
| Net income | 240 | 0.2% | S100YRS9 |
| Net income attributable to owners | 217 | 0.2% | S100YRS9 |

## Per ¥100 of revenue（FY ending Mar 2026）

| Part | JPY |
| --- | ---: |
| Cost of revenue | 84 |
| SG&A | 14 |
| Operating income | 2 |
| (Ref.) Net income | 0 |

### Margin funnel

Gross margin 16.1% → Operating margin 2.5% → Net margin 0.2%
Derived from reported figures (DERIVED).

## Revenue and profit pattern

Pattern: Revenue and profit up
Revenue growth: +5.5%; Core profit growth: +7.1%
Growth quality: margin-expansion
Operating leverage (core profit growth ÷ revenue growth): 1.29×
Calculated from comparable annual consolidated filings.

## Year over year（FY ending Mar 2025 → FY ending Mar 2026、JPY mn）

| Metric | Prior | Current | Change | % change |
| --- | ---: | ---: | ---: | ---: |
| Revenue | 91,724 | 96,768 | 5,044 | +5.5% |
| Gross profit | 13,831 | 15,544 | 1,713 | +12.4% |
| Operating income | 2,270 | 2,431 | 161 | +7.1% |
| Net income attributable to owners | 411 | 217 | -194 | -47.2% |
| Operating cash flow | 3,588 | -1,379 | -4,967 | -138.4% |
| Free cash flow | 2,204 | -2,773 | -4,977 | -225.8% |

## History（JPY mn）

| Period | Revenue | Op. income | Op. margin | Net income | Op. CF | FCF | Source |
| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| FY ending Mar 2020 | 71,012 | 511 | 0.7% | -1,776 | -1,818 | -4,654 | S100LRUO |
| FY ending Mar 2021 | 70,639 | 2,247 | 3.2% | 95 | 3,716 | 1,729 | S100P3DB |
| FY ending Mar 2022 | 76,271 | 492 | 0.6% | 1,287 | -4,388 | -7,951 | S100R2UH |
| FY ending Mar 2023 | 91,106 | -1,187 | -1.3% | -1,075 | -3,491 | -6,507 | S100U2WK |
| FY ending Mar 2024 | 93,334 | 230 | 0.2% | -1,897 | 2,122 | -1,926 | S100X6GR |
| FY ending Mar 2025 | 91,724 | 2,270 | 2.5% | 411 | 3,588 | 2,204 | S100YRS9 |
| FY ending Mar 2026 | 96,768 | 2,431 | 2.5% | 217 | -1,379 | -2,773 | S100YRS9 |

## People and productivity（FY ending Mar 2026, consolidated, J-GAAP）

| Metric | Value |
| --- | ---: |
| Revenue per employee (consolidated) | ¥27.6M |
| Operating income per employee (consolidated) | ¥694K |
| Net income per employee (consolidated) | ¥61.9K |

Employees, revenue and profit are consolidated. Average annual salary is a separate parent-company figure. Calculated from disclosed figures (DERIVED).

| History | FY ending Mar 2022 | FY ending Mar 2023 | FY ending Mar 2024 | FY ending Mar 2025 | FY ending Mar 2026 |
| --- | ---: | ---: | ---: | ---: | ---: |
| Employees (consolidated) | 4,156 | 4,091 | 3,751 | 3,681 | 3,503 |
| Average salary (parent company) | — | — | — | — | — |
| Average age (parent company) | — | — | — | — | — |
| Average tenure (parent company) | — | — | — | — | — |

Year over year: Employees (consolidated) -4.8% · Revenue (consolidated) +5.5%

## Segments（FY ending Mar 2026, consolidated, J-GAAP、JPY mn）

| Segment | Revenue | Share | Op. income | Op. margin |
| --- | ---: | ---: | ---: | ---: |
| Automotive electronics | 40,468 | 41.8% | 1,038 | 2.6% |
| Energy solutions | 24,142 | 24.9% | 2,292 | 9.5% |
| Home electronics | 30,956 | 32.0% | 1,308 | 4.2% |
| Other | 1,201 | 1.2% | -31 | -2.6% |

### segmentMix — Revenue and profit mix

Calculated from disclosed figures (DERIVED). Shares use total segment revenue and total positive segment profit respectively. Difference = profit share − revenue share (pt). Inter-segment sales may prevent reconciliation to company revenue.

| Segment | Revenue share | Profit share | Difference (pt) | Margin |
| --- | ---: | ---: | ---: | ---: |
| Automotive electronics | 41.8% | 22.4% | -19.4 | 2.6% |
| Energy solutions | 24.9% | 49.4% | 24.5 | 9.5% |
| Home electronics | 32.0% | 28.2% | -3.8 | 4.2% |
| Other | 1.2% | — | — | -2.6% |

Loss-making segment (excluded from profit shares): Other -31 JPY mn

Segment → industry: Automotive electronics → Auto Parts / Energy solutions → Batteries / Energy solutions → Electrical Equipment / Home electronics → Electronic Components

## Revenue by geography

No geographic revenue breakdown was disclosed.

## Cash flow（FY ending Mar 2026, consolidated, J-GAAP）

| Item | Amount (JPY mn) | % of revenue | Source |
| --- | ---: | ---: | ---: |
| Operating cash flow | -1,379 | -1.4% | S100YRS9 |
| Capital expenditure | 1,394 | 1.4% | S100YRS9 |
| Free cash flow | -2,773 | -2.9% | 算出 |
| Investing cash flow | -1,270 | -1.3% | S100YRS9 |
| Financing cash flow | 1,315 | 1.4% | S100YRS9 |
| Dividends paid | 343 | 0.4% | S100YRS9 |
| Share buyback | 0 | 0.0% | S100YRS9 |
| Change in cash | -958 | -1.0% | S100YRS9 |
| Cash and equivalents | 6,312 | 6.5% | S100YRS9 |

## Balance sheet

Figures are as of each fiscal year end. Derived values are marked as such in the source column. Lease liabilities are excluded from interest-bearing debt.

| Metric | FY ending Mar 2022 | FY ending Mar 2023 | FY ending Mar 2024 | FY ending Mar 2025 | FY ending Mar 2026 | Source |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| Cash and equivalents | 10,739 | 9,589 | 7,987 | 7,271 | 6,312 | S100U2WK, S100X6GR, S100YRS9 |
| Total assets | 68,727 | 78,727 | 82,032 | 79,278 | 83,943 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Net assets | 10,176 | 10,903 | 10,280 | 11,553 | 14,168 | S100U2WK, S100X6GR, S100YRS9 |
| Share capital | 654 | 1,236 | 1,236 | 1,247 | 2,024 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Property, plant and equipment | 15,447 | 18,516 | 20,541 | 19,002 | 17,934 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Intangible assets excluding goodwill | 435 | 581 | 654 | 563 | 505 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Goodwill | 40 | 33 | 27 | 20 | 13 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Investment securities | 2,908 | 2,970 | 2,935 | 2,802 | 3,236 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Current assets | 46,019 | 52,074 | 52,742 | 50,928 | 55,260 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Current liabilities | 40,307 | 48,542 | 55,183 | 53,467 | 56,004 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Trade payables | 8,792 | 9,928 | 10,002 | 10,059 | 11,173 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Short-term borrowings | 14,405 | 18,729 | 20,222 | 21,976 | 23,651 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Long-term borrowings | 15,602 | 15,610 | 12,576 | 10,919 | 10,611 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Bonds | — | 1,000 | 830 | 560 | 290 | S100U2WK, S100X6GR, S100YRS9 |
| Interest-bearing debt | — | 35,339 | 33,628 | 33,455 | 34,552 | 算出 |
| Total liabilities | 58,551 | 67,823 | 71,752 | 67,725 | 69,775 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Non-controlling interests | 100 | 114 | 138 | 160 | 183 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Equity attributable to owners of parent | 9,474 | 9,505 | 7,509 | 7,829 | 9,324 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Retained earnings | 901 | -375 | -198 | 99 | 2,888 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |
| Treasury stock | -1,797 | -1,685 | -1,670 | -1,671 | -1,604 | S100R2UH, S100U2WK, S100X6GR, S100YRS9 |

### Assets and funding mix

| Assets | Share | Source |
| --- | ---: | ---: |
| Cash | 7% | S100YRS9 |
| Property, plant and equipment | 21% | S100YRS9 |
| Intangibles and goodwill | 1% | S100YRS9 |
| Investment securities | 4% | S100YRS9 |
| Other assets | 67% | S100YRS9 |

| Funding source | Share | Source |
| --- | ---: | ---: |
| Trade payables | 13% | S100YRS9 |
| Interest-bearing debt | 41% | 算出 |
| Other liabilities | 29% | S100YRS9 |
| Equity | 17% | S100YRS9 |

### Balance sheet history

| Metric | FY ending Mar 2022 | FY ending Mar 2023 | FY ending Mar 2024 | FY ending Mar 2025 | FY ending Mar 2026 |
| --- | ---: | ---: | ---: | ---: | ---: |
| Total assets | 68,727 | 78,727 | 82,032 | 79,278 | 83,943 |
| Equity | 10,176 | 10,903 | 10,280 | 11,553 | 14,168 |
| Interest-bearing debt | — | 35,339 | 33,628 | 33,455 | 34,552 |
| Cash | 10,739 | 9,589 | 7,987 | 7,271 | 6,312 |

## Asset intensity and goodwill

Ratios are derived from reported values. Goodwill is used only when separately reported, never inferred from combined intangible assets.

| Metric | Value | Sources |
| --- | ---: | ---: |
| Asset intensity (fixed assets ÷ revenue) | 18.5% | S100YRS9 |
| Fixed assets ÷ total assets | 21.4% | S100YRS9 |
| Goodwill ÷ parent equity | 0.1% | S100YRS9 |

Goodwill over 4 years: 40 → 13 JPY; total investing cash flow: -12,622 JPY. This does not imply causation.

### Cash quality

Net cash = cash − interest-bearing debt. Net debt ratio = (interest-bearing debt − cash) ÷ positive operating cash flow. Omit when debt components are incomplete; other ratios are derived from reported figures.

| Metric | Value |
| --- | ---: |
| Cash ratio (cash ÷ total assets) | 7.5% |
| Cash ÷ revenue | 6.5% |
| Net cash (cash − interest-bearing debt) | -¥28.2B |
| Net debt ÷ operating cash flow | — |
| Cash conversion (operating CF ÷ operating income) | -56.7% |
| Cash vs. profit gap | -1,596 JPY mn (of net income -735.5%) |
| Shareholder returns / net income | 158.1% |
| Shareholder returns / FCF | — |
| Shareholder payments — dividends / net income | 158.1% |
| Shareholder payments — dividends / FCF | — |
| CapEx intensity (capex ÷ revenue) | 1.4% |
| Investing CF relative to operating CF | — |

## ROA and ROE

ROE is decomposed into net margin × asset turnover × financial leverage. Leverage can raise ROE, so the ratio alone does not assess a company's condition. Ending balances are used without a prior year; total equity approximates parent equity when unavailable.

| Period | Net margin | Asset turnover | ROA | Financial leverage | ROE | Sources |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| 2022 | 1.7% | 1.11× | 1.9% | 7.25× | 13.6% | S100R2UH |
| 2023 | — | —× | -1.5% | —× | — | S100U2WK |
| 2024 | — | —× | -2.4% | —× | — | S100X6GR |
| 2025 | 0.4% | 1.14× | 0.5% | 10.52× | 5.4% | S100YRS9 |
| 2026 | 0.2% | 1.19× | 0.3% | 9.52× | 2.5% | S100YRS9 |

## Ownership

| Counterparty | Relation | Ratio | As of |
| --- | ---: | ---: | ---: |
| 株式会社日本カストディ銀行（信託口） | Major shareholder | 6.7% | 2026-03-31 |
| ダイヤモンドエンジニアリング株式会社 | Major shareholder | 5.5% | 2026-03-31 |
| 日本マスタートラスト信託銀行株式会社（信託口） | Major shareholder | 5.2% | 2026-03-31 |
| All Diamond Shareholders | Major shareholder | 4.3% | 2026-03-31 |
| 大和証券株式会社 | Major shareholder | 2.7% | 2026-03-31 |
| 楽天証券株式会社共有口 | Major shareholder | 1.8% | 2026-03-31 |
| 池永 辰朗 | Major shareholder | 1.8% | 2026-03-31 |
| BNP PARIBAS LONDON BRANCH FOR PRIME BROKERAGE CLEARANCE ACC FOR THIRD PARTY（常任代理人 香港上海銀行東京支店） | Major shareholder | 1.8% | 2026-03-31 |
| 豊栄産業株式会社 | Major shareholder | 1.2% | 2026-03-31 |
| 上田八木短資株式会社 | Major shareholder | 1.1% | 2026-03-31 |

## Sources

| Document | ID | Published | URL |
| --- | ---: | ---: | ---: |
| 訂正有価証券報告書－第8期(2025/04/01－2026/03/31) | S100YRS9 | 2026-07-27 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100YRS9,, |
| 訂正有価証券報告書－第7期(2024/04/01－2025/03/31) | S100X6GR | 2025-11-25 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100X6GR,, |
| 訂正有価証券報告書－第6期(2023/04/01－2024/03/31) | S100U2WK | 2024-07-24 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100U2WK,, |
| 有価証券報告書－第5期(2022/04/01－2023/03/31) | S100R2UH | 2023-06-26 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100R2UH,, |
| 訂正有価証券報告書－第4期(令和3年4月1日－令和4年3月31日) | S100P3DB | 2022-08-26 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100P3DB,, |
| 有価証券報告書－第3期(令和2年4月1日－令和3年3月31日) | S100LRUO | 2021-06-28 | https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100LRUO,, |

## Definitions

- Amounts are in millions of JPY (rounded). The period is stated in each table heading
- Operating margin = operating income ÷ revenue. Net income is attributable to owners of the parent when disclosed
- Free cash flow (FCF) = operating cash flow − capital expenditure
- ¥100 model = breakdown per ¥100 of revenue (rounded so parts sum to 100)
- Segment revenues include inter-segment sales and may not sum to consolidated revenue
- Source IDs are EDINET document IDs (docID). "算出" (derived) means computed from other disclosed values
- All figures are extracted mechanically from filings. AI-written text never generates figures
- Source: company filings submitted to EDINET (Financial Services Agency of Japan). Figures were extracted, edited and processed, and charts and text were created, by Vizora — not by the FSA (used under the Public Data License v1.0).