Gentex

GNTX on Nasdaq. Gentex sells mirrors, electronics, and alarms to car, aviation, and fire industries. Market value $4.6bn.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Quality checks use five annual reports, the latest for the year to December 2025.

We can't read total debt from the filing, so debt is left out.

Should I look at this?

Worth a closer look

Read what could go wrong

This is not advice. Check the numbers below.

Compare with another stock

Cash yield
past 12 months to June 2026
10.9%very high

For every $100 of what the whole company costs, it produced $10.94 of spare cash in the past 12 months. A savings account pays about $4.

Price to profit
past 12 months to June 2026
n/a

The filings do not give us enough to work this out.

Return on capital
five annual reports to December 2025
n/a

The filings do not give us enough to work this out.

Quality score: 80 of 100. Price score: 83 of 100. Our list needs 70 on quality and 60 on price.

$21.55 a share, 5% above its 1-year low

Over the past year the price has ranged from $20.48 to $27.40.

Dividend: 2.3% a year

Paid every year for at least 5 years

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

0.3
0.2
0.4
0.4
0.5
0.5
2021202220232024202512 monthsto Jun '26
Revenue
$1.7bn$1.9bn$2.3bn$2.3bn$2.5bn
Operating margin
23.7%19.3%21.6%19.9%18.7%
Debt to equity
n/an/an/an/an/a
Shares outstanding
0.23bn0.23bn0.23bn0.22bn0.21bn

Health checks

  • Free cash flow positive5 of 5 years
  • Accounting looks honest (Beneish)Not enough data
  • Financial strength (Piotroski)7 of 8 checks we could run
  • Profit backed by cash (accruals)Yes
  • DebtUnknown
  • Revenue growth, five yearsSlow, 8.5% a year
  • Buying back its own sharesYes, 10% fewer since 2021

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Sales: $651 million last quarter, down 1% on a year ago.
  • Profit: $115 million, up 19% on a year ago.
  • It keeps 19 cents of each $1 of sales as operating profit, about the same as a year earlier.
  • Spare cash over the past 12 months: $497 million, up from $405 million.
  • 5% fewer shares than a year ago. Each share owns a bit more of the company.
  • Sales grew on a year ago in 3 of the last 4 quarters.
Sales by quarter
Sales by quarter
Quarter toAmount
September 2024$609m
December 2024$542m
March 2025$577m
June 2025$658m
September 2025$655m
December 2025$644m
March 2026$675m
June 2026$651m
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024$123m
December 2024$88m
March 2025$95m
June 2025$96m
September 2025$101m
December 2025$93m
March 2026$98m
June 2026$115m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
24 February 2026
Next quarterly (estimated, 10-Q)
3 November 2026

Who owns it

9 long-term investors we follow own it, unchanged from 9 last quarter. 531 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

3 investors own more than 5%.

  • 5.3%
    Since 31 March 2026
  • American Century Investment Management, Inc.
    Passive investor
    at least 5.2%
    (filed with 2 related holders)
    Since 30 June 2026
  • Wellington Management Company LLP
    Passive investor
    5.2%
    Since 30 June 2025
  • Sold down below 5%
    Since 31 December 2025
  • The Vanguard Group
    Passive investor
    Sold down below 5%
    Since 13 March 2026

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

No insider bought shares on the open market in the last 12 months. 9 sold $3m.

  • ANDERSON JOSEPH B JR
    Director
    Sold
    Date
    15 May 2026
    Shares
    5,939
    Price
    $22.98
    Value
    $136,478
  • WALKER BRIAN C
    Director
    Sold
    Date
    15 May 2026
    Shares
    5,939
    Price
    $22.98
    Value
    $136,478
  • BROWN LESLIE L
    Director
    Sold
    Date
    5 May 2026
    Shares
    10,782
    Price
    $22.85
    Value
    $246,369
  • Schaum Richard O
    Director
    Sold
    Date
    30 April 2026
    Shares
    4,815
    Price
    $23.31
    Value
    $112,238
  • Boehm Neil
    Chief Technology Officer
    Sold
    Date
    17 February 2026
    Shares
    11,248
    Price
    $24.82
    Value
    $279,175
  • Chiodo Matthew
    Vice President of Sales
    Sold
    Date
    17 February 2026
    Shares
    19,827
    Price
    $25.03
    Value
    $496,270
  • Ryan Scott P
    General Counsel
    Sold
    Date
    17 February 2026
    Shares
    9,024
    Price
    $24.73
    Value
    $223,164
  • Downing Steven R
    President and CEO
    Sold
    Date
    17 February 2026
    Shares
    35,000
    Price
    $24.75
    Value
    $866,250
  • Nash Kevin C
    Chief Financial Officer
    Sold
    Date
    17 February 2026
    Shares
    11,885
    Price
    $24.98
    Value
    $296,887

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 24 Feb 2026, plus the 10-Q filed 4 Aug 2026 and 3 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

Cheap for a reason is the question the numbers cannot answer.

Whether the price already reflects the risks is what the deep dive is for.

What changed in the risks this year

Companies must list what could hurt them each year. These are the parts that changed since last year’s report.

  • Impairment of Goodwill and Intangible Assets.

    Already happened
    Impairment of Goodwill and Intangible Assets. We evaluate the recoverability of recorded goodwill and other intangible asset amounts annually, or when evidence of potential impairment exists. The annual impairment test is based on several factors requiring judgment. We have experienced impairment charges in the past (refer to Note 1 , Summary of Significant A ccounting and Reporting Policies ) of the Consolidated Financial Statements ). Additional future impairment may result from, among other things, deterioration in the performance of our business or product lines, adverse market conditions and changes in the competitive landscape, and a variety of other circumstances. The amount of any impairment is recorded as a charge to our Consolidated Statement of Income. We may never realize the full value of our goodwill and intangible assets, and determinations requiring impairment charges have had and will continue to have an adverse effect on our financial condition and results of operations.
    Read more
  • The Company, along with many governments, regulators, investors, employees, customers and other stakeholders, are increasingly focused on…

    Could happen
    The Company, along with many governments, regulators, investors, employees, customers and other stakeholders, are increasingly focused on environmental, social, and governance considerations relating to our business, including greenhouse gas emissions, human and civil rights and diversity, equity and inclusion. New laws and regulations in these areas have been proposed and may be adopted by varying levels of government, and the criteria used by regulators and other relevant stakeholders to evaluate practices, capabilities and performance are changing rapidly, which in each case could require us to undertake costly initiatives or operational changes. Non-compliance with emerging rules or standards or a failure to address regulator, stakeholder and societal expectations may result in potential cost increases, litigation, fines, penalties, production and sales restrictions, brand or reputational damage, loss of customers, suppliers and commercial partners, failure to retain and attract talent, lower valuation and higher investor activism activities. In addition, we may make statements about our goals and initiatives in this regard through periodic financial and non-financial reports, information provided on our website, press statements and other communications. Managing these considerations and implementing these goals and initiatives involves risks and uncertainties, including increased costs, requires investments and often depends on third-party performance or data that is outside our control. We cannot guarantee that we will achieve any such goals and initiatives we may announce, satisfy all stakeholder expectations, or that the benefits of implementing or achieving these goals and initiatives will not surpass their projected costs. Any failure, or perceived failure, to achieve such goals and initiatives, as well as to manage risks attendant thereto, adhere to public statements, comply with federal, state or international laws and regulations or meet evolving and varied stakeholder expectations and standards could result in legal and regulatory proceedings against us and materially adversely affect our business, financial condition or results of operations.
    Read more
  • Biometrics Market.

    Could happen
    Biometrics Market. A component of the Company's growth strategy includes expansion of our biometric technology and solutions into commercial markets. Although the use of biometric readers on popular consumer products, such as smartphones, has increased interest in biometrics as a means of authenticating and/or identifying individuals, commercial markets for biometrics technology are still developing and evolving. Biometrics-based solutions compete with more traditional security methods including keys, cards, personal identification numbers, fingerprints, and security personnel. Acceptance of biometrics as an alternative to such traditional methods depends upon a number of factors, including: the cost, performance and reliability of our products and services and the products and services offered by our competitors; customers’ perceptions regarding the benefits of biometrics solutions; public perceptions regarding the intrusiveness of these solutions and the manner in which organizations use the biometric information collected; public perceptions regarding the confidentiality of private information; proposed or enacted legislation related to privacy of information; customers’ satisfaction with biometrics solutions; and marketing efforts and publicity regarding biometrics solutions.
    Read more
  • A considerable number of established companies have developed or are developing and marketing software and hardware for biometrics products…

    Could happen
    A considerable number of established companies have developed or are developing and marketing software and hardware for biometrics products and applications, including facial recognition, fingerprint biometrics, and other iris authentication competitors that currently compete with, or will compete directly with, our biometric authentication solutions. We expect that additional competitors will enter the biometrics market and become significant long-term competitors, and that as a result, competition will increase. Companies competing with us may introduce solutions that are competitively priced, have increased performance or functionality or incorporate technological advances we have not yet developed or implemented. There is no assurance the Company will be successful in this area.
    Read more
  • Our allowance for credit losses applicable to trade accounts receivable primarily relate to financially distressed automotive mirror and…

    Our allowance for credit losses applicable to trade accounts receivable primarily relate to financially distressed automotive mirror and electronics customers. We continue to work with financially distressed customers in collecting past due balances. Our allowance for credit losses applicable to loans receivable reflect the Company's estimate of expected credit losses over the contractual life of the loans, considering historical loss experience, current conditions, and reasonable and supportable forecasts. Refer to Note 1 , Summary of Significant Accounting and R eporting Policies of the Consolidated Financial Statements .
    Read more

Read it in the annual report

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.