Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
GentexGNTX -1.16%88 Cyclically Adjusted PB Ratio is 2.33 as of Aug. 02, 2026, which is 44% below its 10-year median of 4.16. GuruFocus rates GNTX with a GF Score™ of 88/100 and a GF Value™ of $35.65 (Significantly Undervalued). The stock has 3 warning signs investors should review. Among 1,015 Vehicles & Parts companies, Gentex ranks worse than 68.47% on this metric.
As of today (2026-08-02), Gentex's current share price is $23.36. Gentex's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $10.02. Gentex's Cyclically Adjusted PB Ratio for today is 2.33.
The historical rank and industry rank for Gentex's Cyclically Adjusted PB Ratio or its related term are showing as below:
GNTX'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 2.12 Med: 4.16 Max: 5.97
Current: 2.33
During the past years, Gentex's highest Cyclically Adjusted PB Ratio was 5.97. The lowest was 2.12. And the median was 4.16.
GNTX's Cyclically Adjusted PB Ratio is ranked worse than 68.47% of 1015
companies
in the Vehicles & Parts industry
Industry Median: 1.26
vs GNTX: 2.33
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Gentex's adjusted book value per share data for the three months ended in Mar. 2026 was $11.750. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $10.02 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Gentex (NAS:GNTX) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Gentex Cyclically Adjusted PB Ratio Related Terms
Gentex Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Gentex's Cyclically Adjusted PB Ratio 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.
GNTX vs ATMU, DORM, GTX: Cyclically Adjusted PB Ratio Comparison
For the Auto Parts subindustry, Gentex's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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.
Gentex Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Gentex's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Gentex's Cyclically Adjusted PB Ratio falls into.
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Gentex's Cyclically Adjusted PB Ratio for today 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 2.33 mean?
Gentex (GNTX) has a Cyclically Adjusted PB Ratio of 2.33 as of Aug. 02, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Gentex and its competitors. This is 44% below median its historical median of 4.16. Over the past decade, Gentex's Cyclically Adjusted PB Ratio has ranged from 2.12 to 5.97. According to the industry distribution chart, Gentex ranks #695 out of 1015 companies in the Vehicles & Parts industry, placing it in the top 68.5%.
Is Gentex's Cyclically Adjusted PB Ratio too high?
Gentex's current Cyclically Adjusted PB Ratio of 2.33 is 44% below median its 10-year median of 4.16. Over the past 10 years, this metric has ranged from a low of 2.12 to a high of 5.97. The Vehicles & Parts industry median Cyclically Adjusted PB Ratio is 1.26. Gentex's value of 2.33 is 84.9% above this industry median. Based on the distribution chart, Gentex ranks #695 out of 1015 companies in the Vehicles & Parts industry, which is below the industry midpoint. Overall, Gentex has a GF Score™ of 88/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Gentex's Cyclically Adjusted PB Ratio compare to ATMU and DORM?
According to the Vehicles & Parts industry distribution chart, Gentex ranks #695 out of 1015 companies for Cyclically Adjusted PB Ratio. This places Gentex in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.26. Gentex's value of 2.33 is 84.9% above this benchmark. Historically, Gentex's own Cyclically Adjusted PB Ratio has ranged from 2.12 to 5.97 over the past decade. While the company's 10-year median is 4.16 vs. the industry median of 1.26, Gentex 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 Cyclically Adjusted PB Ratio for a Vehicles & Parts company?
The median Cyclically Adjusted PB Ratio among Vehicles & Parts companies is 1.26, based on 1,015 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Gentex's current Cyclically Adjusted PB Ratio of 2.33 is 84.9% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Gentex and its competitors. For the Vehicles & Parts industry, the median Cyclically Adjusted PB Ratio is 1.26 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Gentex's current Cyclically Adjusted PB Ratio is 2.33, which is 44% below median its own 10-year median of 4.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Gentex stock overvalued right now?
Based on GuruFocus' analysis, Gentex (GNTX) is currently considered Significantly Undervalued. The stock's GF Value™ is $35.65, compared to a current price of $23.36 — trading 34.5% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.33, which is 44% below median its 10-year median of 4.16 and 84.9% above the Vehicles & Parts industry median of 1.26. Gentex's overall GF Score™ is 88/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Gentex (GNTX), the current Cyclically Adjusted PB Ratio is 2.33 as of Aug. 02, 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 Gentex (GNTX) Overvalued in 2026?
Based on GuruFocus' analysis, Gentex stock appears to be undervalued.
The current stock price of $23.36 is trading 34.5% below its estimated GF Value™ of $35.65.
GuruFocus considers Gentex to be Significantly Undervalued.
Key valuation signals for GNTX:
Cyclically Adjusted PB Ratio: 2.33 (44% below median its 10-year median of 4.16)
GF Value™: $35.65 vs. price of $23.36 (34.5% below fair value)
Industry Position: 84.9% above the Vehicles & Parts median (#695 of 1015)
No single metric tells the full story. See the GNTX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Gentex was founded in 1974 to produce smoke-detection equipment. The company sold its first glare-control interior mirror in 1982 and its first model using electrochromic technology in 1987. Automotive revenue was about 89% of total revenue in 2025, down from 98% in 2024 due to the Voxx acquisition in April 2025. The company is constantly developing new applications for the technology to remain on top. Sales in 2025 totaled about $2.5 billion with 44.8 million mirrors shipped. The unit mix breaks out as 64% interior and 36% exterior versus 31% exterior in 2019. The company is based in Zeeland, Michigan.
88GF Score
Get the complete analysis for GNTX
Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
GNTX has been successfully added to your 
