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.
NAPCO Security TechnologiesFRA:NS1 -0.46%99 Cyclically Adjusted PB Ratio is 11.59 as of Aug. 20, 2026, which is 8% above its 10-year median of 10.70. GuruFocus rates FRA:NS1 with a GF Score™ of 99/100 and a GF Value™ of €36.84. Among 719 Business Services companies, NAPCO Security Technologies ranks worse than 96.11% on this metric.
The historical rank and industry rank for NAPCO Security Technologies's Cyclically Adjusted PB Ratio or its related term are showing as below:
FRA:NS1'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 2.67 Med: 10.7 Max: 21.64
Current: 11.37
During the past years, NAPCO Security Technologies's highest Cyclically Adjusted PB Ratio was 21.64. The lowest was 2.67. And the median was 10.70.
FRA:NS1's Cyclically Adjusted PB Ratio is ranked worse than 96.11% of 719
companies
in the Business Services industry
Industry Median: 1.53
vs FRA:NS1: 11.37
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.
NAPCO Security Technologies's adjusted book value per share data for the three months ended in Mar. 2026 was €4.304. 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 €2.78 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
NAPCO Security Technologies (FRA:NS1) 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.
NAPCO Security Technologies Cyclically Adjusted PB Ratio Related Terms
NAPCO Security Technologies Cyclically Adjusted PB Ratio 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.
NAPCO Security Technologies Cyclically Adjusted PB Ratio Chart
FRA:NS1 vs EVLV, MG, CIX: Cyclically Adjusted PB Ratio Comparison
For the Security & Protection Services subindustry, NAPCO Security Technologies'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.
NAPCO Security Technologies Cyclically Adjusted PB Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, NAPCO Security Technologies's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where NAPCO Security Technologies's Cyclically Adjusted PB Ratio falls into.
NAPCO Security Technologies Cyclically Adjusted PB Ratio Calculation
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.
* 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 11.59 mean?
NAPCO Security Technologies (FRA:NS1) has a Cyclically Adjusted PB Ratio of 11.59 as of Aug. 20, 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 NAPCO Security Technologies and its competitors. This is near median its historical median of 10.70. Over the past decade, NAPCO Security Technologies' Cyclically Adjusted PB Ratio has ranged from 2.67 to 21.64. According to the industry distribution chart, NAPCO Security Technologies ranks #691 out of 719 companies in the Business Services industry, placing it in the top 96.1%.
Is NAPCO Security Technologies' Cyclically Adjusted PB Ratio too high?
NAPCO Security Technologies' current Cyclically Adjusted PB Ratio of 11.59 is near median its 10-year median of 10.70. Over the past 10 years, this metric has ranged from a low of 2.67 to a high of 21.64. The Business Services industry median Cyclically Adjusted PB Ratio is 1.53. NAPCO Security Technologies' value of 11.59 is 657.5% above this industry median. Based on the distribution chart, NAPCO Security Technologies ranks #691 out of 719 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, NAPCO Security Technologies has a GF Score™ of 99/100, reflecting its overall financial health beyond just this single metric.
How does NAPCO Security Technologies' Cyclically Adjusted PB Ratio compare to EVLV and MG?
According to the Business Services industry distribution chart, NAPCO Security Technologies ranks #691 out of 719 companies for Cyclically Adjusted PB Ratio. This places NAPCO Security Technologies in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.53. NAPCO Security Technologies' value of 11.59 is 657.5% above this benchmark. Historically, NAPCO Security Technologies' own Cyclically Adjusted PB Ratio has ranged from 2.67 to 21.64 over the past decade. While the company's 10-year median is 10.70 vs. the industry median of 1.53, NAPCO Security Technologies 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 Business Services company?
The median Cyclically Adjusted PB Ratio among Business Services companies is 1.53, based on 719 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. NAPCO Security Technologies's current Cyclically Adjusted PB Ratio of 11.59 is 657.5% 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 NAPCO Security Technologies and its competitors. For the Business Services industry, the median Cyclically Adjusted PB Ratio is 1.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. NAPCO Security Technologies's current Cyclically Adjusted PB Ratio is 11.59, which is near median its own 10-year median of 10.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is NAPCO Security Technologies stock overvalued right now?
NAPCO Security Technologies (FRA:NS1) has a current Cyclically Adjusted PB Ratio of 11.59. The stock's GF Value™ is €36.84, compared to a current price of €32.23 — trading 12.5% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 11.59, which is near median its 10-year median of 10.70 and 657.5% above the Business Services industry median of 1.53. NAPCO Security Technologies' overall GF Score™ is 99/100. 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 NAPCO Security Technologies (FRA:NS1), the current Cyclically Adjusted PB Ratio is 11.59 as of Aug. 20, 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 NAPCO Security Technologies (FRA:NS1) Overvalued in 2026?
Based on GuruFocus' analysis, NAPCO Security Technologies stock appears to be undervalued.
The current stock price of €32.23 is trading 12.5% below its estimated GF Value™ of €36.84.
Key valuation signals for FRA:NS1:
Cyclically Adjusted PB Ratio: 11.59 (near median its 10-year median of 10.70)
GF Value™: €36.84 vs. price of €32.23 (12.5% below fair value)
Industry Position: 657.5% above the Business Services median (#691 of 719)
No single metric tells the full story. See the FRA:NS1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
NAPCO Security Technologies Inc manufactures security products, encompassing access control systems, door-locking products, intrusion and fire alarm systems and video surveillance products. Its products are used for various applications which includes alarm systems like automatic communicators, combination control panels/digital communicators and digital keypad systems, fire alarm control panel and area detectors mainly used for commercial, residential, institutional, industrial and governmental uses. Geographically, the company derives a majority of its revenue from the United States.
99GF Score
Get the complete analysis for FRA:NS1
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
FRA:NS1 has been successfully added to your 
