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NAPCO Security TechnologiesNSSC +0.62%99 PE Ratio (TTM) is 36.60 as of Aug. 19, 2026, which is 2% above its 10-year median of 36.02. GuruFocus rates NSSC with a GF Score™ of 99/100 and a GF Value™ of $43.03 (Modestly Undervalued). Among 786 Business Services companies, NAPCO Security Technologies ranks worse than 83.21% on this metric.
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). As of today (2026-08-19), NAPCO Security Technologies's share price is
$38.06.
NAPCO Security Technologies's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 was $1.04. Therefore, NAPCO Security Technologies's PE Ratio (TTM) for today is 36.60.
The historical rank and industry rank for NAPCO Security Technologies's PE Ratio (TTM) or its related term are showing as below:
NSSC'
s PE Ratio (TTM) Range Over the Past 10 Years
Min: 16.62 Med: 36.02 Max: 85.56
Current: 36.6
During the past 13 years, the highest PE Ratio (TTM) of NAPCO Security Technologies was 85.56. The lowest was 16.62. And the median was 36.02.
NSSC's PE Ratio (TTM) is ranked worse than 83.21% of 786
companies
in the Business Services industry
Industry Median: 15.54
vs NSSC: 36.60
During the past 12 months, NAPCO Security Technologies's average EPS without NRIGrowth Rate was 18.00% per year.
During the past 3 years, the average EPS without NRIGrowth Rate was 39.90% per year.
During the past 5 years, the average EPS without NRIGrowth Rate was 40.20% per year.
During the past 10 years, the average EPS without NRIGrowth Rate was 27.10% per year.
During the past 13 years, NAPCO Security Technologies's highest 3-Year average EPS without NRI Growth Rate was 344.80% per year. The lowest was -71.50% per year. And the median was 17.90% per year.
NAPCO Security Technologies (NAS:NSSC) PE Ratio (TTM) Explanation
The PE Ratio (TTM) can be viewed as the number of years it takes for the company to earn back the price you pay for the stock. For example, if a company earns $2 a share per year, and the stock is traded at $30, the PE Ratio (TTM) is 15. Therefore it takes 15 years for the company to earn back the $30 you paid for its stock, assuming the earnings stays constant over the next 15 years.
In real business, earnings never stay constant. If a company can grow its earnings, it takes fewer years for the company to earn back the price you pay for the stock. If a company's earnings decline it takes more years. As a shareholder, you want the company to earn back the price you pay as soon as possible. Therefore, lower P/E stocks are more attractive than higher P/E stocks so long as the PE Ratio (TTM) is positive. Also for stocks with the same PE Ratio (TTM), the one with faster growth business is more attractive.
If a company loses money, the PE Ratio (TTM) becomes meaningless.
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the PE Ratio (TTM) divided by the growth ratio. He thinks a company with a PE Ratio (TTM) equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a PE Ratio (TTM) of 20, instead of a company growing 10% a year with a PE Ratio (TTM) of 10.
Because the PE Ratio (TTM) measures how long it takes to earn back the price you pay, the PE Ratio (TTM) can be applied to the stocks across different industries. That is why it is the one of the most important and widely used indicators for the valuation of stocks.
Investors need to be aware that the PE Ratio (TTM) can be misleading a lot of times, especially when the underlying business is cyclical and unpredictable. As Peter Lynch pointed out, cyclical businesses have higher profit margins at the peaks of the business cycles. Their earnings are high and PE Ratio (TTM)s are artificially low. It is usually a bad idea to buy a cyclical business when the PE Ratio (TTM) is low. A better ratio to identify the time to buy a cyclical businesses is the PS Ratio .
PE Ratio (TTM) can also be affected by non-recurring-items such as the sale of part of businesses. This may increase for the current year or quarter dramatically. But it cannot be repeated over and over. Therefore PE Ratio without NRI is a more accurate indication of valuation than PE Ratio (TTM).
NAPCO Security Technologies PE Ratio (TTM) Related Terms
NAPCO Security Technologies PE Ratio (TTM) 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 Security & Protection Services subindustry, NAPCO Security Technologies's PE Ratio (TTM), along with its competitors' market caps and PE Ratio (TTM) 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 PE Ratio (TTM) vs Business Services Industry
For the Business Services industry and Industrials sector, NAPCO Security Technologies's PE Ratio (TTM) distribution charts can be found below:
* The bar in red indicates where NAPCO Security Technologies's PE Ratio (TTM) falls into.
NAPCO Security Technologies PE Ratio (TTM) Calculation
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). It is the most widely used ratio in the valuation of stocks.
NAPCO Security Technologies's Share Price of today is $38.06.
NAPCO Security Technologies's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $1.04.
* 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.
It can also be calculated from the numbers for the whole company:
There are at least three kinds of PE Ratio (TTM)s used by different investors. They are Trailing Twelve Month PE Ratio (TTM) or PE Ratio (TTM) (TTM), Forward PE Ratio, or PE Ratio without NRI. A new PE Ratio (TTM) based on inflation-adjusted normalized PE Ratio (TTM) is called Shiller PE Ratio, after Yale professor Robert Shiller.
In the calculation of PE Ratio (TTM), the earnings per share used are the earnings per share over the past 12 months. For Forward PE Ratio, the earnings are the expected earnings for the next twelve months. In the case of PE Ratio without NRI, the reported earnings less the non-recurring items are used.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. Since it looks at the average over the last 10 years, Shiller PE Ratio is also called PE10.
NAPCO Security Technologies (NSSC) has a PE Ratio (TTM) of 36.60 as of Aug. 19, 2026. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on NAPCO Security Technologies and its competitors. This is near median its historical median of 36.02. Over the past decade, NAPCO Security Technologies' PE Ratio (TTM) has ranged from 16.62 to 85.56. According to the industry distribution chart, NAPCO Security Technologies ranks #654 out of 786 companies in the Business Services industry, placing it in the top 83.2%.
Is NAPCO Security Technologies' PE Ratio (TTM) too high?
NAPCO Security Technologies' current PE Ratio (TTM) of 36.60 is near median its 10-year median of 36.02. Over the past 10 years, this metric has ranged from a low of 16.62 to a high of 85.56. The Business Services industry median PE Ratio (TTM) is 15.54. NAPCO Security Technologies' value of 36.60 is 135.5% above this industry median. Based on the distribution chart, NAPCO Security Technologies ranks #654 out of 786 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 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does NAPCO Security Technologies' PE Ratio (TTM) compare to EVLV and MG?
According to the Business Services industry distribution chart, NAPCO Security Technologies ranks #654 out of 786 companies for PE Ratio (TTM). This places NAPCO Security Technologies in the lower half of its industry. The industry median PE Ratio (TTM) is 15.54. NAPCO Security Technologies' value of 36.60 is 135.5% above this benchmark. Historically, NAPCO Security Technologies' own PE Ratio (TTM) has ranged from 16.62 to 85.56 over the past decade. While the company's 10-year median is 36.02 vs. the industry median of 15.54, 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 PE Ratio (TTM) for a Business Services company?
The median PE Ratio (TTM) among Business Services companies is 15.54, based on 786 companies in the industry. Companies in the top quartile (top 25%) have a PE Ratio (TTM) significantly above this median, while those in the bottom quartile fall well below. However, PE Ratio (TTM) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. NAPCO Security Technologies's current PE Ratio (TTM) of 36.60 is 135.5% 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 PE Ratio (TTM) mean?
A high PE Ratio (TTM) can signal that a stock is expensive relative to its fundamentals. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on NAPCO Security Technologies and its competitors. For the Business Services industry, the median PE Ratio (TTM) is 15.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. NAPCO Security Technologies's current PE Ratio (TTM) is 36.60, which is near median its own 10-year median of 36.02. 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?
Based on GuruFocus' analysis, NAPCO Security Technologies (NSSC) is currently considered Modestly Undervalued. The stock's GF Value™ is $43.03, compared to a current price of $38.06 — trading 11.6% below its estimated fair value. The current PE Ratio (TTM) is 36.60, which is near median its 10-year median of 36.02 and 135.5% above the Business Services industry median of 15.54. 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 PE Ratio (TTM) calculated?
PE Ratio (TTM) is calculated from a company's financial statements. For NAPCO Security Technologies (NSSC), the current PE Ratio (TTM) is 36.60 as of Aug. 19, 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 (NSSC) Overvalued in 2026?
Based on GuruFocus' analysis, NAPCO Security Technologies stock appears to be undervalued.
The current stock price of $38.06 is trading 11.6% below its estimated GF Value™ of $43.03.
GuruFocus considers NAPCO Security Technologies to be Modestly Undervalued.
Key valuation signals for NSSC:
PE Ratio (TTM): 36.60 (near median its 10-year median of 36.02)
GF Value™: $43.03 vs. price of $38.06 (11.6% below fair value)
Industry Position: 135.5% above the Business Services median (#654 of 786)
No single metric tells the full story. See the NSSC 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
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PE Ratio (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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