NSSC
Napco Security Technologies
PE ratio, current and historical analysis
- Stocks
- Industrials
- NASDAQ: NSSC
- PE Ratio
As of Nov 13, 2026, the Napco Security Technologies stock's PE ratio is 24.57. This results from the current EPS of $1.23 and stock price of $30.22. The P/E ratio has decreased by 24% from the past four quarters average of 32.4.
NSSC PE ratio history
The PE ratio of Napco Security Technologies has averaged 38.75 over the last ten years. The current PE ratio of 24.57 is 37% below the historical average. In the past ten years, NSSC's PE ratio was at its highest in the Mar 2021 quarter at 87.08, when the stock price was $17.42 and the EPS was $0.2. The lowest value was in the Mar 2020 quarter, when it reached 18.06 with a price of $7.59 and an EPS of $0.42.
Napco Security Technologies PE ratio by year
Maximum annual increase: 57.6% in 2017
Maximum annual decrease: -50.51% in 2012
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| 2026 | 31.39 | 26.88% | $37.98 | $1.21 |
| 2025 | 24.74 | -35.71% | $29.69 | $1.2 |
| 2024 | 38.48 | -17.81% | $51.95 | $1.35 |
| 2023 | 46.82 | 20.51% | $34.65 | $0.74 |
| 2022 | 38.85 | -10.28% | $20.59 | $0.53 |
| 2021 | 43.3 | -22.25% | $18.19 | $0.42 |
| 2020 | 55.69 | 27.58% | $11.7 | $0.21 |
| 2019 | 43.65 | 25.14% | $14.84 | $0.34 |
| 2018 | 34.88 | 11.33% | $7.33 | $0.21 |
| 2017 | 31.33 | 57.6% | $4.7 | $0.15 |
| 2016 | 19.88 | -9.8% | $3.18 | $0.16 |
| 2015 | 22.04 | -26.95% | $2.87 | $0.13 |
| 2014 | 30.17 | 0.97% | $2.72 | $0.09 |
| 2013 | 29.88 | 21.96% | $2.39 | $0.08 |
| 2012 | 24.5 | -50.51% | $1.47 | $0.06 |
Napco Security Technologies PE ratio by quarter (TTM)
| Year | PE ratio | PE change | Price | EPS |
|---|---|---|---|---|
| Sep 2026 | 28.96 | -7.74% | $35.62 | $1.23 |
| Jun 2026 | 31.39 | -17.13% | $37.98 | $1.21 |
| Mar 2026 | 37.88 | 20.83% | $39.39 | $1.04 |
| Dec 2025 | 31.35 | -9.5% | $41.7 | $1.33 |
| Sep 2025 | 34.64 | 40.02% | $42.95 | $1.24 |
| Jun 2025 | 24.74 | 33.3% | $29.69 | $1.2 |
| Mar 2025 | 18.56 | -31.11% | $23.02 | $1.24 |
| Dec 2024 | 26.94 | -8.77% | $35.56 | $1.32 |
| Sep 2024 | 29.53 | -23.26% | $40.46 | $1.37 |
| Jun 2024 | 38.48 | 21.7% | $51.95 | $1.35 |
| Mar 2024 | 31.62 | 8.03% | $40.16 | $1.27 |
| Dec 2023 | 29.27 | 23.66% | $34.25 | $1.17 |
| Sep 2023 | 23.67 | -49.44% | $22.25 | $0.94 |
| Jun 2023 | 46.82 | -19.02% | $34.65 | $0.74 |
| Mar 2023 | 57.82 | 1% | $37.58 | $0.65 |
NSSC Price vs fair value
NSSC average PE ratio chart
What this chart measures
The Historical Valuation Regime chart shows where the stock's current valuation sits relative to its own historical valuation range over the selected lookback period.
This is a history-relative tool, not a market-relative percentile. It does not compare the stock to other companies. Instead, it compares each historical valuation reading to the stock's own past readings.
Percentile logic
The threshold lines are calculated them from the stock's real historical values using percentile interpolation. That is why some colored bands are narrow while others are wide: the band widths reflect how the stock actually traded through time.
Regime map
| Historical percentile | Regime | Chart meaning |
|---|---|---|
| 0-10 | Historically Low | Deep cheap zone |
| >10-25 | Below Average | Cheap relative to history |
| >25-75 | Average | Within the normal historical range |
| >75-90 | Above Average | Expensive relative to history |
| >90-100 | Historically High | Extreme or stretched valuation |
How to read each part
| Chart element | What it tells you |
|---|---|
| Main line | The actual historical valuation values over time for the selected metric. |
| Dashed horizontal lines | The stock's computed P10, P25, Median, P75, and P90 thresholds for the selected period. |
| Colored bands | The historical valuation zones between those thresholds. |
| Metric boxes | Current ratio, historical median, current percentile, and current regime. |
| Timeline strip | A condensed regime history showing how the stock moved between cheap, fair, and expensive states across each observation. |
Important metric definitions
Current Percentile is the percentile rank of the latest valid historical observation within the selected lookback range.
Current Regime is assigned directly from the latest observation's percentile bucket using the fixed 10 / 25 / 75 / 90 cutoffs shown above.
How to use it well
This chart is most useful for answering a narrow question: Is this stock trading high, low, or normal relative to its own history? It works best alongside growth, profitability, and forward-looking business analysis, because a stock can deserve a higher or lower regime if its business quality has changed.
The current PE ratio of NSSC is lower than the 3, 5 and 10-year averages.
PE comparison
With a P/E of 24.57, NSSC stands above the Industrials sector and the industry average. But compared to its Industrials sector average of 23.75, Napco Security Technologies's P/E is only 3.5% higher.
NSSC PE vs peers
Frequently asked questions
What is Napco Security Technologies's PE ratio?
NSSC stock has a price to earnings ratio of 24.57 as of Nov 13, 2026.
What is the 3-year average PE ratio for Napco Security Technologies (NSSC)?
The 3-year average PE ratio for NSSC stock is 30.28.
What is the 5-year average PE ratio for Napco Security Technologies (NSSC)?
The 5-year average PE ratio for NSSC stock is 37.61.
What is the highest PE ratio for NSSC?
The highest quarterly PE ratio in the last ten years has been 87.08 and it was in the Mar 2021 quarter.
How does the current PE ratio for NSSC compare to its historical average?
NSSC's price to earnings ratio is currently 37% below its 10-year historical average.
How is NSSC's PE ratio calculated (Napco Security Technologies PE ratio formula)?
To determine the PE ratio, divide the most recent stock price by the TTM earnings per share (EPS). As of today (Nov 13, 2026), Napco Security Technologies's stock price is $30.22. The earnings per share for the trailing twelve months (TTM) ending Sep 2026 is $1.23. Therefore, Napco Security Technologies's P/E ratio for today is 24.57. PE RATIO(24.57) = STOCK PRICE($30.22) / TTM EPS($1.23)
All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.