NAPCO Security Technologies - 15 Year Stock Price History | NSSC

Historical daily share price chart and data for NAPCO Security Technologies since 2011 adjusted for splits and dividends. The latest closing stock price for NAPCO Security Technologies as of September 18, 2026 is 36.13.
  • The all-time high NAPCO Security Technologies stock closing price was 55.97 on August 19, 2024.
  • The NAPCO Security Technologies 52-week high stock price is 51.77, which is 43.3% above the current share price.
  • The NAPCO Security Technologies 52-week low stock price is 33.91, which is 6.1% below the current share price.
  • The average NAPCO Security Technologies stock price for the last 52 weeks is 40.37.
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NAPCO Security Technologies Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2026 39.3385 40.8678 46.6453 34.6494 36.1300 -12.27%
2025 32.1827 33.9918 43.7079 19.3504 41.1838 19.22%
2024 41.6241 32.3915 55.9699 31.0943 34.5455 4.97%
2023 29.5186 25.8318 38.4301 17.6049 32.9104 25.59%
2022 22.2710 23.3002 29.5889 15.0662 26.2037 9.96%
2021 17.8942 12.4773 24.5779 12.3581 23.8294 90.62%
2020 11.3939 14.5751 15.5763 6.5271 12.5011 -10.79%
2019 12.2537 7.3996 16.4393 6.9657 14.0125 86.60%
2018 6.2371 4.1241 8.2864 4.1241 7.5093 80.00%
2017 4.4776 4.0288 5.1015 3.5758 4.1718 2.94%
2016 3.1801 2.8130 4.0765 2.4697 4.0526 44.07%
2015 2.7203 2.2409 3.4948 2.2075 2.8130 25.53%
2014 2.6273 2.9322 3.6092 1.9405 2.2409 -25.16%
2013 2.2695 1.7355 3.0943 1.6687 2.9942 72.53%
2012 1.4439 1.1919 1.7450 1.0918 1.7355 46.78%
Sector Industry Market Cap Revenue
Industrial Products Protection - Safety Equipment & Services $1.286B $0.202B
NAPCO SECURITY SYSTEMS is engaged in the development, manufacture, distribution and sale of security alarm products and door security devices for commercial and residential installations.
Stock Name Country Market Cap PE Ratio
Assa Abloy AB (ASAZY) Sweden $38.985B 22.18
Halma (HLMAF) United Kingdom $17.907B 0.00
Allegion (ALLE) Ireland $13.064B 18.20
MSA Safety Incorporporated (MSA) United States $6.894B 20.52
ADT (ADT) United States $5.107B 8.13
Brady (BRC) United States $3.997B 16.14
Life360 (LIF) United States $3.284B 115.14
Resideo Technologies (REZI) United States $2.812B 7.29
Alarm Holdings (ALRM) United States $2.683B 21.79
ADI Global Distribution Inc (ADIG) United States $1.639B 0.00
Cadre Holdings (CDRE) United States $1.118B 27.47
Ituran Location And Control (ITRN) Israel $1.049B 16.27
ICTS (ICTSF) Netherlands $0.204B 0.00
Eastern (EML) United States $0.148B 35.23
Concorde Group (YOOV) Singapore $0.114B 0.00
Lakeland Industries (LAKE) United States $0.104B 0.00
Concorde Group (CIGL) Singapore $0.096B 0.00
Wrap Technologies (WRAP) United States $0.088B 0.00
SoundThinking (SSTI) United States $0.076B 0.00
Mobilicom (MOB) Israel $0.060B 0.00
SuperCom (SPCB) Israel $0.054B 5.79
WISeKey Holding (WKEY) Switzerland $0.048B 0.00
Intellicheck Mobilisa (IDN) United States $0.048B 15.80
Senstar Technologies (SNT) Canada $0.037B 79.75
Rectitude Holdings (RECT) Singapore $0.020B 0.00
Cycurion (CYCU) United States $0.011B 0.00
Guardforce AI (GFAI) Singapore $0.010B 0.00
Our Bond (OBAI) United States $0.009B 0.00
Digital Ally/NV (DGLY) United States $0.002B 0.00
Hub Cyber Security (HUBC) Israel $0.001B 0.00