NAPCO Security Technologies - 44 Year Stock Price History | NSSC

The latest closing stock price for NAPCO Security Technologies as of August 27, 2025 is 38.41.

  • An investor who bought $1,000 worth of NAPCO Security Technologies stock at the IPO in 1981 would have $39,646 today, roughly 40 times their original investment - a 8.78% compound annual growth rate over 44 years.
  • The all-time high NAPCO Security Technologies stock closing price was 57.05 on August 19, 2024.
  • The NAPCO Security Technologies 52-week high stock price is 46.67, which is 21.5% above the current share price.
  • The NAPCO Security Technologies 52-week low stock price is 19.00, which is 50.5% below the current share price.
  • The average NAPCO Security Technologies stock price for the last 52 weeks is 31.67.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

NAPCO Security Technologies - 44 Year Stock Price History | NSSC

  • An investor who bought $1,000 worth of NAPCO Security Technologies stock at the IPO in 1981 would have $39,646 today, roughly 40 times their original investment - a 8.78% compound annual growth rate over 44 years.
  • The all-time high NAPCO Security Technologies stock closing price was 57.05 on August 19, 2024.
  • The NAPCO Security Technologies 52-week high stock price is 46.67, which is 21.5% above the current share price.
  • The NAPCO Security Technologies 52-week low stock price is 19.00, which is 50.5% below the current share price.
  • The average NAPCO Security Technologies stock price for the last 52 weeks is 31.67.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.