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NAPCO Security Technologies (NSSC) Stock Chart & Stock Price History

NAPCO Security Technologies logo
$36.13 +0.18 (+0.50%)
Closing price 09/18/2026 04:00 PM Eastern
Extended Trading
$36.13 0.00 (0.00%)
As of 09/18/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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NAPCO Security Technologies Stock Price Performance

The NAPCO Security Technologies (NSSC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 15.25%, with a year-to-date return of -13.36%. In the past month, the stock has decreased 4.42%, reflecting recent market activity.

As of the latest close, NAPCO Security Technologies traded at $36.13 with a market cap of $1.29 billion and volume of 677,826 shares. Five years ago, the stock traded at a split-adjusted price of $20.65, representing a 74.96% increase over that period. At the time, it had a market cap of $757.90 million and a volume of 110,737 shares.

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5 Day
Performance
+0.75%
1 Month
Performance
-4.42%
3 Month
Performance
-3.37%
Year-To-Date
Performance
-13.36%
1 Year
Performance
-15.25%
5 Year
Performance
+74.96%

NSSC Stock Chart for Saturday, September, 19, 2026

NSSC Chart by TradingView

NAPCO Security Technologies Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/18/2026$35.95$36.13
+0.50%		$36.21$35.59677,826 shs$1.29 billion
09/17/2026$36.33$35.95
-1.05%		$36.95$35.33467,742 shs$1.29 billion
09/16/2026$35.95$36.33
+1.06%		$36.38$35.79433,787 shs$1.30 billion
09/15/2026$35.86$35.95
+0.25%		$36.14$35.36358,722 shs$1.29 billion
09/14/2026$36.26$35.86
-1.10%		$36.17$35.44303,071 shs$1.28 billion
09/11/2026$35.51$36.26
+2.11%		$36.32$35.51329,923 shs$1.30 billion
09/10/2026$35.91$35.51
-1.11%		$36.12$35.43251,184 shs$1.27 billion
09/09/2026$37.08$35.91
-3.16%		$37.06$35.72343,730 shs$1.28 billion
09/08/2026$37.01$37.08
+0.19%		$37.24$36.49405,627 shs$1.33 billion
09/07/2026$37.01$37.01$37.48$36.19448,490 shs$1.32 billion
09/04/2026$37.05$37.01
-0.11%		$37.48$36.19448,490 shs$1.32 billion
09/03/2026$35.65$37.05
+3.93%		$37.22$35.43476,927 shs$1.33 billion
09/02/2026$35.24$35.65
+1.16%		$36.61$35.45390,879 shs$1.28 billion
09/01/2026$36.24$35.24
-2.76%		$36.37$34.94520,068 shs$1.26 billion
08/31/2026$35.35$36.24
+2.52%		$36.48$35.05539,068 shs$1.30 billion
08/28/2026$35.28$35.35
+0.20%		$36.14$34.65435,702 shs$1.26 billion
08/27/2026$35.73$35.28
-1.26%		$35.40$33.911.12 million shs$1.26 billion
08/26/2026$36.43$35.73
-1.92%		$36.40$35.23657,371 shs$1.28 billion
08/25/2026$37.59$36.43
-3.09%		$37.95$35.80684,527 shs$1.30 billion
08/24/2026$38.09$37.59
-1.31%		$51.77$36.382.34 million shs$1.34 billion
08/21/2026$37.77$38.09
+0.85%		$38.29$37.21349,529 shs$1.36 billion
08/20/2026$37.80$37.77
-0.08%		$38.29$37.46316,142 shs$1.35 billion
08/19/2026$37.81$37.80
-0.03%		$38.25$37.70276,731 shs$1.35 billion
08/18/2026$38.06$37.81
-0.66%		$37.97$37.13270,420 shs$1.35 billion
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This page (NASDAQ:NSSC) was last updated on 9/18/2026 by MarketBeat.com Staff.
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