NAPCO Security Technologies Stock Price History
NASDAQ: NSSCTelecommunicationsTelecommunications EquipmentUSD
36.14+0.98 (+2.79%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
NSSC price history at a glance
The price history for NAPCO Security Technologies (NSSC) on this page begins on December 28, 1981, when the stock closed at $0.2743; it most recently closed at $36.14 on October 5, 2026. The highest price in this record is $58.09, reached on August 19, 2024; the latest close is 37.8% below that peak. Across the 44 complete calendar years in the table, NSSC finished higher in 29 and lower in 15. Its best year was 2004 (+266.6%) and its worst was 2008 (-76.9%).
Over roughly 45 years the share price changed +13075.4%, a 11.5% compound annual price return (excluding dividends). In the last 12 months alone, NSSC has lost 15.7%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1981
- $58.09
- Date of high
- Aug 19, 2024
- Low since 1981
- $0.1029
- Date of low
- Jan 17, 1983
- 52-week high
- $51.77
- 52-week low
- $33.91
- Last close
- $36.14
NSSC returns
1 week
-0.08%
1 month
+0.64%
3 months
+0.19%
6 months
-15.46%
Year to date
-13.33%
1 year
-15.74%
3 years
+77.42%
5 years
+62.06%
NSSC price return, excluding dividends.
NSSC annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 36.14 | -12.66% |
| 2025 | 41.38 | +15.91% |
| 2024 | 35.70 | +4.23% |
| 2023 | 34.25 | +24.64% |
| 2022 | 27.48 | +9.96% |
| 2021 | 24.99 | +90.62% |
| 2020 | 13.11 | -14.54% |
| 2019 | 15.34 | +106.74% |
| 2018 | 7.42 | +69.60% |
| 2017 | 4.38 | +2.94% |
| 2016 | 4.25 | +44.07% |
| 2015 | 2.95 | +25.53% |
| 2014 | 2.35 | -24.19% |
| 2013 | 3.10 | +72.70% |
| 2012 | 1.80 | +44.76% |
| 2011 | 1.24 | +40.91% |
| 2010 | 0.88 | +5.39% |
| 2009 | 0.835 | +35.77% |
| 2008 | 0.615 | -76.92% |
| 2007 | 2.67 | -9.20% |
| 2006 | 2.94 | -15.01% |
| 2005 | 3.45 | +17.46% |
| 2004 | 2.94 | +266.63% |
| 2003 | 0.8019 | -12.87% |
| 2002 | 0.9204 | +68.48% |
| 2001 | 0.5463 | +65.60% |
| 2000 | 0.3299 | +11.79% |
| 1999 | 0.2951 | -20.33% |
| 1998 | 0.3704 | -33.33% |
| 1997 | 0.5556 | +60.02% |
| 1996 | 0.3472 | +7.13% |
| 1995 | 0.3241 | +21.75% |
| 1994 | 0.2662 | -36.12% |
| 1993 | 0.4167 | +71.41% |
| 1992 | 0.2431 | +16.71% |
| 1991 | 0.2083 | -18.19% |
| 1990 | 0.2546 | -50.01% |
| 1989 | 0.5093 | -56.00% |
| 1988 | 1.16 | +75.44% |
| 1987 | 0.6597 | -24.01% |
| 1986 | 0.8681 | -8.53% |
| 1985 | 0.9491 | +77.40% |
| 1984 | 0.535 | +44.44% |
| 1983 | 0.3704 | +177.04% |
| 1982 | 0.1337 | -51.26% |
| 1981* | 0.2743 | 0.00% |
* Partial year: the record begins after the start of 1981; return measured from the first available close.
2026 return is year to date.
NSSC daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 35.38 | 36.24 | 35.10 | 36.14 | +2.79% | |
| 35.32 | 35.34 | 34.72 | 35.16 | -0.09% | |
| 36.12 | 36.51 | 34.79 | 35.19 | -3.96% | |
| 36.49 | 36.67 | 36.25 | 36.64 | +1.16% | |
| 36.17 | 36.50 | 35.84 | 36.22 | +0.14% | |
| 36.76 | 36.76 | 36.16 | 36.17 | -0.06% | |
| 35.69 | 36.50 | 35.41 | 36.19 | +1.60% | |
| 35.64 | 35.74 | 35.35 | 35.62 | +0.14% | |
| 35.04 | 35.59 | 34.85 | 35.57 | +1.45% | |
| 35.32 | 35.52 | 34.52 | 35.06 | -1.68% | |
| 35.74 | 36.24 | 35.47 | 35.66 | -0.06% | |
| 35.88 | 35.88 | 34.86 | 35.68 | -0.78% | |
| 35.76 | 36.21 | 35.39 | 35.96 | +0.22% | |
| 36.33 | 36.47 | 35.63 | 35.88 | +0.17% | |
| 36.31 | 36.31 | 35.60 | 35.82 | -0.86% | |
| 35.89 | 36.21 | 35.59 | 36.13 | +0.50% | |
| 36.95 | 36.95 | 35.33 | 35.95 | -1.05% | |
| 36.04 | 36.38 | 35.79 | 36.33 | +1.06% | |
| 35.81 | 36.14 | 35.36 | 35.95 | +0.25% | |
| 35.76 | 36.17 | 35.44 | 35.86 | -1.10% | |
| 35.51 | 36.32 | 35.51 | 36.26 | +2.11% | |
| 35.70 | 36.12 | 35.43 | 35.51 | -1.11% | |
| 36.70 | 37.06 | 35.72 | 35.91 | -3.18% | |
| 36.91 | 37.24 | 36.49 | 37.09 | +0.22% | |
| 36.94 | 37.48 | 36.19 | 37.01 | -0.11% | |
| 35.86 | 37.22 | 35.43 | 37.05 | +3.93% | |
| 35.45 | 36.61 | 35.45 | 35.65 | +1.16% | |
| 36.00 | 36.37 | 34.94 | 35.24 | -2.76% | |
| 35.35 | 36.48 | 35.05 | 36.24 | +2.52% | |
| 35.38 | 36.14 | 34.65 | 35.35 | +0.20% | |
| 34.68 | 35.40 | 33.91 | 35.28 | -1.26% | |
| 35.87 | 36.40 | 35.23 | 35.73 | -1.92% | |
| 37.44 | 37.95 | 35.80 | 36.43 | -3.09% | |
| 46.16 | 51.77 | 36.38 | 37.59 | -1.31% | |
| 37.97 | 38.29 | 37.21 | 38.09 | +0.85% | |
| 37.46 | 38.29 | 37.46 | 37.77 | -0.08% | |
| 38.15 | 38.25 | 37.70 | 37.80 | -0.03% | |
| 37.66 | 37.97 | 37.13 | 37.81 | -0.66% | |
| 38.06 | 38.34 | 37.94 | 38.06 | -0.68% | |
| 38.30 | 38.47 | 37.86 | 38.32 | +0.16% | |
| 39.23 | 39.62 | 38.22 | 38.26 | -1.57% | |
| 39.91 | 40.11 | 38.67 | 38.87 | -1.87% | |
| 40.21 | 40.88 | 39.38 | 39.61 | -1.00% | |
| 40.94 | 41.43 | 39.93 | 40.01 | -3.26% | |
| 40.84 | 41.62 | 40.68 | 41.36 | +1.08% | |
| 40.13 | 41.19 | 40.13 | 40.92 | +1.44% | |
| 40.30 | 40.55 | 39.97 | 40.34 | +0.30% | |
| 38.63 | 40.31 | 38.35 | 40.22 | +5.59% | |
| 37.27 | 38.33 | 37.18 | 38.09 | +2.72% | |
| 36.31 | 37.19 | 36.08 | 37.08 | +1.95% | |
| 36.68 | 36.85 | 35.88 | 36.37 | 0.00% | |
| 36.88 | 37.62 | 36.02 | 36.37 | -2.36% | |
| 36.34 | 37.36 | 36.26 | 37.25 | +2.34% | |
| 36.08 | 36.57 | 35.68 | 36.40 | +1.85% | |
| 36.03 | 36.25 | 35.53 | 35.74 | +0.22% | |
| 34.96 | 35.80 | 34.95 | 35.66 | +0.25% | |
| 35.96 | 36.48 | 35.35 | 35.57 | -1.69% | |
| 36.24 | 36.54 | 35.44 | 36.18 | +0.36% | |
| 36.21 | 36.56 | 35.92 | 36.05 | -0.19% | |
| 36.15 | 36.88 | 36.09 | 36.12 | -1.50% | |
| 35.33 | 36.73 | 35.33 | 36.67 | +3.12% | |
| 35.87 | 36.31 | 35.49 | 35.56 | -0.95% | |
| 36.12 | 36.12 | 35.54 | 35.90 | +0.45% | |
| 35.93 | 36.30 | 35.62 | 35.74 | -0.91% | |
| 36.28 | 36.38 | 35.56 | 36.07 | -0.06% | |
| 37.20 | 37.61 | 34.20 | 36.09 | -5.23% | |
| 38.02 | 38.56 | 37.66 | 38.08 | -0.83% | |
| 38.81 | 38.87 | 37.94 | 38.40 | -1.99% | |
| 37.97 | 39.24 | 37.80 | 39.18 | +3.68% | |
| 38.11 | 38.41 | 37.22 | 37.79 | -0.18% | |
| 37.98 | 38.66 | 37.69 | 37.86 | -0.32% | |
| 37.42 | 38.18 | 37.27 | 37.98 | +1.85% | |
| 37.07 | 37.45 | 36.67 | 37.29 | 0.00% | |
| 37.00 | 37.67 | 36.73 | 37.29 | -0.35% | |
| 38.03 | 38.38 | 37.34 | 37.42 | 0.00% | |
| 37.29 | 38.38 | 37.21 | 37.42 | -0.19% | |
| 37.22 | 38.31 | 37.05 | 37.49 | -0.03% | |
| 36.93 | 37.61 | 36.32 | 37.50 | +0.29% | |
| 36.85 | 38.02 | 36.55 | 37.39 | +3.69% | |
| 37.52 | 37.99 | 36.04 | 36.06 | -3.81% | |
| 37.82 | 38.43 | 37.26 | 37.49 | -0.21% | |
| 37.88 | 38.23 | 37.46 | 37.57 | +0.94% | |
| 36.43 | 37.62 | 36.08 | 37.22 | +2.17% | |
| 35.46 | 36.56 | 35.16 | 36.43 | +3.41% | |
| 35.05 | 35.61 | 34.72 | 35.23 | +0.26% | |
| 35.08 | 36.02 | 34.32 | 35.14 | +0.37% | |
| 35.48 | 35.48 | 34.72 | 35.01 | +0.14% | |
| 35.54 | 35.70 | 34.90 | 34.96 | -2.26% | |
| 36.11 | 36.42 | 35.72 | 35.77 | -0.61% | |
| 36.01 | 36.33 | 35.72 | 35.99 | -0.58% | |
| 35.27 | 36.42 | 35.27 | 36.20 | +2.64% | |
| 36.92 | 37.46 | 34.76 | 35.27 | -6.02% | |
| 36.82 | 37.55 | 36.50 | 37.53 | +2.07% | |
| 36.04 | 36.90 | 35.25 | 36.77 | +1.69% | |
| 37.18 | 37.32 | 36.06 | 36.16 | -2.51% | |
| 37.52 | 38.07 | 37.00 | 37.09 | -0.86% | |
| 36.96 | 37.51 | 36.83 | 37.41 | +1.96% | |
| 36.58 | 37.29 | 36.12 | 36.69 | -0.08% | |
| 36.09 | 37.06 | 35.66 | 36.72 | +2.51% | |
| 36.05 | 36.29 | 35.22 | 35.82 | -0.72% | |
| 36.92 | 36.92 | 35.73 | 36.08 | -0.39% | |
| 37.00 | 37.42 | 35.91 | 36.22 | -3.46% | |
| 38.39 | 39.22 | 37.47 | 37.52 | -0.98% | |
| 38.34 | 38.82 | 37.25 | 37.89 | -1.04% | |
| 39.93 | 39.93 | 38.17 | 38.29 | -4.77% | |
| 40.77 | 41.12 | 39.96 | 40.21 | -1.49% | |
| 42.06 | 42.06 | 40.52 | 40.82 | -1.83% | |
| 41.60 | 42.61 | 41.05 | 41.58 | +0.82% | |
| 42.49 | 42.59 | 40.81 | 41.24 | -1.39% | |
| 39.61 | 42.20 | 39.59 | 41.82 | +5.58% | |
| 46.14 | 46.52 | 39.16 | 39.61 | -15.22% | |
| 46.85 | 47.20 | 46.00 | 46.72 | -0.06% | |
| 45.45 | 46.78 | 45.05 | 46.75 | +3.47% | |
| 45.62 | 45.67 | 44.76 | 45.18 | -1.03% | |
| 45.93 | 46.16 | 44.76 | 45.65 | -0.95% | |
| 45.91 | 46.35 | 45.43 | 46.09 | +0.39% | |
| 45.12 | 45.95 | 44.68 | 45.91 | +2.30% | |
| 45.62 | 45.81 | 44.59 | 44.88 | -0.91% | |
| 45.80 | 46.10 | 44.88 | 45.29 | -0.83% | |
| 45.89 | 46.45 | 45.48 | 45.67 | -0.52% | |
| 45.38 | 46.27 | 45.36 | 45.91 | +1.17% | |
| 45.52 | 46.05 | 44.75 | 45.38 | +1.54% | |
| 44.21 | 44.74 | 43.83 | 44.69 | +1.09% | |
| 43.90 | 44.31 | 43.35 | 44.21 | +0.09% | |
| 44.59 | 45.09 | 43.49 | 44.17 | +0.39% | |
| 42.50 | 44.03 | 42.41 | 44.00 | +2.92% | |
| 42.24 | 42.86 | 41.81 | 42.75 | +1.59% | |
| 42.40 | 42.71 | 41.96 | 42.08 | -1.20% | |
| 43.47 | 43.97 | 42.53 | 42.59 | +2.60% | |
| 40.00 | 41.61 | 40.00 | 41.51 | +3.16% | |
| 39.75 | 40.32 | 39.28 | 40.24 | +0.93% | |
| 38.25 | 39.92 | 38.25 | 39.87 | +1.06% | |
| 39.72 | 40.22 | 39.41 | 39.45 | +0.15% | |
| 38.45 | 39.61 | 38.23 | 39.39 | +3.93% | |
| 38.84 | 38.84 | 37.51 | 37.90 | -1.07% | |
| 38.51 | 39.12 | 38.01 | 38.31 | -1.57% | |
| 40.74 | 41.03 | 38.52 | 38.92 | -6.22% | |
| 43.38 | 43.38 | 41.17 | 41.50 | -2.90% | |
| 42.13 | 43.41 | 41.96 | 42.74 | +0.16% | |
| 41.84 | 43.04 | 41.35 | 42.67 | +4.97% | |
| 42.38 | 42.38 | 40.49 | 40.65 | -3.95% | |
| 42.01 | 42.57 | 40.56 | 42.32 | -0.56% | |
| 43.38 | 43.46 | 42.05 | 42.56 | -2.36% | |
| 42.84 | 43.60 | 42.48 | 43.59 | +1.75% | |
| 43.14 | 43.92 | 42.65 | 42.84 | +0.63% | |
| 42.20 | 42.75 | 42.07 | 42.57 | +1.00% | |
| 41.56 | 42.41 | 40.97 | 42.15 | -0.94% | |
| 43.36 | 43.52 | 42.26 | 42.55 | -1.96% | |
| 42.85 | 44.51 | 42.76 | 43.40 | +0.81% | |
| 42.06 | 43.26 | 40.97 | 43.05 | +4.59% | |
| 41.95 | 42.14 | 40.94 | 41.16 | -3.36% | |
| 42.79 | 44.21 | 42.21 | 42.59 | -2.25% | |
| 43.54 | 43.94 | 42.76 | 43.57 | +0.79% | |
| 43.51 | 43.63 | 42.21 | 43.23 | -3.22% | |
| 45.65 | 45.76 | 44.40 | 44.67 | -4.16% | |
| 46.18 | 46.67 | 45.55 | 46.61 | -0.09% | |
| 47.29 | 47.30 | 46.19 | 46.65 | -1.23% | |
| 46.46 | 47.26 | 45.50 | 47.23 | +2.74% | |
| 46.17 | 47.16 | 45.52 | 45.97 | +0.22% | |
| 45.55 | 45.92 | 44.48 | 45.87 | +0.02% | |
| 44.81 | 46.08 | 44.62 | 45.86 | +1.96% | |
| 43.27 | 45.03 | 42.72 | 44.98 | +3.43% | |
| 44.15 | 44.57 | 43.32 | 43.49 | -1.45% | |
| 44.28 | 44.77 | 42.98 | 44.13 | -0.05% | |
| 42.73 | 45.43 | 42.39 | 44.15 | +3.66% | |
| 43.69 | 44.50 | 41.31 | 42.59 | -0.95% | |
| 42.61 | 43.16 | 42.01 | 43.00 | +0.87% | |
| 43.29 | 43.29 | 42.05 | 42.63 | -0.91% | |
| 43.33 | 44.27 | 43.00 | 43.02 | -1.44% | |
| 43.61 | 44.04 | 42.54 | 43.65 | +0.41% | |
| 43.50 | 43.55 | 41.71 | 43.47 | -0.59% | |
| 44.00 | 45.08 | 42.96 | 43.73 | -0.02% | |
| 41.60 | 43.93 | 41.52 | 43.74 | +6.63% | |
| 39.20 | 41.62 | 37.68 | 41.02 | +11.20% | |
| 38.16 | 39.09 | 36.56 | 36.89 | -3.68% | |
| 38.40 | 38.90 | 37.94 | 38.30 | -0.55% | |
| 38.49 | 38.96 | 37.97 | 38.51 | +0.08% | |
| 38.73 | 39.11 | 38.32 | 38.48 | -0.93% | |
| 38.54 | 39.34 | 38.37 | 38.84 | +0.80% | |
| 39.47 | 39.47 | 38.30 | 38.53 | -2.87% | |
| 38.62 | 40.39 | 38.55 | 39.67 | +3.98% | |
| 38.41 | 38.99 | 37.88 | 38.15 | +0.26% | |
| 37.71 | 38.77 | 37.66 | 38.05 | -1.42% | |
| 39.86 | 39.89 | 38.48 | 38.60 | -2.33% | |
| 39.61 | 40.03 | 39.23 | 39.52 | +0.08% | |
| 39.70 | 40.62 | 39.20 | 39.49 | 0.00% | |
| 42.68 | 43.19 | 39.43 | 39.49 | -6.91% | |
| 42.02 | 42.51 | 41.83 | 42.42 | +0.64% | |
| 42.30 | 42.69 | 41.95 | 42.15 | -0.24% | |
| 41.10 | 42.34 | 40.92 | 42.25 | +2.80% | |
| 41.99 | 41.99 | 40.90 | 41.10 | -2.56% | |
| 41.08 | 42.21 | 40.57 | 42.18 | +2.13% | |
| 41.64 | 42.13 | 41.00 | 41.30 | -0.19% | |
| 41.77 | 42.41 | 41.10 | 41.38 | -0.77% | |
| 42.03 | 42.46 | 41.61 | 41.70 | -0.71% | |
| 42.09 | 42.18 | 41.57 | 42.00 | -0.12% | |
| 42.70 | 43.08 | 41.69 | 42.05 | -1.66% | |
| 42.06 | 43.08 | 41.59 | 42.76 | +1.96% | |
| 42.16 | 42.32 | 41.75 | 41.94 | -0.59% | |
| 42.18 | 42.45 | 41.64 | 42.19 | -0.42% | |
| 42.98 | 43.42 | 42.35 | 42.37 | -1.47% | |
| 43.50 | 44.01 | 42.60 | 43.00 | -1.85% | |
| 43.48 | 43.90 | 42.68 | 43.81 | +1.86% | |
| 42.31 | 43.16 | 42.15 | 43.01 | +1.39% | |
| 41.50 | 42.63 | 41.21 | 42.42 | +2.22% | |
| 42.16 | 42.36 | 41.11 | 41.50 | -1.40% | |
| 42.91 | 42.91 | 40.99 | 42.09 | -2.30% | |
| 42.05 | 43.21 | 41.69 | 43.08 | +2.38% | |
| 41.23 | 42.79 | 41.01 | 42.08 | +1.57% | |
| 41.72 | 42.57 | 41.41 | 41.43 | -1.59% | |
| 41.73 | 42.28 | 41.39 | 42.10 | +1.91% | |
| 40.83 | 41.68 | 40.48 | 41.31 | +0.93% | |
| 40.79 | 41.55 | 40.28 | 40.93 | -0.22% | |
| 39.91 | 41.08 | 38.97 | 41.02 | +2.86% | |
| 38.19 | 39.92 | 37.91 | 39.88 | +5.47% | |
| 39.91 | 39.91 | 37.64 | 37.81 | -6.41% | |
| 41.06 | 41.06 | 39.99 | 40.40 | -0.88% | |
| 40.30 | 40.90 | 40.08 | 40.76 | +0.54% | |
| 38.99 | 40.59 | 38.99 | 40.54 | +4.54% | |
| 38.83 | 39.55 | 38.50 | 38.78 | +0.54% | |
| 37.98 | 39.08 | 37.86 | 38.57 | +1.50% | |
| 40.60 | 40.95 | 37.85 | 38.00 | -4.02% | |
| 39.30 | 40.07 | 39.06 | 39.59 | +0.74% | |
| 39.92 | 40.49 | 39.18 | 39.30 | -2.29% | |
| 40.31 | 40.99 | 39.82 | 40.22 | -0.32% | |
| 39.68 | 40.78 | 39.52 | 40.35 | -0.10% | |
| 41.91 | 42.09 | 40.02 | 40.39 | -3.72% | |
| 41.87 | 42.30 | 41.49 | 41.95 | +0.89% | |
| 42.32 | 42.33 | 41.56 | 41.58 | -1.82% | |
| 42.55 | 42.91 | 41.03 | 42.35 | +0.50% | |
| 42.52 | 43.06 | 41.34 | 42.14 | -1.59% | |
| 44.07 | 44.39 | 42.14 | 42.82 | -3.56% | |
| 41.28 | 44.46 | 41.28 | 44.40 | +7.38% | |
| 42.17 | 42.22 | 40.20 | 41.35 | +1.45% | |
| 46.58 | 48.12 | 37.55 | 40.76 | -7.68% | |
| 43.80 | 44.25 | 43.51 | 44.15 | +0.85% | |
| 43.72 | 44.22 | 43.37 | 43.78 | +0.05% | |
| 43.98 | 44.66 | 43.27 | 43.76 | -0.55% | |
| 44.02 | 44.13 | 42.70 | 44.00 | -0.23% | |
| 44.44 | 44.82 | 44.07 | 44.10 | +0.02% | |
| 44.46 | 45.14 | 44.04 | 44.09 | +0.36% | |
| 43.42 | 44.29 | 43.42 | 43.93 | +1.13% | |
| 43.68 | 43.89 | 42.68 | 43.44 | -0.71% | |
| 43.80 | 44.39 | 43.49 | 43.75 | -0.11% | |
| 43.59 | 44.31 | 43.59 | 43.80 | +0.99% | |
| 43.36 | 44.34 | 43.04 | 43.37 | +0.42% | |
| 43.76 | 44.05 | 43.15 | 43.19 | -0.71% | |
| 43.19 | 43.92 | 43.15 | 43.50 | +1.21% | |
| 42.08 | 43.10 | 41.59 | 42.98 | +0.89% | |
| 42.86 | 42.96 | 42.09 | 42.60 | +1.57% | |
| 43.65 | 43.74 | 41.88 | 41.94 | -2.21% | |
| 43.91 | 43.93 | 42.31 | 42.89 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the NSSC chart for longer ranges.