Napco Security Technologies, Inc. (NSSC)
NASDAQ: NSSC · Real-Time Price · USD
41.99
-0.41 (-0.97%)
At close: Sep 18, 2025, 4:00 PM EDT
41.85
-0.14 (-0.33%)
After-hours: Sep 18, 2025, 5:58 PM EDT
NSSC Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 18, 2025 | 42.90 | 42.90 | 41.10 | 41.99 | 41.99 | -0.97% | 560,237 |
| Sep 17, 2025 | 42.90 | 43.56 | 42.13 | 42.40 | 42.40 | -1.23% | 508,814 |
| Sep 16, 2025 | 43.77 | 44.01 | 42.76 | 42.93 | 42.93 | -1.67% | 629,212 |
| Sep 15, 2025 | 42.16 | 44.24 | 41.55 | 43.66 | 43.66 | 4.13% | 808,716 |
| Sep 12, 2025 | 41.37 | 42.10 | 41.05 | 41.93 | 41.93 | 1.06% | 490,825 |
| Sep 11, 2025 | 40.01 | 41.55 | 39.84 | 41.49 | 41.35 | 3.52% | 327,785 |
| Sep 10, 2025 | 40.10 | 40.42 | 39.81 | 40.08 | 39.95 | -0.05% | 250,903 |
| Sep 9, 2025 | 40.20 | 40.52 | 40.06 | 40.10 | 39.97 | -0.40% | 401,999 |
| Sep 8, 2025 | 39.79 | 40.29 | 39.52 | 40.26 | 40.13 | 1.87% | 244,749 |
| Sep 5, 2025 | 39.71 | 40.35 | 39.16 | 39.52 | 39.39 | 0.69% | 343,124 |
| Sep 4, 2025 | 39.82 | 39.82 | 38.66 | 39.25 | 39.12 | -1.28% | 467,546 |
| Sep 3, 2025 | 38.57 | 39.86 | 38.44 | 39.76 | 39.63 | 3.30% | 579,874 |
| Sep 2, 2025 | 37.84 | 38.52 | 37.52 | 38.49 | 38.36 | 1.16% | 668,070 |
| Aug 29, 2025 | 38.14 | 38.14 | 37.50 | 38.05 | 37.92 | -0.73% | 445,259 |
| Aug 28, 2025 | 38.47 | 38.55 | 37.78 | 38.33 | 38.20 | -0.21% | 434,830 |
| Aug 27, 2025 | 37.16 | 38.60 | 37.05 | 38.41 | 38.28 | 2.70% | 612,749 |
| Aug 26, 2025 | 34.25 | 37.45 | 34.25 | 37.40 | 37.28 | 11.18% | 1,125,025 |
| Aug 25, 2025 | 34.44 | 35.76 | 31.47 | 33.64 | 33.53 | 6.12% | 1,493,648 |
| Aug 22, 2025 | 30.59 | 31.86 | 30.40 | 31.70 | 31.60 | 4.31% | 318,881 |
| Aug 21, 2025 | 30.14 | 30.53 | 30.03 | 30.39 | 30.29 | 0.66% | 251,288 |
| Aug 20, 2025 | 30.90 | 30.90 | 29.88 | 30.19 | 30.09 | -1.98% | 219,916 |
| Aug 19, 2025 | 30.68 | 31.21 | 30.57 | 30.80 | 30.70 | 0.49% | 186,246 |
| Aug 18, 2025 | 30.58 | 30.73 | 30.31 | 30.65 | 30.55 | 0.52% | 270,412 |
| Aug 15, 2025 | 31.16 | 31.16 | 30.29 | 30.49 | 30.39 | -1.96% | 186,158 |
| Aug 14, 2025 | 31.97 | 32.06 | 30.87 | 31.10 | 31.00 | -4.16% | 298,980 |
| Aug 13, 2025 | 31.08 | 32.49 | 31.07 | 32.45 | 32.34 | 4.81% | 340,770 |
| Aug 12, 2025 | 29.95 | 31.15 | 29.74 | 30.96 | 30.86 | 4.17% | 244,044 |
| Aug 11, 2025 | 29.90 | 30.04 | 29.59 | 29.72 | 29.62 | -0.60% | 132,062 |
| Aug 8, 2025 | 29.81 | 30.37 | 29.63 | 29.90 | 29.80 | 1.12% | 217,987 |
| Aug 7, 2025 | 29.99 | 30.04 | 29.27 | 29.57 | 29.47 | -0.07% | 240,107 |
| Aug 6, 2025 | 30.40 | 30.52 | 29.58 | 29.59 | 29.49 | -2.86% | 240,949 |
| Aug 5, 2025 | 31.10 | 31.10 | 30.44 | 30.46 | 30.36 | -1.71% | 255,434 |
| Aug 4, 2025 | 30.34 | 31.05 | 30.34 | 30.99 | 30.89 | 2.51% | 168,686 |
| Aug 1, 2025 | 30.11 | 30.34 | 29.69 | 30.23 | 30.13 | -0.98% | 213,751 |
| Jul 31, 2025 | 30.84 | 31.32 | 30.40 | 30.53 | 30.43 | -1.36% | 267,832 |
| Jul 30, 2025 | 30.93 | 31.64 | 30.71 | 30.95 | 30.85 | 0.19% | 269,729 |
| Jul 29, 2025 | 31.37 | 31.70 | 30.84 | 30.89 | 30.79 | -0.45% | 280,463 |
| Jul 28, 2025 | 30.50 | 31.05 | 30.32 | 31.03 | 30.93 | 2.01% | 279,732 |
| Jul 25, 2025 | 29.87 | 30.44 | 29.84 | 30.42 | 30.32 | 2.42% | 267,370 |
| Jul 24, 2025 | 30.49 | 30.55 | 29.55 | 29.70 | 29.60 | -2.78% | 388,567 |
| Jul 23, 2025 | 30.52 | 30.91 | 30.21 | 30.55 | 30.45 | 0.79% | 230,839 |
| Jul 22, 2025 | 30.39 | 30.47 | 30.12 | 30.31 | 30.21 | -0.43% | 241,428 |
| Jul 21, 2025 | 30.47 | 30.72 | 30.32 | 30.44 | 30.34 | 0.23% | 155,535 |
| Jul 18, 2025 | 31.06 | 31.07 | 30.33 | 30.37 | 30.27 | -1.56% | 165,431 |
| Jul 17, 2025 | 30.56 | 31.05 | 30.54 | 30.85 | 30.75 | 1.11% | 235,005 |
| Jul 16, 2025 | 30.22 | 30.54 | 29.80 | 30.51 | 30.41 | 1.03% | 227,794 |
| Jul 15, 2025 | 30.87 | 31.05 | 30.20 | 30.20 | 30.10 | -1.24% | 194,436 |
| Jul 14, 2025 | 30.83 | 30.90 | 30.32 | 30.58 | 30.48 | -0.91% | 233,119 |
| Jul 11, 2025 | 31.35 | 31.41 | 30.67 | 30.86 | 30.76 | -2.50% | 456,955 |
| Jul 10, 2025 | 30.84 | 32.06 | 30.78 | 31.65 | 31.55 | 4.80% | 388,426 |