Napco Security Technologies, Inc. (NSSC)
NASDAQ: NSSC · Real-Time Price · USD
41.31
+0.38 (0.93%)
At close: Dec 5, 2025, 4:00 PM EST
40.51
-0.80 (-1.94%)
After-hours: Dec 5, 2025, 6:54 PM EST
NSSC Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 40.83 | 41.68 | 40.48 | 41.31 | 41.31 | 0.93% | 501,286 |
| Dec 4, 2025 | 40.79 | 41.55 | 40.28 | 40.93 | 40.93 | -0.22% | 373,854 |
| Dec 3, 2025 | 39.91 | 41.08 | 38.97 | 41.02 | 41.02 | 2.86% | 379,553 |
| Dec 2, 2025 | 38.19 | 39.92 | 37.91 | 39.88 | 39.88 | 5.47% | 688,131 |
| Dec 1, 2025 | 39.91 | 39.91 | 37.64 | 37.81 | 37.81 | -6.41% | 585,307 |
| Nov 28, 2025 | 41.06 | 41.06 | 39.99 | 40.40 | 40.40 | -0.88% | 114,639 |
| Nov 26, 2025 | 40.30 | 40.90 | 40.08 | 40.76 | 40.76 | 0.54% | 164,158 |
| Nov 25, 2025 | 38.99 | 40.59 | 38.99 | 40.54 | 40.54 | 4.54% | 264,349 |
| Nov 24, 2025 | 38.83 | 39.55 | 38.50 | 38.78 | 38.78 | 0.54% | 392,414 |
| Nov 21, 2025 | 37.98 | 39.08 | 37.86 | 38.57 | 38.57 | 1.50% | 565,341 |
| Nov 20, 2025 | 40.60 | 40.95 | 37.85 | 38.00 | 38.00 | -4.02% | 525,274 |
| Nov 19, 2025 | 39.30 | 40.07 | 39.06 | 39.59 | 39.59 | 0.74% | 369,653 |
| Nov 18, 2025 | 39.92 | 40.49 | 39.18 | 39.30 | 39.30 | -2.29% | 173,420 |
| Nov 17, 2025 | 40.31 | 40.99 | 39.82 | 40.22 | 40.22 | -0.32% | 250,599 |
| Nov 14, 2025 | 39.68 | 40.78 | 39.52 | 40.35 | 40.35 | -0.10% | 263,739 |
| Nov 13, 2025 | 41.91 | 42.09 | 40.02 | 40.39 | 40.39 | -3.72% | 239,682 |
| Nov 12, 2025 | 41.87 | 42.30 | 41.49 | 41.95 | 41.95 | 0.89% | 168,165 |
| Nov 11, 2025 | 42.32 | 42.33 | 41.56 | 41.58 | 41.58 | -1.82% | 163,491 |
| Nov 10, 2025 | 42.55 | 42.91 | 41.03 | 42.35 | 42.35 | 0.50% | 263,157 |
| Nov 7, 2025 | 42.52 | 43.06 | 41.34 | 42.14 | 42.14 | -1.58% | 445,681 |
| Nov 6, 2025 | 44.07 | 44.39 | 42.14 | 42.82 | 42.82 | -3.56% | 343,705 |
| Nov 5, 2025 | 41.28 | 44.46 | 41.28 | 44.40 | 44.40 | 7.36% | 433,210 |
| Nov 4, 2025 | 42.17 | 42.22 | 40.20 | 41.35 | 41.35 | 1.45% | 574,596 |
| Nov 3, 2025 | 46.58 | 48.12 | 37.55 | 40.76 | 40.76 | -7.68% | 750,471 |
| Oct 31, 2025 | 43.80 | 44.25 | 43.51 | 44.15 | 44.15 | 0.85% | 392,227 |
| Oct 30, 2025 | 43.72 | 44.22 | 43.37 | 43.78 | 43.78 | 0.05% | 163,862 |
| Oct 29, 2025 | 43.98 | 44.66 | 43.27 | 43.76 | 43.76 | -0.55% | 246,388 |
| Oct 28, 2025 | 44.02 | 44.13 | 42.70 | 44.00 | 44.00 | -0.23% | 218,388 |
| Oct 27, 2025 | 44.44 | 44.82 | 44.07 | 44.10 | 44.10 | 0.02% | 230,689 |
| Oct 24, 2025 | 44.46 | 45.14 | 44.04 | 44.09 | 44.09 | 0.36% | 373,463 |
| Oct 23, 2025 | 43.42 | 44.29 | 43.42 | 43.93 | 43.93 | 1.13% | 188,136 |
| Oct 22, 2025 | 43.68 | 43.89 | 42.68 | 43.44 | 43.44 | -0.70% | 225,806 |
| Oct 21, 2025 | 43.80 | 44.39 | 43.49 | 43.75 | 43.75 | -0.13% | 159,883 |
| Oct 20, 2025 | 43.59 | 44.31 | 43.59 | 43.80 | 43.80 | 0.99% | 259,727 |
| Oct 17, 2025 | 43.36 | 44.34 | 43.04 | 43.37 | 43.37 | 0.42% | 255,724 |
| Oct 16, 2025 | 43.76 | 44.05 | 43.15 | 43.19 | 43.19 | -0.71% | 315,148 |
| Oct 15, 2025 | 43.19 | 43.92 | 43.15 | 43.50 | 43.50 | 1.21% | 257,340 |
| Oct 14, 2025 | 42.08 | 43.10 | 41.59 | 42.98 | 42.98 | 0.89% | 164,806 |
| Oct 13, 2025 | 42.86 | 42.96 | 42.09 | 42.60 | 42.60 | 1.57% | 159,641 |
| Oct 10, 2025 | 43.65 | 43.74 | 41.88 | 41.94 | 41.94 | -2.21% | 243,339 |
| Oct 9, 2025 | 43.91 | 43.93 | 42.31 | 42.89 | 42.89 | -2.32% | 162,094 |
| Oct 8, 2025 | 43.36 | 44.30 | 43.06 | 43.91 | 43.91 | 1.88% | 374,425 |
| Oct 7, 2025 | 43.85 | 43.85 | 42.73 | 43.10 | 43.10 | -0.97% | 491,841 |
| Oct 6, 2025 | 43.07 | 43.74 | 42.96 | 43.52 | 43.52 | 2.06% | 342,094 |
| Oct 3, 2025 | 42.89 | 43.50 | 42.52 | 42.64 | 42.64 | -0.14% | 269,569 |
| Oct 2, 2025 | 43.09 | 43.09 | 42.30 | 42.70 | 42.70 | -0.05% | 192,979 |
| Oct 1, 2025 | 42.46 | 42.91 | 42.25 | 42.72 | 42.72 | -0.54% | 259,337 |
| Sep 30, 2025 | 42.50 | 43.05 | 42.42 | 42.95 | 42.95 | 1.08% | 266,688 |
| Sep 29, 2025 | 43.20 | 43.50 | 42.46 | 42.49 | 42.49 | -1.51% | 221,555 |
| Sep 26, 2025 | 43.15 | 43.48 | 42.75 | 43.14 | 43.14 | 0.14% | 212,680 |
| Sep 25, 2025 | 42.70 | 43.22 | 42.45 | 43.08 | 43.08 | -0.78% | 272,858 |
| Sep 24, 2025 | 43.93 | 45.03 | 43.17 | 43.42 | 43.42 | 0.63% | 371,674 |
| Sep 23, 2025 | 42.70 | 43.58 | 42.42 | 43.15 | 43.15 | 1.70% | 309,229 |
| Sep 22, 2025 | 42.63 | 42.75 | 41.91 | 42.43 | 42.43 | -0.47% | 361,772 |
| Sep 19, 2025 | 42.04 | 42.67 | 41.46 | 42.63 | 42.63 | 1.52% | 1,665,561 |
| Sep 18, 2025 | 42.90 | 42.90 | 41.10 | 41.99 | 41.99 | -0.97% | 560,423 |
| 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 | 39.94 | -0.05% | 250,903 |
| Sep 9, 2025 | 40.20 | 40.52 | 40.06 | 40.10 | 39.96 | -0.40% | 401,999 |
| Sep 8, 2025 | 39.79 | 40.29 | 39.52 | 40.26 | 40.12 | 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% | 580,037 |
| 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 | 37.27 | 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 | 31.59 | 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 |