Napco Security Technologies, Inc. (NSSC)

NASDAQ: NSSC · Real-Time Price · USD

37.77

-0.03 (-0.08%)

At close: Aug 20, 2026, 4:00 PM EDT

37.77

0.00 (0.00%)

After-hours: Aug 20, 2026, 5:10 PM EDT

NSSC Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 20, 2026	37.46	38.29	37.46	37.77	37.77	-0.08%	225,673
Aug 19, 2026	38.15	38.25	37.70	37.80	37.80	-0.03%	203,705
Aug 18, 2026	37.66	37.97	37.13	37.81	37.81	-0.66%	270,419
Aug 17, 2026	38.06	38.34	37.94	38.06	38.06	-0.68%	207,189
Aug 14, 2026	38.30	38.47	37.86	38.32	38.32	0.16%	190,397
Aug 13, 2026	39.23	39.62	38.22	38.26	38.26	-1.57%	207,877
Aug 12, 2026	39.91	40.11	38.67	38.87	38.87	-1.87%	226,397
Aug 11, 2026	40.21	40.88	39.38	39.61	39.61	-1.00%	240,015
Aug 10, 2026	40.94	41.43	39.93	40.01	40.01	-3.26%	188,181
Aug 7, 2026	40.84	41.62	40.68	41.36	41.36	1.08%	247,198
Aug 6, 2026	40.13	41.19	40.13	40.92	40.92	1.44%	245,696
Aug 5, 2026	40.30	40.55	39.97	40.34	40.34	0.30%	231,059
Aug 4, 2026	38.63	40.31	38.35	40.22	40.22	5.59%	401,898
Aug 3, 2026	37.27	38.33	37.18	38.09	38.09	2.72%	241,674
Jul 31, 2026	36.31	37.19	36.08	37.08	37.08	1.95%	234,922
Jul 30, 2026	36.68	36.85	35.88	36.37	36.37	-	323,917
Jul 29, 2026	36.88	37.62	36.02	36.37	36.37	-2.36%	328,508
Jul 28, 2026	36.34	37.36	36.26	37.25	37.25	2.34%	274,671
Jul 27, 2026	36.08	36.57	35.68	36.40	36.40	1.85%	215,373
Jul 24, 2026	36.03	36.25	35.53	35.74	35.74	0.22%	207,347
Jul 23, 2026	34.96	35.80	34.95	35.66	35.66	0.25%	263,433
Jul 22, 2026	35.96	36.48	35.35	35.57	35.57	-1.69%	309,583
Jul 21, 2026	36.24	36.54	35.44	36.18	36.18	0.36%	227,086
Jul 20, 2026	36.21	36.56	35.92	36.05	36.05	-0.19%	232,226
Jul 17, 2026	36.15	36.88	36.09	36.12	36.12	-1.50%	252,689
Jul 16, 2026	35.33	36.73	35.33	36.67	36.67	3.12%	274,727
Jul 15, 2026	35.87	36.31	35.49	35.56	35.56	-0.95%	290,234
Jul 14, 2026	36.12	36.12	35.54	35.90	35.90	0.45%	241,873
Jul 13, 2026	35.93	36.30	35.62	35.74	35.74	-0.91%	282,151
Jul 10, 2026	36.28	36.38	35.56	36.07	36.07	-0.06%	486,973
Jul 9, 2026	37.20	37.61	34.20	36.09	36.09	-5.23%	673,509
Jul 8, 2026	38.02	38.56	37.66	38.08	38.08	-0.83%	384,526
Jul 7, 2026	38.81	38.87	37.94	38.40	38.40	-1.99%	275,609
Jul 6, 2026	37.97	39.24	37.80	39.18	39.18	3.68%	226,296
Jul 2, 2026	38.11	38.41	37.22	37.79	37.79	-0.18%	233,074
Jul 1, 2026	37.98	38.66	37.69	37.86	37.86	-0.32%	281,680
Jun 30, 2026	37.42	38.18	37.27	37.98	37.98	1.85%	262,485
Jun 29, 2026	37.07	37.45	36.67	37.29	37.29	-	331,218
Jun 26, 2026	37.00	37.67	36.73	37.29	37.29	-0.35%	905,845
Jun 25, 2026	38.03	38.38	37.34	37.42	37.42	-	541,498
Jun 24, 2026	37.29	38.38	37.21	37.42	37.42	-0.19%	491,208
Jun 23, 2026	37.22	38.31	37.05	37.49	37.49	-0.03%	560,239
Jun 22, 2026	36.93	37.61	36.32	37.50	37.50	0.29%	590,735
Jun 18, 2026	36.85	38.02	36.55	37.39	37.39	3.69%	1,528,957
Jun 17, 2026	37.52	37.99	36.04	36.06	36.06	-3.81%	397,758
Jun 16, 2026	37.82	38.43	37.26	37.49	37.49	-0.21%	562,263
Jun 15, 2026	37.88	38.23	37.46	37.57	37.57	0.94%	1,025,947
Jun 12, 2026	36.43	37.62	36.08	37.22	37.22	2.59%	401,686
Jun 11, 2026	35.46	36.56	35.16	36.43	36.28	3.41%	459,917
Jun 10, 2026	35.05	35.61	34.72	35.23	35.08	0.26%	313,240