Napco Security Technologies, Inc. (NSSC)

NASDAQ: NSSC · Real-Time Price · USD

45.38

+0.69 (1.54%)

At close: Apr 17, 2026, 4:00 PM EDT

45.86

+0.48 (1.06%)

After-hours: Apr 17, 2026, 7:53 PM EDT

NSSC Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Apr 17, 2026	45.52	46.05	44.75	45.38	45.38	1.54%	298,342
Apr 16, 2026	44.21	44.74	43.83	44.69	44.69	1.09%	223,598
Apr 15, 2026	43.90	44.31	43.35	44.21	44.21	0.09%	220,989
Apr 14, 2026	44.59	45.09	43.49	44.17	44.17	0.39%	344,348
Apr 13, 2026	42.50	44.03	42.41	44.00	44.00	2.92%	324,127
Apr 10, 2026	42.24	42.86	41.81	42.75	42.75	1.59%	312,694
Apr 9, 2026	42.40	42.71	41.96	42.08	42.08	-1.20%	334,142
Apr 8, 2026	43.47	43.97	42.53	42.59	42.59	2.60%	547,880
Apr 7, 2026	40.00	41.61	40.00	41.51	41.51	3.16%	404,098
Apr 6, 2026	39.75	40.32	39.28	40.24	40.24	0.93%	265,137
Apr 2, 2026	38.25	39.92	38.25	39.87	39.87	1.06%	276,155
Apr 1, 2026	39.72	40.22	39.41	39.45	39.45	0.15%	353,096
Mar 31, 2026	38.45	39.61	38.23	39.39	39.39	3.93%	290,672
Mar 30, 2026	38.84	38.84	37.51	37.90	37.90	-1.07%	410,216
Mar 27, 2026	38.51	39.12	38.01	38.31	38.31	-1.57%	436,950
Mar 26, 2026	40.74	41.03	38.52	38.92	38.92	-6.22%	477,662
Mar 25, 2026	43.38	43.38	41.17	41.50	41.50	-2.90%	516,728
Mar 24, 2026	42.13	43.41	41.96	42.74	42.74	0.16%	668,951
Mar 23, 2026	41.84	43.04	41.35	42.67	42.67	4.97%	470,482
Mar 20, 2026	42.38	42.38	40.49	40.65	40.65	-3.95%	1,048,859
Mar 19, 2026	42.01	42.57	40.56	42.32	42.32	-0.56%	716,867
Mar 18, 2026	43.38	43.46	42.05	42.56	42.56	-2.36%	879,711
Mar 17, 2026	42.84	43.60	42.48	43.59	43.59	1.75%	549,805
Mar 16, 2026	43.14	43.92	42.65	42.84	42.84	0.63%	871,534
Mar 13, 2026	42.20	42.75	42.07	42.57	42.57	1.00%	1,062,754
Mar 12, 2026	41.56	42.41	40.97	42.15	42.15	-0.94%	6,767,581
Mar 11, 2026	43.36	43.52	42.26	42.55	42.40	-1.96%	814,379
Mar 10, 2026	42.85	44.51	42.76	43.40	43.25	0.81%	651,856
Mar 9, 2026	42.06	43.26	40.97	43.05	42.90	4.59%	1,199,491
Mar 6, 2026	41.95	42.14	40.94	41.16	41.01	-3.36%	449,330
Mar 5, 2026	42.79	44.21	42.21	42.59	42.44	-2.25%	1,069,211
Mar 4, 2026	43.54	43.94	42.76	43.57	43.42	0.79%	370,741
Mar 3, 2026	43.51	43.63	42.21	43.23	43.08	-3.22%	433,348
Mar 2, 2026	45.65	45.76	44.40	44.67	44.51	-4.16%	652,500
Feb 27, 2026	46.18	46.67	45.55	46.61	46.45	-0.09%	1,048,401
Feb 26, 2026	47.29	47.30	46.19	46.65	46.49	-1.23%	270,880
Feb 25, 2026	46.46	47.26	45.50	47.23	47.06	2.74%	358,492
Feb 24, 2026	46.17	47.16	45.52	45.97	45.81	0.22%	418,671
Feb 23, 2026	45.55	45.92	44.48	45.87	45.71	0.02%	445,503
Feb 20, 2026	44.81	46.08	44.62	45.86	45.70	1.96%	534,346
Feb 19, 2026	43.27	45.03	42.72	44.98	44.82	3.43%	729,632
Feb 18, 2026	44.15	44.57	43.32	43.49	43.34	-1.45%	456,008
Feb 17, 2026	44.28	44.77	42.98	44.13	43.97	-0.05%	672,528
Feb 13, 2026	42.73	45.43	42.39	44.15	43.99	3.66%	1,013,580
Feb 12, 2026	43.69	44.50	41.31	42.59	42.44	-0.95%	1,015,103
Feb 11, 2026	42.61	43.16	42.01	43.00	42.85	0.87%	374,601
Feb 10, 2026	43.29	43.29	42.05	42.63	42.48	-0.91%	416,214
Feb 9, 2026	43.33	44.27	43.00	43.02	42.87	-1.44%	388,638
Feb 6, 2026	43.61	44.04	42.54	43.65	43.50	0.41%	575,186
Feb 5, 2026	43.50	43.55	41.71	43.47	43.32	-0.59%	1,067,035