Napco Security Technologies, Inc. (NSSC) NASDAQ

Currency In USD

NSSC Historical Return

If you invested $1000 in Napco Security Technologies, Inc. (NSSC) 10 years ago, it would be worth $10,672.36 as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,711.28, while $1000 invested 1 year ago would be worth $868.13. This corresponds to total returns of 967.24%, 71.13%, -13.19%, respectively, with annualized returns of 26.71%, 11.34%, -13.19%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

NSSC Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 21, 2026	36.51	37.24	37.24	37.36	36.51	252,170
October 20, 2026	35.98	36.45	36.45	36.59	35.89	206,647
October 19, 2026	35.57	35.91	35.91	36.12	35.41	236,235
October 16, 2026	36.02	35.57	35.57	36.27	35.21	285,619
October 15, 2026	35.05	35.96	35.96	35.98	35.05	223,938
October 14, 2026	35.71	35.02	35.02	35.9	34.65	265,215
October 13, 2026	36.25	36.18	36.18	36.49	35.82	233,660
October 12, 2026	36.14	36.2	36.2	36.44	35.86	226,609
October 09, 2026	35.38	36.14	36.14	36.24	35.1	230,147
October 08, 2026	35.32	35.16	35.16	35.42	34.71	418,298
October 07, 2026	36.12	35.19	35.19	36.51	34.78	393,243
October 06, 2026	36.49	36.64	36.64	36.67	36.25	162,631
October 05, 2026	36.17	36.22	36.22	36.5	35.84	326,453
October 02, 2026	36.76	36.17	36.17	36.76	36.16	218,074
October 01, 2026	35.69	36.19	36.19	36.49	35.41	345,689
September 30, 2026	35.64	35.62	35.62	35.74	35.35	326,113
September 29, 2026	35.04	35.57	35.57	35.59	34.85	228,276
September 28, 2026	35.32	35.06	35.06	35.52	34.52	298,021
September 25, 2026	35.74	35.66	35.66	36.24	35.47	298,255
September 24, 2026	35.88	35.68	35.68	35.88	34.86	371,445
September 23, 2026	35.76	35.96	35.96	36.21	35.39	251,685
September 22, 2026	36.33	35.88	35.88	36.47	35.63	322,871
September 21, 2026	35.76	35.82	35.82	36.19	35.6	254,760
September 18, 2026	35.89	36.13	36.13	36.21	35.59	667,825
September 17, 2026	36.95	35.95	35.95	36.95	35.33	425,689
September 16, 2026	36.04	36.33	36.33	36.38	35.79	392,199
September 15, 2026	35.81	35.95	35.95	36.14	35.35	288,131
September 11, 2026	35.51	36.26	36.26	36.32	35.51	329,923
September 10, 2026	35.7	35.51	35.51	36.12	35.43	251,184
September 09, 2026	36.7	35.91	35.91	37.06	35.72	335,252
September 08, 2026	36.91	37.09	37.09	37.24	36.49	305,197
September 04, 2026	36.94	37.01	37.01	37.48	36.19	391,151
September 03, 2026	35.86	37.05	37.05	37.22	35.43	430,927
September 02, 2026	35.45	35.65	35.65	36.61	35.45	390,878
September 01, 2026	36	35.24	35.24	36.37	34.94	520,067
August 31, 2026	35.35	36.24	36.24	36.48	35.05	539,068
August 28, 2026	35.38	35.35	35.35	36.14	34.65	435,302
August 27, 2026	34.68	35.28	35.28	35.4	33.91	1.12M
August 26, 2026	35.87	35.73	35.73	36.4	35.23	657,045
August 25, 2026	37.44	36.43	36.43	37.95	35.8	684,526
August 24, 2026	46.16	37.59	37.59	51.77	36.38	2.34M
August 21, 2026	37.97	38.09	38.09	38.29	37.21	349,064
August 20, 2026	37.46	37.77	37.77	38.29	37.46	316,141
August 19, 2026	38.15	37.8	37.8	38.25	37.7	276,730
August 18, 2026	37.66	37.81	37.81	37.97	37.13	270,419
August 17, 2026	38.06	38.06	38.06	38.34	37.94	207,189
August 14, 2026	38.3	38.32	38.32	38.47	37.86	190,398
August 13, 2026	39.23	38.26	38.26	39.62	38.22	207,877
August 12, 2026	39.91	38.87	38.87	40.11	38.67	226,397
August 11, 2026	40.21	39.61	39.61	40.88	39.38	240,115
August 10, 2026	40.94	40.01	40.01	41.43	39.93	188,181
August 07, 2026	40.84	41.36	41.36	41.62	40.68	247,198
August 06, 2026	40.13	40.92	40.92	41.19	40.13	245,695
August 05, 2026	40.3	40.34	40.34	40.55	39.97	231,058
August 04, 2026	38.63	40.22	40.22	40.31	38.35	401,877
August 03, 2026	37.27	38.09	38.09	38.33	37.18	241,672
July 31, 2026	36.31	37.08	37.08	37.19	36.08	234,920
July 30, 2026	36.68	36.37	36.37	36.85	35.88	323,891
July 29, 2026	36.88	36.37	36.37	37.62	36.02	328,507
July 28, 2026	36.34	37.25	37.25	37.36	36.26	274,666