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 $11,191.36 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,711.18, while $1000 invested 1 year ago would be worth $870.59. This corresponds to total returns of 1,019.14%, 71.12%, -12.94%, respectively, with annualized returns of 27.3%, 11.34%, -12.94%.

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
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
July 27, 2026	36.08	36.4	36.4	36.57	35.68	214,832
July 23, 2026	34.96	35.66	35.66	35.8	34.95	263,432
July 22, 2026	35.96	35.57	35.57	36.48	35.35	307,925
July 21, 2026	36.24	36.18	36.18	36.54	35.44	226,559
July 20, 2026	36.21	36.05	36.05	36.56	35.92	232,224
July 17, 2026	36.15	36.12	36.12	36.88	36.09	252,689
July 16, 2026	35.33	36.67	36.67	36.73	35.33	274,727
July 15, 2026	35.87	35.56	35.56	36.31	35.49	290,234
July 14, 2026	36.12	35.9	35.9	36.12	35.54	241,873
July 13, 2026	35.93	35.74	35.74	36.3	35.62	282,141
July 10, 2026	36.28	36.07	36.07	36.38	35.56	486,973
July 09, 2026	37.2	36.09	36.09	37.6	34.2	673,509
July 08, 2026	38.02	38.08	38.08	38.56	37.66	384,525
July 07, 2026	38.81	38.4	38.4	38.87	37.94	275,605
July 06, 2026	37.97	39.18	39.18	39.24	37.8	226,274
July 02, 2026	38.11	37.79	37.79	38.41	37.22	233,074
July 01, 2026	37.98	37.86	37.86	38.66	37.69	281,680
June 30, 2026	37.42	37.98	37.98	38.17	37.27	262,473
June 29, 2026	37.07	37.29	37.29	37.45	36.67	331,015
June 26, 2026	37	37.29	37.29	37.67	36.73	905,841
June 25, 2026	38.03	37.42	37.42	38.38	37.34	541,498
June 24, 2026	37.29	37.42	37.42	38.38	37.21	491,174
June 23, 2026	37.22	37.49	37.49	38.31	37.05	560,219
June 22, 2026	36.93	37.5	37.5	37.6	36.32	590,650
June 18, 2026	36.85	37.39	37.39	38.02	36.55	1.52M
June 17, 2026	37.52	36.06	36.06	37.99	36.04	397,732
June 16, 2026	37.82	37.49	37.49	38.43	37.26	557,705