Natural Alternatives International, Inc. (NAII) NASDAQ

Currency In USD

NAII Historical Return

If you invested $1000 in Natural Alternatives International, Inc. (NAII) 10 years ago, it would be worth $204.18 as of August 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $128.43, while $1000 invested 1 year ago would be worth $544.3. This corresponds to total returns of -79.58%, -87.16%, -45.57%, respectively, with annualized returns of -14.68%, -33.65%, -45.57%.

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

NAII Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	2.13	2.15	2.15	2.41	2.07	44,641
August 20, 2026	2.14	2.07	2.07	2.42	2.07	8,950
August 19, 2026	2.12	2.12	2.12	2.12	2.12	2,406
August 18, 2026	2.11	2.04	2.04	2.11	2.04	3,344
August 17, 2026	2.02	2.05	2.05	2.14	2	20,093
August 14, 2026	2.27	2.04	2.04	2.27	2.01	17,723
August 13, 2026	2.06	2.17	2.17	2.21	2.06	20,358
August 12, 2026	2.07	2.1	2.1	2.24	2.04	23,576
August 11, 2026	2.09	2.26	2.26	2.37	2.05	1.33M
August 10, 2026	2.29	2.33	2.33	2.33	2.27	1,628
August 07, 2026	2.39	2.37	2.37	2.39	2.34	4,838
August 06, 2026	2.26	2.38	2.38	2.44	2.25	1,289
August 05, 2026	2.3	2.26	2.26	2.33	2.25	26,417
August 04, 2026	2.29	2.32	2.32	2.35	2.26	7,900
August 03, 2026	2.39	2.27	2.27	2.39	2.26	7,789
July 31, 2026	2.45	2.29	2.29	2.45	2.29	2,323
July 30, 2026	2.22	2.43	2.43	2.48	2.22	37,621
July 29, 2026	2.41	2.22	2.22	2.45	2.2	12,552
July 28, 2026	2.36	2.35	2.35	2.36	2.3	5,320
July 27, 2026	2.55	2.37	2.37	2.55	2.36	7,892
July 23, 2026	2.33	2.32	2.32	2.4	2.32	2,661
July 22, 2026	2.31	2.38	2.38	2.49	2.3	15,777
July 21, 2026	2.28	2.35	2.35	2.36	2.2	37,182
July 20, 2026	2.27	2.15	2.15	2.37	2.09	7,670
July 17, 2026	2.21	2.22	2.22	2.25	2.21	7,172
July 16, 2026	2.26	2.26	2.26	2.33	2.26	6,903
July 15, 2026	2.22	2.26	2.26	2.3	2.22	4,137
July 14, 2026	2.31	2.21	2.21	2.34	2.19	15,515
July 13, 2026	2.25	2.21	2.21	2.29	2.14	11,890
July 10, 2026	2.24	2.23	2.23	2.25	2.22	11,714
July 09, 2026	2.45	2.24	2.24	2.45	2.22	11,407
July 08, 2026	2.3	2.28	2.28	2.3	2.21	4,262
July 07, 2026	2.46	2.28	2.28	2.5	2.23	12,793
July 06, 2026	2.39	2.28	2.28	2.39	2.22	30,853
July 02, 2026	2.4	2.37	2.37	2.42	2.37	23,859
July 01, 2026	2.45	2.39	2.39	2.45	2.37	16,924
June 30, 2026	2.44	2.39	2.39	2.44	2.37	6,005
June 29, 2026	2.48	2.39	2.39	2.48	2.36	12,081
June 26, 2026	2.45	2.39	2.39	2.46	2.35	14,826
June 25, 2026	2.45	2.42	2.42	2.5	2.31	5,775
June 24, 2026	2.47	2.43	2.43	2.47	2.42	4,627
June 23, 2026	2.5	2.48	2.48	2.52	2.46	50,298
June 22, 2026	2.65	2.48	2.48	2.65	2.47	56,096
June 18, 2026	2.56	2.67	2.67	2.71	2.51	246,829
June 17, 2026	2.46	2.51	2.51	2.62	2.46	9,292
June 16, 2026	2.6	2.5	2.5	2.67	2.48	76,128
June 15, 2026	2.55	2.52	2.52	2.66	2.5	46,431
June 12, 2026	2.48	2.46	2.46	2.68	2.46	32,462
June 11, 2026	2.51	2.48	2.48	2.62	2.48	13,018
June 10, 2026	2.53	2.51	2.51	2.68	2.5	4,728
June 09, 2026	2.55	2.51	2.51	2.58	2.48	7,296
June 08, 2026	2.5	2.52	2.52	2.67	2.5	14,219
June 05, 2026	2.5	2.5	2.5	2.51	2.48	7,416
June 04, 2026	2.65	2.53	2.53	2.65	2.46	29,576
June 03, 2026	2.44	2.51	2.51	2.53	2.44	9,434
June 02, 2026	2.6	2.52	2.52	2.6	2.51	13,977
June 01, 2026	2.51	2.52	2.52	2.68	2.48	15,062
May 29, 2026	2.65	2.54	2.54	2.67	2.53	20,672
May 28, 2026	2.65	2.64	2.64	2.65	2.55	8,197
May 27, 2026	2.64	2.63	2.63	2.75	2.52	16,201