Natural Alternatives International, Inc. (NAII) Stock Price History

Historical prices from 1993 to 2026

$2.48-0.23 (-8.49%)close Jun 22

Returns

1M: +4.6%
3M: +3.4%
YTD: -24.5%
1Y: -21.9%
3Y: -28.6%
5Y: -27.8%

ATH$26.63Jul 1998-90.7%

ATL$1.08Oct 2001pre-split

Avg Vol (50D)24K/ day

52-Week Range$2.33 — $4.96

LowCurrent: $2.48High

Loading 10-year price history...

NAII Historical Performance

1 YearTotal Return

-21.9%

Price: -21.9%

3 YearsTotal Return

-63.6%

CAGR: -28.6%

Price: -63.6%

5 YearsTotal Return

-80.4%

CAGR: -27.8%

Price: -80.4%

YTD

-24.5%

NAII Annual Returns

Year-by-year price performance · 2002–2026

Best+94.4%2015

Worst-70.5%1999

Up years11/25

2002+65.8%

2003+62.0%

2004+44.2%

2005-26.3%

2006+36.1%

2007-2.3%

2008-30.5%

2009+26.0%

2010-25.6%

2011+56.7%

2012-38.9%

2013+8.8%

2014-5.0%

2015+94.4%

2016+8.4%

2017-10.0%

2018-4.6%

2019-18.9%

2020+33.7%

2021+19.3%

2022-33.6%

2023-20.4%

2024-34.0%

2025-16.6%

2026-24.5%

2002 annual price return: +65.8%
2003 annual price return: +62.0%
2004 annual price return: +44.2%
2005 annual price return: -26.3%
2006 annual price return: +36.1%
2007 annual price return: -2.3%
2008 annual price return: -30.5%
2009 annual price return: +26.0%
2010 annual price return: -25.6%
2011 annual price return: +56.7%
2012 annual price return: -38.9%
2013 annual price return: +8.8%
2014 annual price return: -5.0%
2015 annual price return: +94.4%
2016 annual price return: +8.4%
2017 annual price return: -10.0%
2018 annual price return: -4.6%
2019 annual price return: -18.9%
2020 annual price return: +33.7%
2021 annual price return: +19.3%
2022 annual price return: -33.6%
2023 annual price return: -20.4%
2024 annual price return: -34.0%
2025 annual price return: -16.6%
2026 annual price return: -24.5%

LessMore

NAII Stock Price Trajectory (1993–2026)

As of June 22, 2026, Natural Alternatives International, Inc. (NAII) trades at $2.48, representing a -21.9% return over the past year. The stock has delivered a -80.4% total return over five years (-27.8% CAGR), reflecting challenging market conditions.

The stock reached its all-time high of $26.63 on July 17, 1998. From this peak, NAII has corrected -90.7%, currently trading 18% below its 200-day moving average, suggesting potential weakness.

When compared to Consumer Defensive sector peers NATR (+37.3% 1Y), MGPI (-46.1% 1Y), and USNA (-38.0% 1Y), NAII has underperformed the peer group average. Compare NAII vs NATR →

NAII Historical Price Data · from 1993

Rows 1–50 of 8,216

Date	Open	High	Low	Close	Volume	Change %
2026-06-22	2.65	2.65	2.47	2.48	56K	-8.49%
2026-06-18	2.56	2.71	2.55	2.71	239K	+7.97%
2026-06-17	2.46	2.62	2.46	2.51	9K	+0.40%
2026-06-16	2.61	2.67	2.48	2.50	75K	-0.79%
2026-06-15	2.55	2.66	2.50	2.52	46K	+2.44%
2026-06-12	2.48	2.68	2.46	2.46	32K	-0.81%
2026-06-11	2.51	2.62	2.48	2.48	13K	-1.20%
2026-06-10	2.53	2.67	2.50	2.51	5K	+0.20%
2026-06-09	2.55	2.58	2.48	2.50	7K	-0.60%
2026-06-08	2.51	2.67	2.50	2.52	14K	+0.80%
2026-06-05	2.51	2.52	2.46	2.50	7K	-1.19%
2026-06-04	2.65	2.65	2.46	2.53	30K	+0.80%
2026-06-03	2.44	2.52	2.44	2.51	9K	-0.40%
2026-06-02	2.60	2.60	2.51	2.52	14K	0.00%
2026-06-01	2.51	2.68	2.48	2.52	15K	-0.79%
2026-05-29	2.57	2.57	2.54	2.54	21K	-3.79%
2026-05-28	2.65	2.65	2.55	2.64	8K	+0.38%
2026-05-27	2.64	2.75	2.50	2.63	16K	+3.14%
2026-05-26	2.52	2.63	2.52	2.55	28K	0.00%
2026-05-22	2.56	2.56	2.51	2.55	16K	-0.78%
2026-05-21	2.55	2.63	2.55	2.57	9K	-0.77%
2026-05-20	2.53	2.62	2.50	2.59	10K	+1.17%
2026-05-19	2.50	2.59	2.42	2.56	45K	-1.16%
2026-05-18	2.74	2.74	2.59	2.59	15K	-2.63%
2026-05-15	2.62	2.68	2.60	2.66	7K	-1.48%
2026-05-14	2.70	2.83	2.69	2.70	13K	-0.37%
2026-05-13	2.71	2.75	2.70	2.71	14K	0.00%
2026-05-12	2.82	2.82	2.69	2.71	9K	+1.50%
2026-05-11	2.70	2.70	2.66	2.67	12K	0.00%
2026-05-08	2.60	2.80	2.60	2.67	5K	-2.55%
2026-05-07	2.75	2.75	2.71	2.74	5K	+0.74%
2026-05-06	2.67	2.75	2.65	2.72	10K	+4.21%
2026-05-05	2.68	2.71	2.58	2.61	46K	-2.25%
2026-05-04	2.70	2.76	2.66	2.67	19K	-1.84%
2026-05-01	2.69	2.74	2.66	2.72	8K	+1.87%
2026-04-30	2.71	2.71	2.67	2.67	19K	0.00%
2026-04-29	2.67	2.78	2.67	2.67	6K	-0.37%
2026-04-28	2.80	2.83	2.67	2.68	18K	-1.11%
2026-04-27	2.76	2.82	2.71	2.71	62K	+1.31%
2026-04-24	2.73	2.73	2.63	2.67	13K	-3.08%
2026-04-23	2.72	2.83	2.72	2.76	40K	-1.43%
2026-04-22	2.79	2.80	2.73	2.80	36K	+3.32%
2026-04-21	2.75	2.85	2.68	2.71	6K	-1.81%
2026-04-20	2.70	2.77	2.70	2.76	27K	+3.56%
2026-04-17	2.71	2.77	2.67	2.67	5K	-0.93%
2026-04-16	2.66	2.70	2.60	2.69	7K	0.00%
2026-04-15	2.71	2.75	2.65	2.69	10K	-2.18%
2026-04-14	2.69	2.90	2.69	2.75	24K	+0.73%
2026-04-13	2.93	2.93	2.70	2.73	33K	-2.15%
2026-04-10	2.75	2.96	2.71	2.79	7K	-1.06%

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10-year return with dividends reinvested.

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NAII — Frequently Asked Questions

Quick answers to the most common questions about buying NAII stock.

How has NAII stock performed recently?

NAII declined -21.9% over the past year, below its 5-year annualized CAGR of -27.8%. The stock trades below its 200-day moving average, reflecting the downtrend.

What is NAII's all-time high price?

Natural Alternatives International, Inc. reached $26.63 on 1998-07-17. The 52-week high is $4.96. Current 1-year return of -21.9% places the stock further from historical peaks.

Where can I download NAII historical price data?

This page provides NAII daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 1993-2026, downloadable in CSV format.

NAII Stock Price Trajectory (1993–2026)

When compared to Consumer Defensive sector peers NATR (+37.3% 1Y), MGPI (-46.1% 1Y), and USNA (-38.0% 1Y), NAII has underperformed the peer group average. Compare NAII vs NATR →

Date

Open

High

Low

Volume

Change %

2026-06-22

2.65

2.47

2.48

56K

-8.49%

2026-06-18

2.56

2.71

2.55

2.71

239K

+7.97%

2026-06-17

2.46

2.62

2.46

2.51

+0.40%

2026-06-16

2.61

2.67

2.48

2.50

75K

-0.79%

2026-06-15

2.55

2.66

2.50

2.52

46K

+2.44%

2026-06-12

2.48

2.68

2.46

32K

-0.81%

2026-06-11

2.51

2.62

2.48

13K

-1.20%

2026-06-10

2.53

2.67

2.50

2.51

+0.20%

2026-06-09

2.55

2.58

2.48

2.50

-0.60%

2026-06-08

2.51

2.67

2.50

2.52

14K

+0.80%

2026-06-05

2.51

2.52

2.46

2.50

-1.19%

2026-06-04

2.65

2.46

2.53

30K

+0.80%

2026-06-03

2.44

2.52

2.44

2.51

-0.40%

2026-06-02

2.60

2.51

2.52

14K

0.00%

2026-06-01

2.51

2.68

2.48

2.52

15K

-0.79%

2026-05-29

2.57

2.54

21K

-3.79%

2026-05-28

2.65

2.55

2.64

+0.38%

2026-05-27

2.64

2.75

2.50

2.63

16K

+3.14%

2026-05-26

2.52

2.63

2.52

2.55

28K

0.00%

2026-05-22

2.56

2.51

2.55

16K

-0.78%

2026-05-21

2.55

2.63

2.55

2.57

-0.77%

2026-05-20

2.53

2.62

2.50

2.59

10K

+1.17%

2026-05-19

2.50

2.59

2.42

2.56

45K

-1.16%

2026-05-18

2.74

2.59

15K

-2.63%

2026-05-15

2.62

2.68

2.60

2.66

-1.48%

2026-05-14

2.70

2.83

2.69

2.70

13K

-0.37%

2026-05-13

2.71

2.75

2.70

2.71

14K

0.00%

2026-05-12

2.82

2.69

2.71

+1.50%

2026-05-11

2.70

2.66

2.67

12K

0.00%

2026-05-08

2.60

2.80

2.60

2.67

-2.55%

2026-05-07

2.75

2.71

2.74

+0.74%

2026-05-06

2.67

2.75

2.65

2.72

10K

+4.21%

2026-05-05

2.68

2.71

2.58

2.61

46K

-2.25%

2026-05-04

2.70

2.76

2.66

2.67

19K

-1.84%

2026-05-01

2.69

2.74

2.66

2.72

+1.87%

2026-04-30

2.71

2.67

19K

0.00%

2026-04-29

2.67

2.78

2.67

-0.37%

2026-04-28

2.80

2.83

2.67

2.68

18K

-1.11%

2026-04-27

2.76

2.82

2.71

62K

+1.31%

2026-04-24

2.73

2.63

2.67

13K

-3.08%

2026-04-23

2.72

2.83

2.72

2.76

40K

-1.43%

2026-04-22

2.79

2.80

2.73

2.80

36K

+3.32%

2026-04-21

2.75

2.85

2.68

2.71

-1.81%

2026-04-20

2.70

2.77

2.70

2.76

27K

+3.56%

2026-04-17

2.71

2.77

2.67

-0.93%

2026-04-16

2.66

2.70

2.60

2.69

0.00%

2026-04-15

2.71

2.75

2.65

2.69

10K

-2.18%

2026-04-14

2.69

2.90

2.69

2.75

24K

+0.73%

2026-04-13

2.93

2.70

2.73

33K

-2.15%

2026-04-10

2.75

2.96

2.71

2.79

-1.06%

Natural Alternatives International, Inc. (NAII) Stock Price History

NAII Historical Performance

NAII Annual Returns

Download Historical Data

NAII Stock Price Trajectory (1993–2026)

NAII Historical Price Data · from 1993

Intrinsic Valuation

Historical Returns

DCA Calculator

Peer Comparison

Natural Alternatives International, Inc. (NAII) Stock Price History

NAII Historical Performance

NAII Annual Returns

Download Historical Data

NAII Stock Price Trajectory (1993–2026)

NAII Historical Price Data · from 1993

Intrinsic Valuation

Historical Returns

DCA Calculator

Peer Comparison