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Natural Alternatives - 38 Year Stock Price History | NAII

Historical daily share price chart and data for Natural Alternatives since 1987 adjusted for splits and dividends. The latest closing stock price for Natural Alternatives as of July 16, 2025 is 3.43.
  • The all-time high Natural Alternatives stock closing price was 26.00 on July 17, 1998.
  • The Natural Alternatives 52-week high stock price is 6.88, which is 100.6% above the current share price.
  • The Natural Alternatives 52-week low stock price is 2.57, which is 25.1% below the current share price.
  • The average Natural Alternatives stock price for the last 52 weeks is 4.27.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
  
Natural Alternatives Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 3.5674 4.2850 4.3150 2.6100 3.4300 -20.42%
2024 5.7155 6.5343 6.8799 4.1400 4.3100 -34.00%
2023 7.4967 8.2001 9.9200 5.4500 6.5300 -22.17%
2022 10.3103 12.6301 13.6200 7.1950 8.3900 -33.68%
2021 14.8730 10.6000 19.1500 10.6000 12.6500 19.46%
2020 7.6640 7.9200 10.9900 5.1500 10.5889 32.69%
2019 10.5975 9.8400 13.9751 7.6100 7.9800 -18.82%
2018 10.3221 10.3000 12.0500 9.1472 9.8300 -4.56%
2017 10.2095 11.4500 12.0250 8.4500 10.3000 -8.85%
2016 11.4035 10.4200 14.2900 6.9700 11.3000 9.28%
2015 6.0720 5.3201 10.4300 5.1000 10.3400 93.27%
2014 5.5547 5.6300 6.4800 5.0300 5.3500 -4.12%
2013 5.0715 5.1310 6.1200 4.2300 5.5800 11.16%
2012 6.7513 8.2100 10.4300 4.8000 5.0200 -43.21%
2011 5.4002 5.6400 9.2500 3.2000 8.8400 57.86%
2010 7.3061 7.5300 8.4500 5.2900 5.6000 -27.74%
2009 6.6326 6.1500 7.9000 5.7800 7.7500 27.05%
2008 7.5946 8.7800 9.1800 5.7000 6.1000 -29.32%
2007 7.7863 8.8300 9.2600 5.8100 8.6300 -0.46%
2006 8.7729 6.3700 10.8600 6.3400 8.6700 33.80%
2005 7.1867 8.7900 9.8500 5.2700 6.4800 -29.79%
2004 8.8710 6.4000 13.8000 6.1990 9.2300 44.22%
2003 4.7156 3.9500 6.4100 3.1690 6.4000 60.60%
2002 2.7401 2.4000 4.0800 1.6800 3.9850 77.11%
2001 2.1782 2.0938 3.0000 1.1800 2.2500 2.86%
2000 2.0495 3.1875 3.6250 1.3750 2.1875 -32.69%
1999 4.5680 11.0000 12.5000 2.5625 3.2500 -70.45%
1998 15.9527 10.4375 26.0000 9.3750 11.0000 3.53%
1997 8.2676 8.5000 10.7500 6.8750 10.6250 26.87%
1996 8.9946 8.2500 11.1250 7.1250 8.3750 4.69%
1995 7.1414 4.5000 12.6250 4.0625 8.0000 88.24%
1994 8.2604 11.8750 12.0000 4.0000 4.2500 -65.31%
1993 6.1031 5.0000 12.7500 4.0000 12.2500 127.91%
1992 4.0725 3.1250 6.1250 3.1250 5.3750 72.00%
1991 2.5329 2.1570 3.3125 1.5938 3.1250 44.88%
1990 3.0712 2.3438 4.3125 1.3760 2.1570 -7.97%
1989 2.4469 3.1250 3.1250 2.3438 2.3438 0.00%
1988 3.2868 3.9500 5.5000 2.3438 2.3438 -40.66%
Sector Industry Market Cap Revenue
Medical Medical - Drug Manufacturing $0.021B $0.114B
NATURAL ALTERNATIVES INTL INC is engaged in the formulation and production of encapsulated vitamins and nutrients and provides for its clients assistance with foreign registration of products, graphic design, brochures, formulations and a host of other marketing related services.
Stock Name Country Market Cap PE Ratio
Chugai Pharmaceutical (CHGCY) Japan $75.266B 28.24
Zoetis (ZTS) United States $68.055B 25.39
Takeda Pharmaceutical (TAK) Japan $46.933B 9.34
Daiichi Sankyo, - (DSNKY) Japan $43.096B 22.09
BeOne Medicines - (ONC) Cayman Islands $29.559B 0.00
Sandoz Group AG (SDZNY) Switzerland $24.954B 0.00
Summit Therapeutics (SMMT) United States $18.091B 0.00
Merck (MKKGY) Germany $16.498B 12.09
Shionogi (SGIOY) Japan $14.172B 14.20
United Therapeutics (UTHR) United States $13.227B 11.70
Neurocrine Biosciences (NBIX) United States $12.988B 44.49
Orion OYJ (ORINY) Finland $10.973B 29.68
IPSEN (IPSEY) France $10.239B 0.00
Stevanato Group S.p.A (STVN) Italy $7.753B 47.41
Corcept Therapeutics (CORT) United States $7.573B 61.56
Madrigal Pharmaceuticals (MDGL) United States $6.908B 0.00
Grifols, S.A (GRFS) Spain $6.717B 0.00
Ionis Pharmaceuticals (IONS) United States $6.685B 0.00
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $6.153B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.265B 16.01
Soleno Therapeutics (SLNO) United States $4.212B 0.00
Hypermarcas (HYPMY) Brazil $3.167B 20.83
Crinetics Pharmaceuticals (CRNX) United States $2.980B 0.00
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.592B 14.02
Catalyst Pharmaceuticals (CPRX) United States $2.555B 8.95
NewAmsterdam Pharma (NAMS) Netherlands $2.360B 0.00
Centessa Pharmaceuticals (CNTA) United Kingdom $2.014B 0.00
BioCryst Pharmaceuticals (BCRX) United States $1.825B 0.00
Ocular Therapeutix (OCUL) United States $1.767B 0.00
ARS Pharmaceuticals (SPRY) United States $1.725B 0.00
Endo (NDOI) United States $1.602B 0.00
Evotec AG (EVO) Germany $1.491B 0.00
Guardian Pharmacy Services (GRDN) United States $1.301B 0.00
Harrow (HROW) United States $1.261B 0.00
Aurinia Pharmaceuticals Inc (AUPH) Canada $1.215B 24.30
Ardelyx (ARDX) United States $1.077B 0.00
Enliven Therapeutics (ELVN) United States $1.062B 0.00
Collegium Pharmaceutical (COLL) United States $1.028B 5.55
Akebia Therapeutics (AKBA) United States $1.019B 0.00
Avadel Pharmaceuticals (AVDL) Ireland $1.004B 0.00
ProKidney (PROK) United States $0.986B 0.00
Verve Therapeutics (VERV) United States $0.982B 0.00
Dyne Therapeutics (DYN) United States $0.941B 0.00
Xeris Biopharma Holdings (XERS) United States $0.827B 0.00
Cronos Group (CRON) Canada $0.779B 0.00
KalVista Pharmaceuticals (KALV) United States $0.758B 0.00
Amylyx Pharmaceuticals (AMLX) United States $0.724B 0.00
Zevra Therapeutics (ZVRA) United States $0.699B 0.00
Xencor (XNCR) United States $0.601B 0.00
Relay Therapeutics (RLAY) United States $0.600B 0.00
USANA Health Sciences (USNA) United States $0.583B 12.68
Theravance Biopharma (TBPH) United States $0.577B 0.00
Elite Pharmaceuticals (ELTP) United States $0.568B 0.00
Bioventus (BVS) United States $0.542B 13.75
Oruka Therapeutics (ORKA) United States $0.534B 0.00
Organogenesis (ORGO) United States $0.511B 0.00
Siga Technologies (SIGA) United States $0.479B 10.00
Tourmaline Bio (TRML) United States $0.477B 0.00
Aquestive Therapeutics (AQST) United States $0.399B 0.00
Savara (SVRA) United States $0.396B 0.00
Altimmune (ALT) United States $0.339B 0.00
Rigel Pharmaceuticals (RIGL) United States $0.338B 9.13
Tonix Pharmaceuticals Holding (TNXP) United States $0.325B 0.00
Heron Therapeutics (HRTX) United States $0.311B 0.00
AleAnna (ANNA) United States $0.305B 0.00
Aldeyra Therapeutics (ALDX) United States $0.298B 0.00
Nektar Therapeutics (NKTR) United States $0.295B 0.00
Nature's Sunshine Products (NATR) United States $0.276B 25.34
Nanobiotix S.A (NBTX) France $0.251B 0.00
OmniAb (OABI) United States $0.238B 0.00
Esperion Therapeutics (ESPR) United States $0.224B 0.00
MediWound (MDWD) Israel $0.216B 0.00
Larimar Therapeutics (LRMR) United States $0.202B 0.00
China SXT Pharmaceuticals (SXTC) China $0.194B 0.00
4D Molecular Therapeutics (FDMT) United States $0.193B 0.00
Galectin Therapeutics (GALT) United States $0.177B 0.00
Profound Medical (PROF) Canada $0.171B 0.00
Aclaris Therapeutics (ACRS) United States $0.165B 0.00
Journey Medical (DERM) United States $0.163B 0.00
Liminatus Pharma (LIMN) United States $0.145B 0.00
Avita Medical (RCEL) United States $0.141B 0.00
Lexeo Therapeutics (LXEO) United States $0.137B 0.00
Lyell Immunopharma (LYEL) United States $0.135B 0.00
Inhibikase Therapeutics (IKT) United States $0.134B 0.00
Korro Bio (KRRO) United States $0.119B 0.00
Protara Therapeutics (TARA) United States $0.118B 0.00
Ironwood Pharmaceuticals (IRWD) United States $0.111B 0.00
Innate Pharma SA (IPHYF) France $0.110B 0.00
Champions Oncology (CSBR) United States $0.108B 17.73
Cardiol Therapeutics (CRDL) Canada $0.107B 0.00
Cassava Sciences (SAVA) United States $0.100B 0.00
Corbus Pharmaceuticals Holdings (CRBP) United States $0.099B 0.00
Jupiter Neurosciences (JUNS) United States $0.098B 0.00
Achieve Life Sciences (ACHV) Canada $0.092B 0.00
Nutriband (NTRB) United States $0.090B 0.00
Vivani Medical (VANI) United States $0.090B 0.00
VAXART, INC (VXRT) United States $0.085B 0.00
ESSA Pharma (EPIX) Canada $0.083B 0.00
Arch Biopartners (ACHFF) Canada $0.082B 0.00
Metagenomi (MGX) United States $0.078B 0.00
Rafael Holdings (RFL) United States $0.077B 0.00
Dominari Holdings (DOMH) United States $0.076B 0.00
Verrica Pharmaceuticals (VRCA) United States $0.074B 0.00
Fractyl Health (GUTS) United States $0.073B 0.00
Surrozen (SRZN) United States $0.072B 0.00
Pyxis Oncology (PYXS) United States $0.072B 0.00
PMV Pharmaceuticals (PMVP) United States $0.069B 0.00
Context Therapeutics (CNTX) United States $0.066B 0.00
Inotiv (NOTV) United States $0.064B 0.00
Assertio Holdings (ASRT) United States $0.063B 0.00
Klotho Neurosciences (KLTO) United States $0.062B 0.00
Allergy Therapeutics (AGYTF) United Kingdom $0.059B 0.00
Unicycive Therapeutics (UNCY) United States $0.058B 0.00
Wellgistics Health (WGRX) United States $0.058B 0.00
NRx Pharmaceuticals (NRXP) United States $0.054B 0.00
Cumberland Pharmaceuticals (CPIX) United States $0.052B 38.89
Avalo Therapeutics (AVTX) United States $0.052B 0.00
ElectroCore (ECOR) United States $0.052B 0.00
Gain Therapeutics (GANX) United States $0.051B 0.00
Century Therapeutics (IPSC) United States $0.050B 0.00
Prelude Therapeutics (PRLD) United States $0.046B 0.00
Mural Oncology (MURA) Ireland $0.043B 0.00
Acrivon Therapeutics (ACRV) United States $0.040B 0.00
Vivos Therapeutics (VVOS) United States $0.040B 0.00
Iterum Therapeutics (ITRM) Ireland $0.039B 0.00
Karyopharm Therapeutics (KPTI) United States $0.037B 0.00
PolyPid (PYPD) Israel $0.036B 0.00
Telomir Pharmaceuticals (TELO) United States $0.034B 0.00
SCYNEXIS (SCYX) United States $0.030B 0.00
FibroGen (FGEN) United States $0.030B 0.00
Enlivex Therapeutics (ENLV) Israel $0.029B 0.00
Tempest Therapeutics (TPST) United States $0.025B 0.00
Scienture Holdings (SCNX) United States $0.022B 0.00
Relmada Therapeutics (RLMD) United States $0.021B 0.00
VYNE Therapeutics (VYNE) United States $0.020B 0.00
BioLineRx (BLRX) Israel $0.019B 0.00
Reviva Pharmaceuticals Holdings (RVPH) United States $0.019B 0.00
MARKER THERAPEUTICS, INC (MRKR) United States $0.018B 0.00
Citius Pharmaceuticals (CTXR) United States $0.017B 0.00
ProPhase Labs (PRPH) United States $0.017B 0.00
Carisma Therapeutics (CARM) United States $0.017B 0.00
DURECT (DRRX) United States $0.016B 0.00
Plus Therapeutics (PSTV) United States $0.016B 0.00
Lipocine (LPCN) United States $0.016B 0.00
CASI Pharmaceuticals (CASI) China $0.016B 0.00
Mannatech (MTEX) United States $0.016B 0.00
Ernexa Therapeutics (ERNA) United States $0.014B 0.00
TherapeuticsMD (TXMD) United States $0.013B 0.00
BioVie (BIVI) United States $0.013B 0.00
Cosmos Health (COSM) United States $0.013B 0.00
Minerva Neurosciences (NERV) United States $0.013B 2.21
Ainos (AIMD) United States $0.012B 0.00
Phio Pharmaceuticals (PHIO) United States $0.011B 0.00
Lyra Therapeutics (LYRA) United States $0.011B 0.00
Incannex Healthcare (IXHL) Australia $0.010B 0.00
Addex Therapeutics (ADXN) Switzerland $0.010B 0.00
Kiora Pharmaceuticals (KPRX) United States $0.009B 0.00
Talphera (TLPH) United States $0.009B 0.00
XTL Biopharmaceuticals (XTLB) Israel $0.009B 0.00
Traws Pharma (TRAW) United States $0.008B 0.00
NLS Pharmaceutics (NLSP) Switzerland $0.008B 0.00
Biomerica (BMRA) United States $0.008B 0.00
Mangoceuticals (MGRX) United States $0.008B 0.00
Nuvilex (PMCB) United States $0.008B 0.00
TransCode Therapeutics (RNAZ) United States $0.007B 0.00
Indaptus Therapeutics (INDP) United States $0.007B 0.00
Sonoma Pharmaceuticals (SNOA) United States $0.006B 0.00
Qualigen Therapeutics (QLGN) United States $0.006B 0.00
Xenetic Biosciences (XBIO) United States $0.006B 0.00
Alaunos Therapeutics (TCRT) United States $0.006B 0.00
Aptorum Group (APM) United Kingdom $0.005B 0.00
Quoin Pharmaceuticals (QNRX) United States $0.005B 0.00
Redhill Biopharma (RDHL) Israel $0.004B 0.00
Clearmind Medicine (CMND) Canada $0.004B 0.00
SciSparc (SPRC) Israel $0.004B 0.00
SHINECO (SISI) China $0.004B 0.00
Galmed Pharmaceuticals (GLMD) Israel $0.003B 0.00
InMed Pharmaceuticals (INM) Canada $0.003B 0.00
CERo Therapeutics Holdings (CERO) United States $0.003B 0.00
XORTX Therapeutics (XRTX) Canada $0.003B 0.00
PainReform (PRFX) Israel $0.003B 0.00
60 Degrees Pharmaceuticals (SXTP) United States $0.003B 0.00
Aditxt (ADTX) United States $0.002B 0.00
Jaguar Animal Health (JAGX) United States $0.002B 0.00
Heatwurx (PCSA) United States $0.002B 0.00
Shuttle Pharmaceuticals Holdings (SHPH) United States $0.002B 0.00
Conduit Pharmaceuticals (CDT) United States $0.002B 0.00
TNF Pharmaceuticals (TNFA) United States $0.002B 0.00
Salarius Pharmaceuticals (SLRX) United States $0.001B 0.00
Universe Pharmaceuticals INC (UPC) China $0.000B 0.00
Indivior (INDV) United States $0.000B 8.99
4D Pharma (LBPS) United Kingdom $0.000B 0.00
MEI Pharma (MEIP) United States $0.000B 0.00
Patheon (PTHN) Netherlands $0.000B 0.00
RVL Pharmaceuticals (RVLP) United States $0.000B 0.00
Silence Therapeutics (SLN) United Kingdom $0.000B 0.00