Natural Alternatives International (NAII) Stock Chart & Stock Price History $3.50 +0.05 (+1.30%) As of 03/28/2025 04:00 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisChartCompetitorsEarningsFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Natural Alternatives International Stock Price Performance 5 Day Performance-2.51%1 Month Performance-14.63%3 Month Performance-18.79%6 Month Performance-38.92%Year-To-Date Performance-18.79%1 Year Performance-42.53% Receive NAII Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Natural Alternatives International and its competitors with MarketBeat's FREE daily newsletter. Email Address NAII Stock Chart for Sunday, March, 30, 2025 NAII Chart by TradingViewRemove Ads Natural Alternatives International Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization03/28/2025$3.45$3.50+1.45%$3.50$3.4310,494 shs$21.70 million03/27/2025$3.50$3.45-1.43%$3.50$3.4518,000 shs$21.39 million03/26/2025$3.59$3.50-2.51%$3.64$3.503,322 shs$21.70 million03/25/2025$3.69$3.59-2.71%$3.68$3.583,864 shs$22.25 million03/24/2025$3.89$3.69-5.14%$3.92$3.692,806 shs$22.87 million03/21/2025$3.62$3.89+7.61%$3.90$3.604,557 shs$24.11 million03/20/2025$3.70$3.62-2.30%$3.81$3.592,395 shs$22.41 million03/19/2025$3.53$3.70+4.82%$3.78$3.527,399 shs$22.94 million03/18/2025$3.47$3.53+1.73%$3.71$3.4754,775 shs$21.88 million03/17/2025$3.50$3.47-0.86%$3.50$3.475,550 shs$21.51 million Get the Latest News and Ratings for NAII and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Natural Alternatives International and its competitors with MarketBeat's FREE daily newsletter. 03/14/2025$3.58$3.50-2.23%$3.50$3.476,979 shs$21.70 million03/13/2025$3.41$3.58+4.99%$3.61$3.3812,098 shs$22.19 million03/12/2025$3.28$3.41+3.96%$3.44$3.2819,440 shs$21.14 million03/11/2025$3.81$3.28-13.91%$3.83$3.2724,592 shs$20.33 million03/10/2025$3.83$3.81-0.52%$3.82$3.802,657 shs$23.62 million03/07/2025$3.82$3.83+0.26%$3.89$3.823,005 shs$23.74 million03/06/2025$3.88$3.82-1.55%$3.88$3.751,901 shs$23.68 million03/05/2025$3.65$3.88+6.30%$4.01$3.679,282 shs$24.05 million03/04/2025$3.95$3.65-7.59%$4.03$3.6526,472 shs$22.63 million03/03/2025$4.10$3.95-3.66%$4.04$3.952,721 shs$24.49 million02/28/2025$3.99$4.10+2.76%$4.16$3.99658 shs$25.42 million Related Companies TScan Therapeutics Stock Chart Vigil Neuroscience Stock Chart Zura Bio Stock Chart Climb Bio Stock Chart Invivyd Stock Chart SELLAS Life Sciences Group Stock Chart Alpha Cognition Stock Chart Cabaletta Bio Stock Chart Rani Therapeutics Stock Chart Vistagen Therapeutics Stock Chart Receive NAII Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Natural Alternatives International and its competitors with MarketBeat's FREE daily newsletter. 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