Natural Alternatives International (NAII) Short Interest Ratio & Short Volume $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 Short Interest Stock AnalysisChartCompetitorsEarningsFinancialsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Natural Alternatives International Short Interest DataNatural Alternatives International (NAII) has a short interest of 4,500 shares, representing 0.09% of the float (the number of shares available for trading by the public). This marks a 73.08% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.7, indicating that it would take 0.7 days of the average trading volume of 7,277 shares to cover all short positions.Current Short Interest4,500 sharesPrevious Short Interest2,600 sharesChange Vs. Previous Month+73.08%Dollar Volume Sold Short$15,750.00Short Interest Ratio0.7 Days to CoverLast Record DateMarch 15, 2025Outstanding Shares6,199,000 sharesFloat Size4,880,000 sharesShort Percent of Float0.09%Today's Trading Volume10,494 sharesAverage Trading Volume7,277 sharesToday's Volume Vs. Average144% Short Selling Natural Alternatives International? Sign up to receive the latest short interest report for Natural Alternatives International and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartNAII Short Interest Over TimeNAII Days to Cover Over TimeNAII Percentage of Float Shorted Over Time Remove Ads Natural Alternatives International Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 3/15/20254,500 shares $15,750.00 +73.1%0.1%0.7 $3.50 2/28/20252,600 shares $10,660.00 -25.7%0.1%0.4 $4.10 2/15/20253,500 shares $14,525.00 -5.4%0.1%0.5 $4.15 1/31/20253,700 shares $15,873.00 +5.7%0.1%0.5 $4.29 1/15/20253,500 shares $14,875.00 -23.9%0.1%0.4 $4.25 12/31/20244,600 shares $19,826.00 -6.1%0.1%0.5 $4.31 12/15/20244,900 shares $21,070.00 -50.5%0.1%0.4 $4.30 11/30/20249,900 shares $46,431.00 +2.1%0.2%0.9 $4.69 11/15/20249,700 shares $43,941.00 +18.3%0.2%0.9 $4.53 10/31/20248,200 shares $37,474.00 +78.3%0.2%0.7 $4.57 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. 10/15/20244,600 shares $20,332.00 -70.9%0.1%0.5 $4.42 9/30/202415,800 shares $90,534.00 -12.7%0.3%1.8 $5.73 9/15/202418,100 shares $112,401.00 +402.8%0.4%3.1 $6.21 8/31/20243,600 shares $19,548.00 -7.7%0.1%0.6 $5.43 8/15/20243,900 shares $21,255.00 -31.6%0.1%0.9 $5.45 7/31/20245,700 shares $32,661.00 +39.0%0.1%1.5 $5.73 7/15/20244,100 shares $23,083.00 -6.8%0.1%1.1 $5.63 6/30/20244,400 shares $26,488.00 +4.8%0.1%1.1 $6.02 6/15/20244,200 shares $27,636.00 -4.6%0.1%1 $6.58 5/31/20244,400 shares $28,380.00 -26.7%0.1%0.9 $6.45 5/15/20246,000 shares $40,740.00 -25.9%0.1%1.2 $6.79 4/30/20248,100 shares $50,625.00 -30.2%0.2%1.7 $6.25 4/15/202411,600 shares $76,444.00 -17.1%0.2%2.1 $6.59 3/31/202414,000 shares $85,260.00 -5.4%0.3%2.5 $6.09 3/15/202414,800 shares $83,768.00 +41.0%0.3%2.8 $5.66 2/29/202410,500 shares $63,420.00 -16.7%0.2%2.1 $6.04 2/15/202412,600 shares $76,998.60 -12.5%0.3%2.4 $6.11 1/31/202414,400 shares $89,424.00 +28.6%0.3%2.8 $6.21 1/15/202411,200 shares $71,568.00 -1.8%0.2%1.8 $6.39 12/31/202311,400 shares $74,442.00 -9.5%0.2%1.7 $6.53 12/15/202312,600 shares $82,908.00 +1.6%0.3%1.7 $6.58 11/30/202312,400 shares $72,168.00 -10.1%0.3%1.5 $5.82 11/15/202313,800 shares $83,214.00 -15.3%0.3%1.8 $6.03 10/31/202316,300 shares $98,615.00 +66.3%0.3%1.6 $6.05 10/15/20239,800 shares $62,230.00 -7.6%0.2%0.9 $6.35 9/30/202310,600 shares $68,794.00 -37.3%0.2%1.1 $6.49 9/15/202316,900 shares $112,385.00 +141.4%0.4%1.7 $6.65 8/31/20237,000 shares $43,400.00 +27.3%0.2%0.8 $6.20 8/15/20235,500 shares $38,115.00 +3.8%0.1%0.6 $6.93 7/31/20235,300 shares $38,160.00 No Change0.1%0.7 $7.20Now I look stupid. Real stupid... (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you. 7/15/20235,300 shares $37,259.00 +1.9%0.1%0.8 $7.03 6/30/20235,200 shares $37,440.00 -21.2%0.1%0.9 $7.20 6/15/20236,600 shares $49,962.00 -15.4%0.1%1.3 $7.57 5/31/20237,800 shares $58,188.00 +11.4%0.2%1.3 $7.46 5/15/20237,000 shares $53,200.00 -30.7%0.2%1 $7.60 4/30/202310,100 shares $89,991.00 +21.7%0.2%1.2 $8.91 4/15/20238,300 shares $72,625.00 -9.8%0.2%1.1 $8.75 3/31/20239,200 shares $84,824.00 -34.8%0.2%1.1 $9.22 3/15/202314,100 shares $124,785.00 +53.3%0.3%1.5 $8.85 2/28/20239,200 shares $83,720.00 +9.5%0.2%1 $9.10 2/15/20238,400 shares $72,660.00 -1.2%0.2%0.9 $8.65 1/31/20238,500 shares $75,650.00 -18.3%0.2%0.9 $8.90 1/15/202310,400 shares $101,400.00 +5.1%0.2%1.3 $9.75 12/30/20229,900 shares $83,061.00 -2.0%0.2%1.2 $8.39 12/15/202210,100 shares $80,295.00 No Change0.2%1.2 $7.95 11/30/202210,100 shares $74,235.00 +2.0%0.2%1.2 $7.35 11/15/20229,900 shares $80,883.00 -10.0%0.2%1.3 $8.17 10/31/202211,000 shares $98,120.00 -6.0%0.2%1.4 $8.92 10/15/202211,700 shares $108,342.00 -19.9%0.3%1.5 $9.26 9/30/202214,600 shares $135,342.00 -3.3%0.3%1.9 $9.27 9/15/202215,100 shares $174,858.00 +0.7%0.3%2.1 $11.58 8/31/202215,000 shares $172,500.00 +2.0%0.3%2.5 $11.50 8/15/202214,700 shares $153,615.00 +9.7%0.3%2.5 $10.45 7/31/202213,400 shares $135,500.80 -2.9%0.3%1.9 $10.11 7/15/202213,800 shares $135,516.00 -6.8%0.3%1.4 $9.82 6/30/202214,800 shares $154,512.00 -8.6%0.3%1.1 $10.44 6/15/202216,200 shares $165,726.00 +1.9%0.4%1.2 $10.23 5/31/202215,900 shares $166,950.00 -37.9%0.3%1.2 $10.50 5/15/202225,600 shares $268,288.00 +84.2%0.6%1.7 $10.48 4/30/202213,900 shares $136,081.00 +73.8%0.3%0.8 $9.79 4/15/20228,000 shares $80,400.00 +8.1%0.2%0.5 $10.05 3/31/20227,400 shares $85,248.00 -20.4%0.2%0.5 $11.52 3/15/20229,300 shares $99,324.00 +5.7%0.2%0.5 $10.68 2/28/20228,800 shares $97,328.00 +7.3%0.2%0.4 $11.06 2/15/20228,200 shares $100,368.00 -3.5%0.2%0.4 $12.24 1/31/20228,500 shares $111,307.50 -19.1%0.2%0.4 $13.10 1/15/202210,500 shares $140,280.00 -30.0%0.2%0.5 $13.36 12/31/202115,000 shares $189,750.00 +72.4%0.3%0.7 $12.65 12/15/20218,700 shares $110,490.00 +10.1%0.2%0.4 $12.70 11/30/20217,900 shares $102,147.00 -58.0%0.2%0.3 $12.93 11/15/202118,800 shares $270,344.00 +118.6%0.4%0.6 $14.38 10/29/20218,600 shares $108,360.00 -45.2%0.2%0.3 $12.60 10/15/202115,700 shares $212,107.00 -29.9%0.3%0.4 $13.51 9/30/202122,400 shares $302,400.00 +103.6%0.5%0.6 $13.50 9/15/202111,000 shares $179,740.00 +26.4%0.2%0.3 $16.34 8/31/20218,700 shares $136,938.00 -15.5%0.2%0.2 $15.74 8/13/202110,300 shares $194,155.00 -28.0%0.2%0.3 $18.85 7/30/202114,300 shares $253,253.00 -11.2%0.3%0.5 $17.71 7/15/202116,100 shares $288,351.00 +312.8%0.4%0.6 $17.91 6/30/20213,900 shares $65,637.00 -11.4%0.1%0.1 $16.83Now I look stupid. Real stupid... (Ad)I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we are, a quarter of a century later, almost to the exact day, and it’s happening again. Here’s the full story for you. 6/15/20214,400 shares $60,940.00 +12.8%0.1%0.2 $13.85 5/28/20213,900 shares $53,781.00 -20.4%0.1%0.1 $13.79 5/14/20214,900 shares $71,540.00 +157.9%0.1%0.2 $14.60 4/30/20211,900 shares $30,229.00 -57.8%0.0%0.1 $15.91 4/15/20214,500 shares $76,365.00 -35.7%0.1%0.1 $16.97 3/31/20217,000 shares $108,150.00 +59.1%0.2%0.2 $15.45 3/15/20214,400 shares $73,964.00 -26.7%0.1%0.1 $16.81 2/26/20216,000 shares $99,960.00 +9.1%0.1%0.2 $16.66 2/12/20215,500 shares $97,130.00 +52.8%0.1%0.2 $17.66 1/29/20213,600 shares $51,660.00 -28.0%0.1%0.1 $14.35 1/15/20215,000 shares $64,000.00 -41.2%0.1%0.2 $12.80 12/31/20208,500 shares $89,887.50 +84.8%0.2%0.4 $10.58 12/15/20204,600 shares $45,540.00 -43.2%0.1%0.3 $9.90 11/30/20208,100 shares $81,891.00 No Change0.2%0.5 $10.11 11/15/20208,100 shares $83,835.00 +179.3%0.2%0.5 $10.35 10/30/20202,900 shares $22,562.00 -45.3%0.1%0.3 $7.78 10/15/20205,300 shares $41,870.00 +51.4%0.1%0.4 $7.90 9/30/20203,500 shares $26,425.00 -32.7%0.1%0.3 $7.55 9/15/20205,200 shares $35,204.00 -35.0%0.1%0.4 $6.77 8/31/20208,000 shares $64,000.00 +70.2%0.1%0.6 $8.00 8/14/20204,700 shares $33,182.00 +30.6%0.1%0.4 $7.06 7/31/20203,600 shares $24,660.00 +63.6%0.1%0.3 $6.85 7/15/20202,200 shares $15,224.00 -38.9%0.0%0.4 $6.92 6/30/20203,600 shares $26,208.00 +71.4%0.1%0.6 $7.28 6/15/20202,100 shares $13,629.00 +61.5%0.0%0.3 $6.49 5/29/20201,300 shares $9,451.00 -7.1%0.0%0.2 $7.27 5/15/20201,400 shares $8,274.00 -12.5%0.0%0.2 $5.91 4/30/20201,600 shares $11,040.00 -59.0%0.0%0.2 $6.90 4/15/20203,900 shares $28,080.00 +225.0%0.1%0.4 $7.20 3/31/20201,200 shares $8,604.00 -45.5%0.0%0.1 $7.17 NAII Short Interest - Frequently Asked Questions What is Natural Alternatives International's current short interest? Short interest is the volume of Natural Alternatives International shares that have been sold short but have not yet been closed out or covered. As of March 15th, investors have sold 4,500 shares of NAII short. 0.09% of Natural Alternatives International's shares are currently sold short. Learn More on Natural Alternatives International's current short interest. What is a good short interest ratio for Natural Alternatives International? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. NAII shares currently have a short interest ratio of 1.0. Learn More on Natural Alternatives International's short interest ratio. What is a good short interest percentage for Natural Alternatives International? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 0.09% of Natural Alternatives International's floating shares are currently sold short. Is Natural Alternatives International's short interest increasing or decreasing? Natural Alternatives International saw a increase in short interest during the month of March. As of March 15th, there was short interest totaling 4,500 shares, an increase of 73.1% from the previous total of 2,600 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. What is Natural Alternatives International's float size? Natural Alternatives International currently has issued a total of 6,199,000 shares. Some of Natural Alternatives International's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Natural Alternatives International currently has a public float of 4,880,000 shares. How does Natural Alternatives International's short interest compare to its competitors? 0.09% of Natural Alternatives International's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Natural Alternatives International: TScan Therapeutics, Inc. (4.39%), Vigil Neuroscience, Inc. (1.85%), Zura Bio Limited (12.00%), Invivyd, Inc. (8.77%), SELLAS Life Sciences Group, Inc. (11.29%), Cabaletta Bio, Inc. (14.14%), Rani Therapeutics Holdings, Inc. (10.35%), Vistagen Therapeutics, Inc. (2.28%), HilleVax, Inc. (7.03%), Adagene Inc. (0.05%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($26.28 billion), iShares 20+ Year Treasury Bond ETF ($9.53 billion), MicroStrategy Incorporated ($8.50 billion), Apollo Global Management, Inc. ($4.86 billion), Super Micro Computer, Inc. ($4.85 billion), Charter Communications, Inc. ($4.28 billion), Capital One Financial Co. ($4.08 billion), AppLovin Co. ($3.82 billion), Canadian Natural Resources Limited ($3.78 billion), and Schlumberger Limited ($2.87 billion). View all of the most shorted stocks. What does it mean to sell short Natural Alternatives International stock? Short selling NAII is an investing strategy that aims to generate trading profit from Natural Alternatives International as its price is falling. NAII shares are trading up $0.05 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Natural Alternatives International? A short squeeze for Natural Alternatives International occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of NAII, which in turn drives the price of the stock up even further. How often is Natural Alternatives International's short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including NAII, twice per month. The most recent reporting period available is March, 15 2025. More Short Interest Resources from MarketBeat Related Companies TCRX Short Interest VIGL Short Interest ZURA Short Interest IVVD Short Interest SLS Short Interest CABA Short Interest RANI Short Interest VTGN Short Interest HLVX Short Interest ADAG Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:NAII) was last updated on 3/30/2025 by MarketBeat.com Staff From Our PartnersTrump Treasure April 19Thanks to President Trump… A $900 investment across5 specific cryptos… Could gain 12,000% so quickly tha...Paradigm Press | SponsoredA market crash is coming—here’s whenThe stock market cycle I've used to identify the most likely day of the next market crash is the exact same in...Chaikin Analytics | SponsoredThe Dirty Secret About Gold Mining Stocks...Here's something most gold analysts won't tell you: 90% of gold mining companies actually destroy sharehold...Golden Portfolio | SponsoredNvidia’s CEO: “This Will Be a Multitrillion-Dollar Industry."If you missed out on the big boom in Nvidia… Listen up, because according to Nvidia's own CEO… Elon Musk...Brownstone Research | SponsoredTrump doesn’t give a damnPorter Stansberry: “I met with Trump’s biggest backers… they’re scooping up these 10 stocks” I recently met...Porter & Company | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. 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