Natural Alternatives International (NAII) Short Interest Ratio & Short Volume $3.34 +0.04 (+1.21%) As of 04:00 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsEarningsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Natural Alternatives International Short Interest DataNatural Alternatives International (NAII) has a short interest of 6,800 shares, representing 0.14% of the float (the number of shares available for trading by the public). This marks a 61.90% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.5, indicating that it would take 0.5 days of the average trading volume of 8,968 shares to cover all short positions.Current Short Interest6,800 sharesPrevious Short Interest4,200 sharesChange Vs. Previous Month+61.90%Dollar Volume Sold Short$20,400.00Short Interest Ratio0.5 Days to CoverLast Record DateApril 30, 2025Outstanding Shares6,179,000 sharesFloat Size4,880,000 sharesShort Percent of Float0.14%Today's Trading Volume1,421 sharesAverage Trading Volume8,968 sharesToday's Volume Vs. Average16% 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 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 4/30/20256,800 shares $20,400.00 +61.9%0.1%0.5 $3.00 4/15/20254,200 shares $11,844.00 +13.5%0.1%0.4 $2.82 3/31/20253,700 shares $12,728.00 -17.8%0.1%0.5 $3.44 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 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. 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 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 $6.65Vladimir Lenin was right… (Ad)The Magnificent 7 could be in for a world of pain… And the insiders know it. It’s why Jeff Bezos just sold $3 billion of Amazon… it’s why Nvidia’s CEO just sold $713 million... and it’s why Zuckerberg just sold $1.3 billion in Meta stock. The financial establishment doesn’t want you to know about this… but a controversial new documentary just pulled back the curtain and exposed what’s really going on. It’s called The Final Frontier.Including the name of the #1 company to buy. 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 $7.20 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 $18.85Vladimir Lenin was right… (Ad)The Magnificent 7 could be in for a world of pain… And the insiders know it. It’s why Jeff Bezos just sold $3 billion of Amazon… it’s why Nvidia’s CEO just sold $713 million... and it’s why Zuckerberg just sold $1.3 billion in Meta stock. The financial establishment doesn’t want you to know about this… but a controversial new documentary just pulled back the curtain and exposed what’s really going on. It’s called The Final Frontier.Including the name of the #1 company to buy. 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 $16.83 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 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 April 30th, investors have sold 6,800 shares of NAII short. 0.14% 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 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. 0.14% 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 in the month of April. As of April 30th, there was short interest totaling 6,800 shares, an increase of 61.9% from the previous total of 4,200 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 6,179,000 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? 0.14% 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: OncoCyte Co. (1.63%), Genenta Science S.p.A. (0.02%), CervoMed Inc. (16.03%), Pyxis Oncology, Inc. (16.42%), Telomir Pharmaceuticals, Inc. (12.93%), ESSA Pharma Inc. (1.60%), Jasper Therapeutics, Inc. (14.56%), Adaptimmune Therapeutics plc (1.73%), I-Mab (0.32%), Sutro Biopharma, Inc. (6.32%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 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 $0.04 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 April, 30 2025. More Short Interest Resources from MarketBeat Related Companies OCX Short Interest GNTA Short Interest CRVO Short Interest PYXS Short Interest TELO Short Interest EPIX Short Interest JSPR Short Interest ADAP Short Interest IMAB Short Interest STRO 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 5/22/2025 by MarketBeat.com Staff From Our PartnersBuffett’s $325 Billion Cash Problem — Solved by Gold?A bombshell announcement is just weeks away — and it could send shockwaves through the gold market. Most inves...Golden Portfolio | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredElon just did WHAT!?As you may recall, Biden and the Fed were working on a central bank digital currency, or CBDC. 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