Rio Tinto (RIO) Short Interest Ratio & Short Volume $62.51 +0.03 (+0.04%) Closing price 03:59 PM EasternExtended Trading$62.68 +0.17 (+0.28%) As of 07:57 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsDividendHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Rio Tinto Short Interest DataRio Tinto (RIO) has a short interest of 8.47 million shares. This marks a -9.41% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.4, indicating that it would take 2.4 days of the average trading volume of 2.52 million shares to cover all short positions.Current Short Interest8,470,000 sharesPrevious Short Interest9,350,000 sharesChange Vs. Previous Month-9.41%Dollar Volume Sold Short$518.45 millionShort Interest Ratio2.4 Days to CoverLast Record DateAugust 15, 2025Outstanding Shares1,254,160,000 sharesPercentage of Shares Shorted0.68%Today's Trading Volume1,484,207 sharesAverage Trading Volume2,515,056 sharesToday's Volume Vs. Average59% Short Selling Rio Tinto? Sign up to receive the latest short interest report for Rio Tinto and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartRIO Short Interest Over TimeRIO Days to Cover Over TimeRIO Percentage of Float Shorted Over Time Rio Tinto Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/15/20258,470,000 shares $518.45 million -9.4%N/A2.4 $61.21 7/31/20259,350,000 shares $558.63 million +15.9%0.7%2.6 $59.75 7/15/20258,070,000 shares $472.05 million -10.6%N/A2.4 $58.50 6/30/20259,030,000 shares $526.90 million -7.3%0.7%2.6 $58.35 6/15/20259,740,000 shares $564.48 million +18.2%0.8%3 $57.96 5/31/20258,240,000 shares $489.79 million +4.7%0.7%2.6 $59.44 5/15/20257,870,000 shares $493.53 million +26.3%0.6%2.5 $62.71 4/30/20256,230,000 shares $369.69 million -1.6%N/A2 $59.34 4/15/20256,330,000 shares $361.80 million -15.4%0.5%1.9 $57.16 3/31/20257,480,000 shares $449.60 million -12.8%0.6%2.2 $60.11 Get the Latest News and Ratings for RIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Rio Tinto and its competitors with MarketBeat's FREE daily newsletter. 3/15/20258,580,000 shares $541.22 million +3.5%0.7%2.8 $63.08 2/28/20258,290,000 shares $501.59 million +9.7%0.7%2.6 $60.51 2/15/20257,560,000 shares $479.12 million -11.5%0.6%2.5 $63.38 1/31/20258,540,000 shares $515.76 million +3.5%N/A2.8 $60.39 1/15/20258,250,000 shares $498.96 million -10.1%N/A2.9 $60.48 12/31/20249,180,000 shares $539.88 million +1.2%N/A3.2 $58.81 12/15/20249,070,000 shares $564.24 million +21.7%N/A3 $62.21 11/30/20247,450,000 shares $468.16 million -17.1%N/A2.6 $62.84 11/15/20248,990,000 shares $548.21 million -2.8%N/A3.2 $60.98 10/31/20249,250,000 shares $600.23 million -3.0%N/A3.3 $64.89 10/15/20249,540,000 shares $634.12 million +1.8%N/A3.3 $66.47 9/30/20249,370,000 shares $666.82 million +7.2%N/A3.3 $71.17 9/15/20248,740,000 shares $546.69 million -1.9%N/A3.4 $62.55 8/31/20248,910,000 shares $563.74 million +14.4%N/A3.7 $63.27 8/15/20247,790,000 shares $488.82 million +16.1%N/A3.3 $62.75 7/31/20246,710,000 shares $437.16 million -6.4%N/A2.7 $65.15 7/15/20247,170,000 shares $484.26 million -8.8%N/A3 $67.54 6/30/20247,860,000 shares $518.21 million +2.5%N/A3.2 $65.93 6/15/20247,670,000 shares $510.13 million -0.1%N/A2.9 $66.51 5/31/20247,680,000 shares $538.21 million +0.3%N/A2.6 $70.08 5/15/20247,660,000 shares $538.77 million +11.5%N/A2.5 $70.34 4/30/20246,870,000 shares $465.99 million +25.4%N/A2.3 $67.83 4/15/20245,480,000 shares $365.95 million -3.0%N/A1.8 $66.78 3/31/20245,650,000 shares $360.13 million -9.6%N/A1.9 $63.74 3/15/20246,250,000 shares $388.50 million -7.1%N/A2.3 $62.16 2/29/20246,730,000 shares $434.29 million -4.9%N/A2.5 $64.53 2/15/20247,080,000 shares $478.18 million +18.0%N/A2.6 $67.54 1/31/20246,000,000 shares $415.74 million +6.6%N/A2.3 $69.29 1/15/20245,630,000 shares $395.11 million +0.9%N/A2 $70.18 12/31/20235,580,000 shares $415.49 million -10.0%N/A1.9 $74.46 12/15/20236,200,000 shares $449.19 million -5.1%N/A2 $72.45 11/30/20236,530,000 shares $451.16 million -6.2%N/A2.1 $69.09 11/15/20236,960,000 shares $472.34 million -13.4%N/A2.3 $67.87 10/31/20238,040,000 shares $517.29 million -11.3%N/A2.5 $64.34 10/15/20239,060,000 shares $565.16 million -15.3%N/A2.8 $62.38 9/30/202310,700,000 shares $680.95 million -9.3%N/A3.6 $63.64 9/15/202311,790,000 shares $776.37 million +3.8%N/A4.2 $65.85 8/31/202311,360,000 shares $710 million +24.4%N/A4 $62.50 8/15/20239,130,000 shares $536.20 million +19.7%N/A2.9 $58.73 7/31/20237,630,000 shares $507.85 million +2.3%N/A2.5 $66.56 7/15/20237,460,000 shares $511.23 million +0.8%N/A2.3 $68.53 6/30/20237,400,000 shares $472.38 million +5.7%N/A2.3 $63.84 6/15/20237,000,000 shares $478.45 million -3.9%N/A2.1 $68.35 5/31/20237,280,000 shares $429.81 million +13.8%N/A2 $59.04 5/15/20236,400,000 shares $402.62 million -11.0%N/A1.8 $62.91 4/30/20237,190,000 shares $460.09 million -11.2%N/A2.1 $63.99 4/15/20238,100,000 shares $555.50 million +12.3%N/A2.4 $68.58 3/31/20237,210,000 shares $494.61 million -26.8%N/A2.2 $68.60 3/15/20239,850,000 shares $648.82 million -8.9%N/A3.1 $65.87 2/28/202310,810,000 shares $753.78 million +1.3%N/A3.7 $69.73 2/15/202310,670,000 shares $794.17 million -2.7%N/A3.7 $74.43 1/31/202310,970,000 shares $870.47 million -13.9%N/A3.6 $79.35 1/15/202312,740,000 shares $987.99 million +1.0%N/A3.7 $77.55 12/30/202212,610,000 shares $897.83 million -7.8%N/A3.5 $71.20 12/15/202213,670,000 shares $963.05 million +2.2%N/A3.4 $70.45 11/30/202213,370,000 shares $917.72 million -0.8%N/A3.1 $68.64 11/15/202213,480,000 shares $879.97 million +15.7%N/A3.2 $65.28 10/31/202211,650,000 shares $621.53 million -1.4%N/A2.7 $53.35 10/15/202211,820,000 shares $634.85 million +8.2%N/A3 $53.71 9/30/202210,920,000 shares $601.26 million -26.3%N/A2.8 $55.06 9/15/202214,820,000 shares $820.29 million +6.4%N/A4.1 $55.35 8/31/202213,930,000 shares $784.12 million +1.5%N/A3.9 $56.29 8/15/202213,730,000 shares $803.34 million -10.8%N/A3.9 $58.51 7/31/202215,400,000 shares $939.86 million -2.6%N/A4.5 $61.03 7/15/202215,810,000 shares $876.03 million +8.2%N/A4.4 $55.41 6/30/202214,610,000 shares $891.21 million +11.0%N/A4.1 $61.00 6/15/202213,160,000 shares $914.88 million +1.2%N/A3.9 $69.52 5/31/202213,000,000 shares $954.72 million +8.5%N/A3.4 $73.44 5/15/202211,980,000 shares $788.40 million +15.9%N/A2.7 $65.81 4/30/202210,340,000 shares $735.38 million +7.6%N/A2.3 $71.12 4/15/20229,610,000 shares $786.77 million -12.6%N/A2.1 $81.87 3/31/202211,000,000 shares $884.40 million -6.6%N/A2.2 $80.40 3/15/202211,780,000 shares $813.76 million -10.6%N/A2.4 $69.08 2/28/202213,170,000 shares $1.03 billion -1.1%N/A2.9 $78.58 2/15/202213,320,000 shares $1.03 billion -6.0%N/A3.2 $77.13 1/31/202214,170,000 shares $1.01 billion -3.0%N/A3.5 $71.40 1/15/202214,610,000 shares $1.10 billion +10.4%N/A3.9 $75.40 12/31/202113,230,000 shares $885.62 million -6.2%N/A3.8 $66.94 12/15/202114,110,000 shares $910.80 million +8.7%N/A4 $64.55 11/30/202112,980,000 shares $813.72 million -1.7%N/A3.3 $62.69 11/15/202113,200,000 shares $813.38 million +5.1%N/A3.7 $61.62 10/29/202112,560,000 shares $794.67 million +2.0%N/A3.6 $63.27 10/15/202112,320,000 shares $867.70 million +8.3%N/A3.7 $70.43 9/30/202111,380,000 shares $760.41 million -0.9%N/A3.7 $66.82 9/15/202111,480,000 shares $844.47 million -0.2%N/A4.2 $73.56 8/31/202111,500,000 shares $863.31 million -9.6%N/A5 $75.07 8/13/202112,720,000 shares $1.01 billion +5.3%N/A5.5 $79.44 7/30/202112,080,000 shares $1.04 billion +8.3%N/A5.2 $86.31 7/15/202111,150,000 shares $961.69 million +6.7%N/A4.8 $86.25 6/30/202110,450,000 shares $876.65 million +2.1%N/A4.3 $83.89 6/15/202110,240,000 shares $884.94 million +7.0%N/A4 $86.42 5/28/20219,570,000 shares $836.71 million -6.3%N/A3.7 $87.43 5/14/202110,210,000 shares $919.10 million -3.5%0.8%3.8 $90.02 4/30/202110,580,000 shares $926.07 million -0.4%0.9%4 $87.53 4/15/202110,620,000 shares $867.87 million +15.4%0.9%4.4 $81.72 3/31/20219,200,000 shares $716.50 million +12.2%0.7%3.9 $77.88 3/15/20218,200,000 shares $666.41 million +2.0%0.7%3.7 $81.27 2/26/20218,040,000 shares $724.65 million +6.2%0.6%3.8 $90.13 2/12/20217,570,000 shares $622.86 million +30.7%0.6%3.8 $82.28 1/29/20215,790,000 shares $454.57 million -20.7%0.5%3 $78.51 1/15/20217,300,000 shares $619.33 million +4.3%0.6%3.7 $84.84 12/31/20207,000,000 shares $531.93 million -8.0%0.6%3.4 $75.99 12/15/20207,610,000 shares $566.11 million -9.3%0.6%3.7 $74.39 11/30/20208,390,000 shares $554.16 million -10.6%0.7%3.9 $66.05 11/15/20209,380,000 shares $586.34 million +0.4%0.8%4.6 $62.51 10/30/20209,340,000 shares $529.11 million -23.4%0.8%4.6 $56.65 10/15/202012,190,000 shares $743.59 million -3.3%1.0%6.1 $61.00 9/30/202012,610,000 shares $761.52 million +4.0%1.0%6 $60.39 9/15/202012,120,000 shares $793.01 million -0.5%1.0%6 $65.43 RIO Short Interest - Frequently Asked Questions What is Rio Tinto's current short interest? Short interest is the volume of Rio Tinto shares that have been sold short but have not yet been covered or closed out. As of August 15th, investors have sold 8,470,000 shares of RIO short. Learn More on Rio Tinto's current short interest. What is a good short interest ratio for Rio Tinto? 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. RIO shares currently have a short interest ratio of 2.0. Learn More on Rio Tinto's short interest ratio. Which institutional investors are shorting Rio Tinto? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Rio Tinto: LMR Partners LLP, Group One Trading LLC, Bluefin Capital Management LLC, BNP Paribas Financial Markets, Jane Street Group LLC, Caption Management LLC, Qube Research & Technologies Ltd, Maven Securities LTD, Walleye Capital LLC, Walleye Trading LLC, Hsbc Holdings PLC, Capital Fund Management S.A., JPMorgan Chase & Co., Garda Capital Partners LP, and Portman Square Capital LLP. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is Rio Tinto's short interest increasing or decreasing? Rio Tinto saw a decrease in short interest in August. As of August 15th, there was short interest totaling 8,470,000 shares, a decrease of 9.4% from the previous total of 9,350,000 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. How does Rio Tinto's short interest compare to its competitors? Here is how the short interest of companies in the sector of "basic materials" compare to Rio Tinto: Buenaventura Mining Company Inc. (2.09%), BHP Group Limited Sponsored ADR (0.65%), Wheaton Precious Metals Corp. (1.32%), Cameco Corporation (3.69%), Teck Resources Ltd (3.15%), Reliance, Inc. (1.93%), MP Materials Corp. (18.88%), OR Royalties Inc. (1.85%), HudBay Minerals Inc (2.73%), NexGen Energy (17.60%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Lucid Group, Inc. ($8.00 billion), Spotify Technology ($5.48 billion), AppLovin Corporation ($5.11 billion), Reddit Inc. ($5.02 billion), Coinbase Global, Inc. ($3.99 billion), Charter Communications, Inc. ($3.89 billion), Live Nation Entertainment, Inc. ($3.18 billion), Seagate Technology Holdings PLC ($2.59 billion), ResMed Inc. ($2.55 billion), and Rocket Lab Corporation ($2.52 billion). View all of the most shorted stocks. What does it mean to sell short Rio Tinto stock? Short selling RIO is an investing strategy that aims to generate trading profit from Rio Tinto as its price is falling. RIO shares are trading up $0.03 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 Rio Tinto? A short squeeze for Rio Tinto occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of RIO, which in turn drives the price of the stock up even further. How often is Rio Tinto'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 RIO, twice per month. The most recent reporting period available is August, 15 2025. More Short Interest Resources from MarketBeat Related Companies BVN Short Interest Data BHP Short Interest Data WPM Short Interest Data CCJ Short Interest Data TECK Short Interest Data RS Short Interest Data MP Short Interest Data OR Short Interest Data HBM Short Interest Data NXE Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:RIO) was last updated on 9/4/2025 by MarketBeat.com Staff From Our PartnersCapital Gains Tax Strategies for SeniorsCapital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. 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