Mplx (MPLX) Short Interest Ratio & Short Volume $58.78 -0.35 (-0.59%) As of 12:06 PM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC FilingsShort Interest Mplx Short Interest OverviewAs of September 30, 2026, Mplx (MPLX) had a short interest of 6.69 million shares sold short, representing 0.66% of the public float. This marks a 0.80% increase in short interest since the prior report. The short interest ratio (days to cover) is 4.2, meaning it would take 4.2 days of the average trading volume of 1.66 million shares to cover all short positions.Current Short Interest6,685,785 sharesPrevious Short Interest6,632,787 sharesChange Vs. Previous Month0.80%Dollar Volume Sold Short$376.69 millionShort Interest Ratio4.2 Days to CoverLast Record DateSeptember 30, 2026Outstanding Shares1,013,860,000 sharesShort Percent of Float0.66%Today's Trading Volume440,144 sharesAverage Trading Volume1,656,574 sharesToday's Volume Vs. Average27% Short Selling Mplx? Sign up to receive the latest short interest report for Mplx and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMPLX Short Interest Over TimeMPLX Days to Cover Over TimeMPLX Percentage of Float Shorted Over Time Mplx Tesla Short Interest History & Recent Changes ExportReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/30/20266,685,785 shares $376.69 million +0.8%0.7%4.22 $56.34 9/15/20266,632,787 shares $387.43 million -9.7%0.7%5.39 $58.41 8/31/20267,346,297 shares $434.83 million -1.5%0.7%6.97 $59.19 8/14/20267,459,259 shares $443.46 million -2.9%0.7%4.72 $59.45 7/31/20267,680,934 shares $448.90 million +8.1%0.8%4.51 $58.44 7/15/20267,106,766 shares $400.57 million +18.9%0.7%5.74 $56.37 6/30/20265,979,529 shares $337.12 million -10.1%0.6%4.29 $56.38 6/15/20266,647,807 shares $370.26 million +3.0%0.7%4.38 $55.70 5/29/20266,457,486 shares $354.19 million -2.8%0.6%3.84 $54.85 5/15/20266,642,770 shares $363.91 million -5.6%0.7%2.34 $54.78 Get the Latest News and Ratings for MPLX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Mplx and its competitors with MarketBeat's FREE daily newsletter. 4/30/20267,033,879 shares $397.10 million -13.7%0.7%2.9 $56.46 4/15/20268,150,190 shares $446.61 million +4.6%0.8%4.07 $54.80 3/31/20267,795,289 shares $444.32 million +2.0%0.8%4.64 $57.00 3/13/20267,644,457 shares $447.15 million +7.4%0.8%5.38 $58.49 2/27/20267,115,529 shares $419.44 million -5.3%0.7%4.47 $58.95 2/13/20267,511,701 shares $426.74 million +2.7%0.7%2.86 $56.81 1/30/20267,312,662 shares $408.91 million -0.3%0.7%5.22 $55.92 1/15/20267,337,195 shares $410.52 million -2.5%0.7%4.66 $55.95 12/31/20257,522,583 shares $401.71 million -26.1%0.7%5.21 $53.40 12/15/202510,184,962 shares $559.32 million +11.4%1.0%7.94 $54.92 11/28/20259,146,282 shares $502.28 million +1.0%0.9%6.8 $54.92 11/14/20259,057,721 shares $481.16 million +3.9%0.9%4.04 $53.12 10/31/20258,715,642 shares $442.64 million +16.9%0.9%5.92 $50.79 10/15/20257,460,000 shares $368.28 million -5.0%2.0%5 $49.37 9/30/20257,850,000 shares $392.11 million +1.6%2.1%5.5 $49.95 9/15/20257,730,000 shares $397.03 million -1.3%2.1%5.9 $51.36 8/31/20257,830,000 shares $398.74 million +1.7%2.1%6 $50.93 8/15/20257,700,000 shares $385.15 million +0.5%2.1%6.2 $50.02 7/31/20257,660,000 shares $402.06 million -1.3%2.1%6.2 $52.49 7/15/20257,760,000 shares $393.51 million +11.2%2.1%6.4 $50.71 6/30/20256,980,000 shares $359.54 million -9.6%1.9%4.8 $51.51 6/15/20257,720,000 shares $399.95 million +1.3%2.1%4.9 $51.81 5/31/20257,620,000 shares $389.15 million +2.8%2.1%4.5 $51.07 5/15/20257,410,000 shares $382.36 million +0.4%2.0%4 $51.60 4/30/20257,380,000 shares $375.86 million +7.3%2.0%3.9 $50.93 4/15/20256,880,000 shares $344.21 million -8.5%1.9%3.4 $50.03 3/31/20257,520,000 shares $402.52 million -17.6%2.0%3.7 $53.53 3/15/20259,130,000 shares $487.82 million -6.1%2.5%5 $53.43 2/28/20259,720,000 shares $523.81 million +0.5%2.6%5.2 $53.89 2/15/20259,670,000 shares $521.15 million -12.2%2.6%5.3 $53.89Financial legend: “This is bad, really bad...” (Ad)Dr. Martin D. Weiss has publicly predicted six major American market crashes over his 55-year career, each warning issued before the crisis hit. Now the founder of Weiss Ratings, the only conflict-free rating agency in America, says he is watching a $3 trillion problem that could trigger a chain reaction across markets and banks.See Martin Weiss's full warning before this risk spreads further 1/31/202511,010,000 shares $572.89 million +19.5%3.0%5.6 $52.03 1/15/20259,210,000 shares $462.25 million +2.6%2.5%5 $50.19 12/31/20248,980,000 shares $429.78 million -15.2%2.5%5 $47.86 12/15/202410,590,000 shares $517.43 million -7.3%2.9%6 $48.86 11/30/202411,420,000 shares $589.96 million +11.7%3.1%7.1 $51.66 11/15/202410,220,000 shares $480.95 million +7.9%2.8%6.6 $47.06 10/31/20249,470,000 shares $420.66 million -0.1%2.6%6.5 $44.42 10/15/20249,480,000 shares $418.35 million -2.8%2.6%6.5 $44.13 9/30/20249,750,000 shares $433.53 million +2.1%2.7%6.5 $44.47 9/15/20249,550,000 shares $418.10 million +4.0%2.6%6.3 $43.78 8/31/20249,180,000 shares $393.64 million +11.0%2.5%6 $42.88 8/15/20248,270,000 shares $346.35 million +17.0%2.3%5 $41.88 7/31/20247,070,000 shares $302.67 million -17.0%2.0%4.1 $42.81 7/15/20248,520,000 shares $360.99 million -19.5%2.4%4.8 $42.37 6/30/202410,580,000 shares $450.60 million -5.3%2.9%5.4 $42.59 6/15/202411,170,000 shares $459.20 million -3.6%3.1%5.5 $41.11 5/31/202411,590,000 shares $471.31 million +4.1%3.3%5.6 $40.67 5/15/202411,130,000 shares $449.65 million -8.1%3.1%5.1 $40.40 4/30/202412,110,000 shares $506.20 million +15.9%3.4%5.6 $41.80 4/15/202410,450,000 shares $416.54 million -2.0%2.9%4.7 $39.86 3/31/202410,660,000 shares $443.03 million -3.6%3.0%5 $41.56 3/15/202411,060,000 shares $445.61 million +5.2%3.2%5.4 $40.29 2/29/202410,510,000 shares $404.21 million +6.2%3.0%4.8 $38.46 2/15/20249,900,000 shares $384.91 million -13.8%2.9%4.7 $38.88 1/31/202411,490,000 shares $442.94 million +4.6%3.4%6 $38.55 1/15/202410,990,000 shares $410.48 million +13.0%3.2%5.8 $37.35 12/31/20239,730,000 shares $357.29 million -9.8%2.9%5.5 $36.72 12/15/202310,790,000 shares $388.66 million +1.0%3.2%5.7 $36.02 11/30/202310,680,000 shares $388.97 million +2.8%3.2%5.3 $36.42 11/15/202310,390,000 shares $368.85 million -5.6%3.1%5.2 $35.50 10/31/202311,000,000 shares $396.44 million -39.5%3.4%5.4 $36.04 10/15/202318,180,000 shares $656.66 million -5.0%5.6%9 $36.12 9/30/202319,130,000 shares $680.45 million +2.1%5.8%9.1 $35.57 9/15/202318,740,000 shares $655.15 million -0.4%5.7%9.6 $34.96 8/31/202318,820,000 shares $656.82 million +9.4%5.8%10.7 $34.90 8/15/202317,200,000 shares $600.11 million +18.8%5.3%9.6 $34.89 7/31/202314,480,000 shares $513.90 million +24.5%4.5%8.2 $35.49 7/15/202311,630,000 shares $401.24 million +30.7%3.6%6.7 $34.50 6/30/20238,900,000 shares $302.07 million -15.2%2.8%5.4 $33.94 6/15/202310,490,000 shares $355.51 million -8.7%3.3%6.2 $33.89 5/31/202311,490,000 shares $382.90 million -2.0%3.6%6.5 $33.33 5/15/202311,720,000 shares $397.43 million -11.8%3.6%6.9 $33.91 4/30/202313,280,000 shares $464.67 million +4.7%3.8%7.4 $34.99 4/15/202312,680,000 shares $442.66 million +9.1%3.7%7 $34.91 3/31/202311,620,000 shares $400.31 million -2.7%3.3%6.5 $34.45 3/15/202311,940,000 shares $405.00 million -6.9%3.7%6.8 $33.92 2/28/202312,830,000 shares $444.30 million +10.4%4.0%7.6 $34.63 2/15/202311,620,000 shares $406.82 million -12.5%3.6%7 $35.01 1/31/202313,280,000 shares $463.74 million -13.1%4.2%8.2 $34.92 1/15/202315,280,000 shares $521.05 million +6.8%4.8%9.4 $34.10Financial legend: “This is bad, really bad...” (Ad)Dr. Martin D. Weiss has publicly predicted six major American market crashes over his 55-year career, each warning issued before the crisis hit. Now the founder of Weiss Ratings, the only conflict-free rating agency in America, says he is watching a $3 trillion problem that could trigger a chain reaction across markets and banks.See Martin Weiss's full warning before this risk spreads further 12/30/202214,310,000 shares $469.94 million -4.3%4.5%8.6 $32.84 12/15/202214,960,000 shares $480.52 million -0.9%4.7%8.3 $32.12 11/30/202215,090,000 shares $512.91 million +31.1%4.6%8.8 $33.99 11/15/202211,510,000 shares $378.22 million -23.1%3.5%6.7 $32.86 10/31/202214,970,000 shares $502.09 million -1.6%4.6%8.9 $33.54 10/15/202215,220,000 shares $476.69 million -2.7%4.6%9.6 $31.32 9/30/202215,640,000 shares $469.36 million -3.3%4.8%10.3 $30.01 9/15/202216,170,000 shares $532.64 million -2.5%4.9%10.6 $32.94 8/31/202216,590,000 shares $541.17 million -1.0%5.0%9.6 $32.62 8/15/202216,750,000 shares $538.51 million +7.0%5.1%9.4 $32.15 7/31/202215,660,000 shares $509.11 million -3.6%4.8%7.9 $32.51 7/15/202216,250,000 shares $486.69 million -5.9%4.9%7.8 $29.95 6/30/202217,270,000 shares $503.42 million +0.5%5.2%8.3 $29.15 6/15/202217,180,000 shares $520.73 million -4.4%5.2%8.3 $30.31 5/31/202217,970,000 shares $592.11 million +6.6%5.5%9.1 $32.95 5/15/202216,860,000 shares $520.47 million +14.5%5.1%7.4 $30.87 4/30/202214,730,000 shares $476.66 million -23.2%4.5%6.5 $32.36 4/15/202219,190,000 shares $660.71 million -1.3%5.9%8.4 $34.43 3/31/202219,450,000 shares $645.35 million -3.1%6.0%8.3 $33.18 3/15/202220,080,000 shares $630.31 million +1.1%6.2%8.5 $31.39 2/28/202219,870,000 shares $651.34 million -3.4%6.0%8.3 $32.78 2/15/202220,570,000 shares $682.92 million +12.0%6.2%9.5 $33.20 1/31/202218,370,000 shares $602.90 million -8.2%5.5%8.6 $32.82 1/15/202220,010,000 shares $630.52 million +4.6%6.0%9.3 $31.51 12/31/202119,140,000 shares $566.35 million +13.8%5.8%9.3 $29.59 12/15/202116,820,000 shares $477.02 million -2.1%5.1%8 $28.36 11/30/202117,180,000 shares $503.55 million +10.3%5.2%8.1 $29.31 11/15/202115,570,000 shares $481.42 million -8.3%4.7%7.7 $30.92 10/29/202116,970,000 shares $511.14 million +6.7%5.1%8.7 $30.12 MPLX Short Interest - Frequently Asked Questions What is Mplx's current short interest? Short interest is the volume of Mplx shares that have been sold short but have not yet been closed out or covered. As of September 30th, investors have sold 6,685,785 shares of MPLX short. 0.66% of Mplx's shares are currently sold short. Learn More on Mplx's current short interest. What is a good short interest ratio for Mplx? 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. MPLX shares currently have a short interest ratio of 4.2. Learn More on Mplx's short interest ratio. What is a good short interest percentage for Mplx? 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. 0.66% of Mplx's floating shares are currently sold short. Is Mplx's short interest increasing or decreasing? Mplx saw a increase in short interest in September. As of September 30th, there was short interest totaling 6,685,785 shares, an increase of 0.8% from the previous total of 6,632,787 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 Mplx's short interest compare to its competitors? 0.66% of Mplx's shares are currently sold short. Here is how the short interest of companies in the industry of "oil, gas & consumable fuels" compare to Mplx: Plains All American Pipeline Lp (2.51%), Antero Midstream Corporation (2.62%), Enterprise Products Partners L.P. (1.20%), Kinder Morgan, Inc. (2.38%), Marathon Petroleum Corporation (2.42%), ONEOK, Inc. (3.88%), Targa Resources, Inc. (2.51%), Western Midstream Partners, LP (1.46%), Energy Transfer LP (0.81%), Enbridge Inc (1.05%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.10 billion), Invesco QQQ ($52.12 billion), iShares Russell 2000 ETF ($25.28 billion), SPDR S&P Biotech ETF ($11.70 billion), Nebius Group N.V. ($10.54 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($9.69 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($9.22 billion), iShares 20+ Year Treasury Bond ETF ($8.80 billion), Financial Select Sector SPDR Fund ($7.65 billion), and Lumentum Holdings Inc. ($7.23 billion). View all of the most shorted stocks. What does it mean to sell short Mplx stock? Short selling MPLX is an investing strategy that aims to generate trading profit from Mplx as its price is falling. MPLX shares are trading down $0.01 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 Mplx? A short squeeze for Mplx 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 MPLX, which in turn drives the price of the stock up even further. How often is Mplx'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 MPLX, twice per month. The most recent reporting period available is September, 30 2026. What do MPLX's short interest metrics mean? Understanding short interest metrics can help you assess how traders are positioning around a stock like MPLX:Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity. More Short Interest Resources from MarketBeat Related Companies Plains All American Pipeline Short Interest Antero Midstream Short Interest Enterprise Products Partners Short Interest Kinder Morgan Short Interest Marathon Petroleum Short Interest ONEOK Short Interest Targa Resources Short Interest Western Midstream Partners Short Interest Energy Transfer Short Interest Enbridge Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates Short interest data for NYSE:MPLX is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/9/2026. FINRA publishes updated short interest twice a month. From Our PartnersFinancial legend: “This is bad, really bad...”Dr. Martin D. 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