iShares MBS ETF (MBB) Short Interest Ratio & Short Volume $92.87 +0.49 (+0.53%) Closing price 02/21/2025 04:00 PM EasternExtended Trading$90.70 -2.17 (-2.34%) As of 02/21/2025 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 AnalysisChartDividendHeadlinesHoldingsOptions ChainOwnershipShort InterestTrends iShares MBS ETF Short Interest DataiShares MBS ETF (MBB) has a short interest of 710,800 shares. This marks a -48.12% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.3, indicating that it would take 0.3 days of the average trading volume of 2.26 million shares to cover all short positions.Current Short Interest710,800 sharesPrevious Short Interest1,370,000 sharesChange Vs. Previous Month-48.12%Dollar Volume Sold Short$65.53 millionShort Interest Ratio0.3 Days to CoverLast Record DateJanuary 31, 2025Outstanding Shares396,200,000 sharesPercentage of Shares Shorted0.18%Today's Trading Volume1,584,823 sharesAverage Trading Volume2,257,480 sharesToday's Volume Vs. Average70% Short Selling iShares MBS ETF? Sign up to receive the latest short interest report for iShares MBS ETF and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMBB Short Interest Over TimeMBB Days to Cover Over TimeMBB Percentage of Float Shorted Over Time iShares MBS ETF Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 1/31/2025710,800 shares $65.53 million -48.1%N/A0.3 $92.19 1/15/20251,370,000 shares $125.23 million -23.5%N/A0.5 $91.41 12/31/20241,790,000 shares $164.11 million -32.2%N/A0.6 $91.68 12/15/20242,640,000 shares $244.20 million -9.6%N/A0.9 $92.50 11/30/20242,920,000 shares $274.28 million +45.3%N/A1 $93.93 11/15/20242,010,000 shares $185.28 million +71.8%N/A0.7 $92.18 10/31/20241,170,000 shares $108.62 million -56.0%N/A0.5 $92.84 10/15/20242,660,000 shares $251.29 million +26.7%N/A1.2 $94.47 9/30/20242,100,000 shares $201.20 million -59.6%N/A1 $95.81 9/15/20245,200,000 shares $501.80 million +110.5%N/A2.8 $96.50 Get the Latest News and Ratings for MBB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for iShares MBS ETF and its competitors with MarketBeat's FREE daily newsletter. 8/31/20242,470,000 shares $235.24 million -16.8%N/A1.3 $95.24 8/15/20242,970,000 shares $281.05 million +42.1%N/A1.6 $94.63 7/31/20242,090,000 shares $196.29 million -62.8%N/A1.1 $93.92 7/15/20245,620,000 shares $521.37 million +114.5%N/A2.6 $92.77 6/30/20242,620,000 shares $240.54 million -18.6%N/A1.2 $91.81 6/15/20243,220,000 shares $298.20 million +69.5%N/A1.4 $92.61 5/31/20241,900,000 shares $172.92 million -59.4%N/A0.8 $91.01 5/15/20244,680,000 shares $430.70 million +38.5%N/A1.8 $92.03 4/30/20243,380,000 shares $302.65 million +102.4%N/A1.2 $89.54 4/15/20241,670,000 shares $149.87 million -5.1%N/A0.6 $89.74 3/31/20241,760,000 shares $162.66 million +33.3%N/A0.7 $92.42 3/15/20241,320,000 shares $121.00 million -59.9%N/A0.5 $91.67 2/29/20243,290,000 shares $302.38 million +225.7%N/A1.2 $91.91 2/15/20241,010,000 shares $92.97 million -40.2%N/A0.4 $92.05 1/31/20241,690,000 shares $158.52 million -2.9%N/A0.7 $93.80 1/15/20241,740,000 shares $163.53 million +124.5%N/A0.7 $93.98 12/31/2023775,000 shares $72.91 million -17.7%N/A0.3 $94.08 12/15/2023942,000 shares $87.93 million -68.3%N/A0.3 $93.34 11/30/20232,970,000 shares $269.82 million -5.7%N/A1.1 $90.85 11/15/20233,150,000 shares $280.95 million -27.4%N/A1.3 $89.19 10/31/20234,340,000 shares $375.93 million +2.4%N/A1.9 $86.62 10/15/20234,240,000 shares $372.91 million +72.4%N/A1.9 $87.95 9/30/20232,460,000 shares $218.45 million +21.8%N/A1.2 $88.80 9/15/20232,020,000 shares $183.09 million +109.0%N/A1.1 $90.64 8/31/2023966,300 shares $88.80 million +10.1%N/A0.5 $91.90 8/15/2023877,300 shares $79.59 million +59.7%N/A0.4 $90.72 7/31/2023549,200 shares $51.03 million -42.7%N/A0.3 $92.92 7/15/2023958,900 shares $89.41 million +31.3%N/A0.5 $93.24 6/30/2023730,300 shares $68.11 million -35.9%N/A0.4 $93.27 6/15/20231,140,000 shares $107.00 million -65.7%N/A0.7 $93.86Elon Takes Aim at Social Security (Ad)Elon Musk just dropped another bombshell... He revealed his DOGE organization has been taking aim at Social Security, finding what he says is widespread fraud across the agency.>>Here are the NINE stocks everyone will wish they own once Elon moves.<< 5/31/20233,320,000 shares $312.01 million +3.8%N/A1.8 $93.98 5/15/20233,200,000 shares $301.73 million +48.2%N/A1.6 $94.29 4/30/20232,160,000 shares $204.94 million -15.0%N/A1.1 $94.88 4/15/20232,540,000 shares $239.85 million -40.7%N/A1.2 $94.43 3/31/20234,280,000 shares $405.44 million +10.6%N/A1.7 $94.73 3/15/20233,870,000 shares $366.18 million -46.1%N/A1.5 $94.62 2/28/20237,180,000 shares $667.81 million -18.7%N/A2.9 $93.01 2/15/20238,830,000 shares $830.20 million +0.7%N/A3.9 $94.02 1/31/20238,770,000 shares $840.87 million +116.0%N/A3.7 $95.88 1/15/20234,060,000 shares $388.18 million +192.1%N/A1.6 $95.61 12/30/20221,390,000 shares $128.92 million -17.8%N/A0.5 $92.75 12/15/20221,690,000 shares $161.07 million +5.0%N/A0.6 $95.31 11/30/20221,610,000 shares $151.32 million -59.5%N/A0.6 $93.99 11/15/20223,970,000 shares $367.78 million -31.8%N/A1.5 $92.64 10/31/20225,820,000 shares $525.78 million -23.7%N/A2.4 $90.34 10/15/20227,630,000 shares $685.78 million No ChangeN/A3.2 $89.88 9/30/20224,510,000 shares $413.03 million +80.4%N/A2.5 $91.58 9/15/20222,500,000 shares $236.10 million -4.6%N/A1.4 $94.44 8/31/20222,620,000 shares $253.33 million +52.3%N/A1.3 $96.69 8/15/20221,720,000 shares $171.16 million -62.9%N/A0.9 $99.51 7/31/20224,630,000 shares $464.94 million +7.4%N/A2.1 $100.42 7/15/20224,310,000 shares $422.51 million +12.0%N/A1.9 $98.03 6/30/20223,850,000 shares $375.34 million -15.0%N/A1.6 $97.49 6/15/20224,530,000 shares $431.94 million +198.0%N/A1.9 $95.35 5/31/20221,520,000 shares $150.74 million +7.8%N/A0.7 $99.17 5/15/20221,410,000 shares $138.57 million -67.9%N/A0.7 $98.28 4/30/20224,390,000 shares $430.66 million +181.4%N/A2 $98.10 4/15/20221,560,000 shares $154.38 million -41.4%N/A0.7 $98.96 3/31/20222,660,000 shares $270.97 million +82.2%N/A1.2 $101.87 3/15/20221,460,000 shares $149.83 million -61.2%N/A0.7 $102.62 2/28/20223,760,000 shares $393.07 million +36.7%N/A1.8 $104.54 2/15/20222,750,000 shares $285.53 million +38.9%N/A1.4 $103.83 1/31/20221,980,000 shares $209.74 million -47.1%N/A1.1 $105.93 1/15/20223,740,000 shares $395.99 million +29.0%N/A2.3 $105.88 12/31/20212,900,000 shares $311.55 million +8.2%N/A1.9 $107.43 12/15/20212,680,000 shares $287.70 million -4.3%N/A1.8 $107.35 11/30/20212,800,000 shares $301.20 million +37.3%N/A1.9 $107.57 11/15/20212,040,000 shares $219.03 million +4.1%N/A1.5 $107.37 10/29/20211,960,000 shares $211.35 million -48.3%N/A1.5 $107.83 10/15/20213,790,000 shares $409.02 million -14.3%N/A3.1 $107.92 9/30/20214,420,000 shares $477.98 million -20.2%N/A3.3 $108.14 9/15/20215,540,000 shares $601.81 million +17.4%N/A3.9 $108.63 8/31/20214,720,000 shares $512.54 million -11.9%N/A3.1 $108.59 8/13/20215,360,000 shares $581.72 million -15.7%N/A3.6 $108.53 7/30/20216,360,000 shares $691.27 million +11.4%N/A4.1 $108.69 7/15/20215,710,000 shares $619.48 million +27.7%N/A3.7 $108.49 6/30/20214,470,000 shares $483.79 million +130.4%N/A3.1 $108.23 6/15/20211,940,000 shares $210.12 million +24.4%N/A1.3 $108.31 5/28/20211,560,000 shares $169.06 million +95.5%N/A1 $108.37 5/14/2021797,900 shares $86.42 million +11.5%N/A0.5 $108.31Elon’s “New Gold” (Ad)MIT scientists just developed a brand-new metal… A metal that’s shaping up to be, not only the biggest breakthrough in artificial intelligence… but in human technology. It’s so valuable that some are referring to it as the “new gold”.I reveal all of the details here. 4/30/2021715,600 shares $77.79 million -3.4%N/A0.4 $108.70 4/15/2021740,800 shares $80.44 million -26.7%N/A0.4 $108.58 3/31/20211,010,000 shares $109.40 million -62.5%N/A0.5 $108.32 3/15/20212,690,000 shares $292.46 million -38.2%N/A1.5 $108.72 2/26/20214,350,000 shares $473.76 million +21.9%N/A2.5 $108.91 2/12/20213,570,000 shares $393.24 million +10.2%N/A2.2 $110.15 1/29/20213,240,000 shares $357.11 million +57.3%N/A2 $110.22 1/15/20212,060,000 shares $226.79 million -14.2%N/A1.2 $110.09 12/31/20202,400,000 shares $264.29 million -11.8%N/A1.6 $110.12 12/15/20202,720,000 shares $299.04 million +40.9%N/A1.7 $109.94 11/30/20201,930,000 shares $212.63 million -64.9%N/A1.3 $110.17 11/15/20205,490,000 shares $604.50 million +571.5%N/A3.6 $110.11 10/30/2020817,600 shares $90.14 million -61.1%N/A0.5 $110.25 10/15/20202,100,000 shares $231.27 million -36.0%N/A0 $110.13 9/30/20203,280,000 shares $362.11 million +87.4%N/A2.3 $110.40 9/15/20202,190,000 shares $241.62 million +25.1%N/A1.9 $110.33 8/31/20201,750,000 shares $193.69 million -45.5%N/A1.5 $110.68 8/14/20203,210,000 shares $355.06 million +136.0%N/A2.5 $110.61 7/31/20201,360,000 shares $150.72 million -27.7%N/A1.1 $110.82 7/15/20201,880,000 shares $208.00 million +28.8%N/A1.6 $110.64 6/30/20201,460,000 shares $161.75 million -34.8%N/A1 $110.79 6/15/20202,240,000 shares $248.86 million +256.6%N/A1.4 $111.10 5/29/2020628,200 shares $69.78 million +69.1%N/A0.3 $111.08 5/15/2020371,500 shares $41.27 million -15.8%N/A0.2 $111.08 4/30/2020441,300 shares $48.94 million +99.2%N/A0.2 $110.90 4/15/2020221,500 shares $24.36 million -23.7%N/A0.1 $109.96 3/31/2020290,200 shares $32.05 million +14.5%N/A0.1 $110.45 3/13/2020253,500 shares $28.00 million -35.5%N/A0.1 $110.46 2/28/2020392,900 shares $42.70 million -37.3%N/A0.2 $108.67 MBB Short Interest - Frequently Asked Questions What is iShares MBS ETF's current short interest? Short interest is the volume of iShares MBS ETF shares that have been sold short but have not yet been covered or closed out. As of January 31st, traders have sold 710,800 shares of MBB short. Learn More on iShares MBS ETF's current short interest. Which institutional investors are shorting iShares MBS ETF? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of iShares MBS ETF: Citadel Advisors LLC, and Susquehanna International Group LLP. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is iShares MBS ETF's short interest increasing or decreasing? iShares MBS ETF saw a decline in short interest during the month of January. As of January 31st, there was short interest totaling 710,800 shares, a decline of 48.1% from the previous total of 1,370,000 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 iShares MBS ETF's short interest compare to its competitors? Here is how the short interest of companies compare to iShares MBS ETF: Vanguard Mortgage-Backed Securities ETF (0.30%), First Trust Low Duration Opportunities ETF (0.08%), and iShares GNMA Bond ETF (0.01%). Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Co. ($5.21 billion), Charter Communications, Inc. ($4.07 billion), Reddit, Inc. ($3.33 billion), The Kroger Co. ($2.67 billion), Cencora, Inc. ($2.29 billion), Hims & Hers Health, Inc. ($2.17 billion), SoFi Technologies, Inc. ($1.99 billion), Live Nation Entertainment, Inc. ($1.87 billion), Rivian Automotive, Inc. ($1.76 billion), and Moderna, Inc. ($1.60 billion). View all of the most shorted stocks. What does it mean to sell short iShares MBS ETF stock? Short selling MBB is an investing strategy that aims to generate trading profit from iShares MBS ETF as its price is falling. MBB shares are trading up $0.49 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 iShares MBS ETF? A short squeeze for iShares MBS ETF 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 MBB, which in turn drives the price of the stock up even further. How often is iShares MBS ETF'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 MBB, twice per month. The most recent reporting period available is January, 31 2025. More Short Interest Resources from MarketBeat Related Companies Vanguard Mortgage-Backed Securities ETF Short Squeeze First Trust Low Duration Opportunities ETF Short Squeeze iShares GNMA Bond ETF Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:MBB) was last updated on 2/22/2025 by MarketBeat.com Staff From Our PartnersThe Real Hillbilly ElegyThe mountains of Appalachia are incredible to behold. 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