Pioneer Municipal High Income Fund (MHI) Short Interest Ratio & Short Volume $9.12 -0.04 (-0.38%) Closing price 07/11/2025 03:58 PM EasternExtended Trading$9.12 0.00 (0.00%) As of 07/11/2025 04:04 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 AnalysisChartCompetitorsDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Pioneer Municipal High Income Fund Short Interest DataPioneer Municipal High Income Fund (MHI) has a short interest of 64,400 shares. This marks a 0.16% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.9, indicating that it would take 0.9 days of the average trading volume of 55,263 shares to cover all short positions.Current Short Interest64,400 sharesPrevious Short Interest64,300 sharesChange Vs. Previous Month+0.16%Dollar Volume Sold Short$590.55 thousandShort Interest Ratio0.9 Days to CoverLast Record DateJune 30, 2025Today's Trading Volume77,441 sharesAverage Trading Volume55,263 sharesToday's Volume Vs. Average140% Short Selling Pioneer Municipal High Income Fund? Sign up to receive the latest short interest report for Pioneer Municipal High Income Fund and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMHI Short Interest Over TimeMHI Days to Cover Over TimeMHI Percentage of Float Shorted Over Time Pioneer Municipal High Income Fund Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/202564,400 shares $590.55 thousand +0.2%N/A0.9 $9.17 6/15/202564,300 shares $587.38 thousand -18.9%N/A1 $9.14 5/31/202579,300 shares $727.58 thousand -5.1%N/A1.4 $9.18 5/15/202583,600 shares $778.32 thousand +32.3%N/A1.5 $9.31 4/30/202563,200 shares $577.02 thousand +4.5%N/A1.2 $9.13 4/15/202560,500 shares $529.38 thousand +41.4%N/A1.2 $8.75 3/31/202542,800 shares $393.55 thousand +0.5%N/A0.9 $9.20 3/15/202542,600 shares $393.62 thousand +23.5%N/A0.9 $9.24 2/28/202534,500 shares $327.58 thousand -33.4%N/A0.7 $9.50 2/15/202551,800 shares $488.73 thousand -10.1%N/A1.1 $9.44 Get the Latest News and Ratings for MHI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Pioneer Municipal High Income Fund and its competitors with MarketBeat's FREE daily newsletter. 1/31/202557,600 shares $542.59 thousand -20.1%N/A1.1 $9.42 1/15/202572,100 shares $683.51 thousand -5.5%N/A1.4 $9.48 12/31/202476,300 shares $706.54 thousand +9.9%N/A1.5 $9.26 12/15/202469,400 shares $659.99 thousand +5.5%N/A1.3 $9.51 11/30/202465,800 shares $633.00 thousand +32.1%N/A1.5 $9.62 11/15/202449,800 shares $468.12 thousand +4.0%N/A1.1 $9.40 10/31/202447,900 shares $450.74 thousand +16.0%N/A1.1 $9.41 10/15/202441,300 shares $389.87 thousand +132.0%N/A0.9 $9.44 9/30/202417,800 shares $171.41 thousand -18.4%N/A0.4 $9.63 9/15/202421,800 shares $209.28 thousand -37.4%N/A0.5 $9.60 8/31/202434,800 shares $327.47 thousand -42.4%N/A0.7 $9.41 8/15/202460,400 shares $569.57 thousand +47.3%N/A1.2 $9.43 7/31/202441,000 shares $379.25 thousand -25.2%N/A0.9 $9.25 7/15/202454,800 shares $501.97 thousand -51.1%N/A1.2 $9.16 6/30/2024112,000 shares $1.02 million -5.5%N/A2.4 $9.14 6/15/2024118,500 shares $1.07 million -19.0%N/A2.4 $9.04 5/31/2024146,300 shares $1.30 million +106.1%N/A2.9 $8.89 5/15/202471,000 shares $634.03 thousand +58.8%N/A1.4 $8.93 4/30/202444,700 shares $379.50 thousand -20.7%N/A0.8 $8.49 4/15/202456,400 shares $483.12 thousand +6.2%N/A0.8 $8.57 3/31/20241,200 shares $10.61 thousand -99.0%N/A0.3 $8.84 3/15/2024116,900 shares $1.02 million +50.8%N/A1.2 $8.76 2/29/202477,500 shares $678.90 thousand -45.9%N/A0.7 $8.76 2/15/2024143,300 shares $1.26 million +302.5%N/A1.3 $8.77 1/31/202435,600 shares $306.87 thousand -25.4%N/A0.3 $8.62 1/15/202447,700 shares $410.70 thousand -29.1%N/A0.4 $8.61 12/31/202367,300 shares $580.80 thousand +18.9%N/A0.5 $8.63 12/15/202356,600 shares $479.97 thousand -44.0%N/A0.5 $8.48 11/30/2023101,100 shares $824.98 thousand -33.2%N/A0.8 $8.16 11/15/2023151,300 shares $1.19 million +17.2%N/A1.2 $7.86While Tariffs Crushed the Market, This Trading Strategy Stayed GREEN (Ad)On the day the S&P 500 soared 9.5% and the Nasdaq jumped 12%, most investors were caught off guard. But a small group of traders stayed calm—and profitable. They were using Professor Jeff Bierman’s Genesis Cog system, designed to spot “stock hijacks” driven by algorithms, not headlines. Here’s how this system stayed on track while the rest of the market went wild. 10/31/2023129,100 shares $901.12 thousand +102.4%N/A1.1 $6.98 10/15/202363,800 shares $465.74 thousand -38.2%N/A0.6 $7.30 9/30/2023103,200 shares $746.14 thousand +47.9%N/A1 $7.23 9/15/202369,800 shares $540.25 thousand +58.6%N/A0.7 $7.74 8/31/202344,000 shares $350.24 thousand +69.2%N/A0.5 $7.96 8/15/202326,000 shares $217.88 thousand -33.0%N/A0.3 $8.38 7/31/202338,800 shares $336.78 thousand -10.0%N/A0.5 $8.68 7/15/202343,100 shares $370.23 thousand +106.2%N/A0.6 $8.59 6/30/202320,900 shares $178.28 thousand +7.2%N/A0.3 $8.53 6/15/202319,500 shares $166.92 thousand -22.6%N/A0.3 $8.56 5/31/202325,200 shares $210.17 thousand +4.1%N/A0.4 $8.34 5/15/202324,200 shares $208.36 thousand -43.1%N/A0.3 $8.61 4/30/202342,500 shares $373.15 thousand +90.6%N/A0.5 $8.78 4/15/202322,300 shares $199.59 thousand +41.1%N/A0.3 $8.95 3/31/202315,800 shares $140.46 thousand +77.5%N/A0.2 $8.89 3/15/20238,900 shares $77.79 thousand +81.6%N/A0.1 $8.74 2/28/20234,900 shares $42.39 thousand -54.6%N/A0 $8.65 2/15/202310,800 shares $97.85 thousand -18.2%N/A0.1 $9.06 1/31/202313,200 shares $123.95 thousand -37.7%N/A0.1 $9.39 1/15/202321,200 shares $198.43 thousand +109.9%N/A0.2 $9.36 12/30/202210,100 shares $86.66 thousand +16.1%N/A0.1 $8.58 12/15/20228,700 shares $77.08 thousand -47.6%N/A0.1 $8.86 11/30/202216,600 shares $149.90 thousand +12.2%N/A0.1 $9.03 11/15/202214,800 shares $122.69 thousand -86.0%N/A0.1 $8.29 10/31/2022106,000 shares $845.88 thousand +91.0%N/A1.1 $7.98 10/15/202255,500 shares $478.97 thousand No ChangeN/A0.6 $8.63 9/30/202257,000 shares $467.97 thousand -7.3%N/A0.7 $8.21 9/15/202261,500 shares $555.96 thousand -14.0%N/A0.8 $9.04 8/31/202271,500 shares $680.68 thousand +85.2%N/A0.9 $9.52 8/15/202238,600 shares $392.18 thousand +614.8%N/A0.5 $10.16 7/31/20225,400 shares $52.81 thousand -70.2%N/A0.1 $9.78 7/15/202218,100 shares $175.93 thousand +18.3%N/A0.2 $9.72 6/30/202215,300 shares $141.98 thousand -11.6%N/A0.2 $9.28 6/15/202217,300 shares $156.57 thousand +32.1%N/A0.2 $9.05 5/31/202213,100 shares $130.74 thousand -61.5%N/A0.2 $9.98 5/15/202234,000 shares $322.66 thousand +107.3%N/A0.5 $9.49 4/30/202216,400 shares $156.95 thousand +41.4%N/A0.2 $9.57 4/15/202211,600 shares $114.26 thousand -61.6%N/A0.2 $9.85 3/31/202230,200 shares $317.10 thousand +25.3%N/A0.5 $10.50 3/15/202224,100 shares $255.94 thousand +13.7%N/A0.4 $10.62 2/28/202221,200 shares $233.84 thousand -38.9%N/A0.3 $11.03 2/15/202234,700 shares $383.09 thousand -13.9%N/A0.5 $11.04 1/31/202240,300 shares $457.00 thousand +70.8%N/A0.7 $11.34 1/15/202223,600 shares $280.37 thousand +67.4%N/A0.4 $11.88 12/31/202114,100 shares $172.44 thousand +213.3%N/A0.2 $12.23 12/15/20214,500 shares $54.86 thousand +95.7%N/A0.1 $12.19 11/30/20212,300 shares $28.01 thousand -70.1%N/A0 $12.18 11/15/20217,700 shares $95.63 thousand +87.8%N/A0.1 $12.42 10/29/20214,100 shares $49.90 thousand +24.2%N/A0.1 $12.17 10/15/20213,300 shares $40.13 thousand -38.9%N/A0.1 $12.16While Tariffs Crushed the Market, This Trading Strategy Stayed GREEN (Ad)On the day the S&P 500 soared 9.5% and the Nasdaq jumped 12%, most investors were caught off guard. But a small group of traders stayed calm—and profitable. They were using Professor Jeff Bierman’s Genesis Cog system, designed to spot “stock hijacks” driven by algorithms, not headlines. Here’s how this system stayed on track while the rest of the market went wild. 9/30/20215,400 shares $65.50 thousand -74.4%N/A0.1 $12.13 9/15/202121,100 shares $263.75 thousand +681.5%N/A0.4 $12.50 8/31/20212,700 shares $33.97 thousand -52.6%N/A0.1 $12.58 8/13/20215,700 shares $72.56 thousand +14.0%N/A0.1 $12.73 7/30/20215,000 shares $65.95 thousand +72.4%N/A0.1 $13.19 7/15/20212,900 shares $37.70 thousand -83.8%N/A0.1 $13.00 6/30/202117,900 shares $232.34 thousand +3,480.0%N/A0.4 $12.98 6/15/2021500 shares $6.40 thousand -97.9%N/A0 $12.79 5/28/202123,600 shares $300.66 thousand +615.2%N/A0.5 $12.74 5/14/20213,300 shares $41.51 thousand +57.1%N/A0.1 $12.58 4/30/20212,100 shares $26.50 thousand -63.2%N/A0 $12.62 4/15/20215,700 shares $72.39 thousand -55.1%N/A0.1 $12.70 3/31/202112,700 shares $157.23 thousand -44.1%N/A0.2 $12.38 3/15/202122,700 shares $281.71 thousand +305.4%N/A0.4 $12.41 2/26/20215,600 shares $67.37 thousand +115.4%N/A0.1 $12.03 2/12/20212,600 shares $32.89 thousand -86.8%N/A0 $12.65 1/29/202119,700 shares $246.45 thousand -50.3%N/A0.3 $12.51 1/15/202139,600 shares $491.44 thousand +270.1%N/A0.5 $12.41 12/31/202010,700 shares $132.36 thousand +37.2%N/A0.2 $12.37 12/15/20207,800 shares $95.55 thousand -84.9%N/A0.1 $12.25 11/30/202051,700 shares $641.08 thousand -1.9%N/A0.9 $12.40 11/15/202052,700 shares $632.40 thousand +3,664.3%N/A1 $12.00 10/30/20201,400 shares $15.96 thousand -72.0%N/A0 $11.40 10/15/20205,000 shares $58.55 thousand -32.4%N/A0 $11.71 9/30/20207,400 shares $85.69 thousand -56.0%N/A0.1 $11.58 9/15/202011,800 shares $138.41 thousand -29.8%N/A0.2 $11.73 8/31/202016,800 shares $196.06 thousand +16.7%N/A0.2 $11.67 8/14/202014,400 shares $175.10 thousand +51.6%N/A0.2 $12.16 7/31/20209,500 shares $114 thousand +72.7%N/A0.1 $12.00 7/15/20205,500 shares $63.86 thousand +61.8%N/A0.1 $11.61 MHI Short Interest - Frequently Asked Questions What is Pioneer Municipal High Income Fund's current short interest? Short interest is the volume of Pioneer Municipal High Income Fund shares that have been sold short but have not yet been covered or closed out. As of June 30th, investors have sold 64,400 shares of MHI short. Learn More on Pioneer Municipal High Income Fund's current short interest. What is a good short interest ratio for Pioneer Municipal High Income Fund? 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. MHI shares currently have a short interest ratio of 1.0. Learn More on Pioneer Municipal High Income Fund's short interest ratio. Is Pioneer Municipal High Income Fund's short interest increasing or decreasing? Pioneer Municipal High Income Fund saw a increase in short interest in the month of June. As of June 30th, there was short interest totaling 64,400 shares, an increase of 0.2% from the previous total of 64,300 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 Pioneer Municipal High Income Fund's short interest compare to its competitors? Here is how the short interest of companies in the industry of "financial services" compare to Pioneer Municipal High Income Fund: Blackrock Income Trust (0.28%), BlackRock MuniYield Michigan Quality Fund, Inc. (0.32%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short Pioneer Municipal High Income Fund stock? Short selling MHI is an investing strategy that aims to generate trading profit from Pioneer Municipal High Income Fund as its price is falling. MHI shares are trading down $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 Pioneer Municipal High Income Fund? A short squeeze for Pioneer Municipal High Income Fund 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 MHI, which in turn drives the price of the stock up even further. How often is Pioneer Municipal High Income Fund'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 MHI, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies Abrdn Global Dynamic Dividend Fund Short Interest abrdn Global Premier Properties Fund Short Interest Abrdn Healthcare Opportunities Fund Short Interest Abrdn World Healthcare Fund Short Interest Advent Convertible and Income Fund Short Interest AllianceBernstein National Municipal Income Fund Short Interest Ares Dynamic Credit Allocation Fund Short Interest BlackRock California Municipal Income Trust Short Interest BlackRock Core Bond Trust Short Interest BlackRock Corporate High Yield Fund Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:MHI) was last updated on 7/12/2025 by MarketBeat.com Staff From Our PartnersI was wrong about TrumpI made a mistake. A mistake I feel very foolish about. 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