Nuveen Municipal High Income Opportunity Fund (NMZ) Short Interest Ratio & Short Volume $10.06 -0.02 (-0.20%) As of 02:49 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Nuveen Municipal High Income Opportunity Fund Short Interest DataNuveen Municipal High Income Opportunity Fund (NMZ) has a short interest of 252,500 shares. This marks a 57.62% 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 312,462 shares to cover all short positions.Current Short Interest252,500 sharesPrevious Short Interest160,200 sharesChange Vs. Previous Month+57.62%Dollar Volume Sold Short$2.51 millionShort Interest Ratio0.9 Days to CoverLast Record DateJuly 31, 2025Today's Trading Volume270,457 sharesAverage Trading Volume312,462 sharesToday's Volume Vs. Average87% Short Selling Nuveen Municipal High Income Opportunity Fund? Sign up to receive the latest short interest report for Nuveen Municipal High Income Opportunity 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 ChartNMZ Short Interest Over TimeNMZ Days to Cover Over TimeNMZ Percentage of Float Shorted Over Time Nuveen Municipal High Income Opportunity 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 7/31/2025252,500 shares $2.51 million +57.6%N/A0.9 $9.94 7/15/2025160,200 shares $1.65 million -16.7%N/A0.6 $10.27 6/30/2025192,300 shares $1.99 million +9.6%N/A0.6 $10.37 6/15/2025175,500 shares $1.80 million +0.1%N/A0.5 $10.26 5/31/2025175,300 shares $1.83 million -11.1%N/A0.5 $10.42 5/15/2025197,100 shares $2.07 million -15.6%N/A0.6 $10.52 4/30/2025233,600 shares $2.46 million +80.3%N/A0.7 $10.53 4/15/2025129,600 shares $1.32 million -25.0%N/A0.4 $10.18 3/31/2025172,700 shares $1.88 million -21.9%N/A0.5 $10.89 3/15/2025221,200 shares $2.44 million +97.5%N/A0.7 $11.05 Get the Latest News and Ratings for NMZ and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Nuveen Municipal High Income Opportunity Fund and its competitors with MarketBeat's FREE daily newsletter. 2/28/2025112,000 shares $1.26 million -33.9%N/A0.4 $11.29 2/15/2025169,400 shares $1.90 million -55.9%N/A0.5 $11.20 1/31/2025384,200 shares $4.30 million +4.3%N/A1.1 $11.19 1/15/2025368,300 shares $4.03 million +50.9%N/A1 $10.94 12/31/2024244,000 shares $2.64 million -25.6%N/A0.7 $10.81 12/15/2024327,800 shares $3.72 million +111.1%N/A1 $11.34 11/30/2024155,300 shares $1.78 million -53.6%N/A0.5 $11.48 11/15/2024334,900 shares $3.74 million +79.2%N/A1 $11.17 10/31/2024186,900 shares $2.08 million -23.4%N/A0.6 $11.13 10/15/2024244,100 shares $2.81 million -6.4%N/A0.6 $11.52 9/30/2024260,800 shares $3.04 million +19.8%N/A0.6 $11.66 9/15/2024217,700 shares $2.56 million +20.5%N/A0.5 $11.76 8/31/2024180,600 shares $2.07 million +196.1%N/A0.4 $11.44 8/15/202461,000 shares $665.21 thousand +2,804.8%N/A0.1 $10.91 7/31/20242,100 shares $22.51 thousand -69.1%N/A0 $10.72 7/15/20246,800 shares $73.37 thousand -86.4%N/A0 $10.79 6/30/202449,900 shares $538.42 thousand -17.3%N/A0.2 $10.79 6/15/202460,300 shares $655.46 thousand +106.5%N/A0.2 $10.87 5/31/202429,200 shares $300.18 thousand -82.6%N/A0.1 $10.28 5/15/2024167,500 shares $1.77 million -37.2%N/A0.7 $10.59 4/30/2024266,900 shares $2.75 million -17.8%N/A1 $10.29 4/15/2024324,600 shares $3.33 million +126.5%N/A1.1 $10.25 3/31/20249,900 shares $104.54 thousand -91.9%N/A0.3 $10.56 3/15/2024122,800 shares $1.29 million -22.4%N/A0.3 $10.49 2/29/2024158,300 shares $1.65 million +6.3%N/A0.4 $10.41 2/15/2024148,900 shares $1.53 million +12.8%N/A0.4 $10.30 1/31/2024132,000 shares $1.32 million +208.4%N/A0.3 $9.98 1/15/202442,800 shares $420.30 thousand +11.2%N/A0.1 $9.82 12/31/202338,500 shares $380.38 thousand +133.3%N/A0.1 $9.88 12/15/202316,500 shares $164.75 thousand -61.0%N/A0 $9.99Washington Thinks They Own Your Bank Account (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what the Department of Justice just admitted in court—claiming cash isn't legally your property. What does that mean? It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 11/30/202342,300 shares $408.20 thousand -12.8%N/A0.1 $9.65 11/15/202348,500 shares $457.84 thousand +12.8%N/A0.1 $9.44 10/31/202343,000 shares $359.91 thousand -28.9%N/A0.1 $8.37 10/15/202360,500 shares $548.74 thousand -45.1%N/A0.1 $9.07 9/30/2023110,100 shares $1.02 million -60.4%N/A0.3 $9.28 9/15/2023278,000 shares $2.75 million +76.2%N/A0.9 $9.91 8/31/2023157,800 shares $1.59 million -29.7%N/A0.6 $10.08 8/15/2023224,400 shares $2.32 million +31.2%N/A0.8 $10.36 7/31/2023171,000 shares $1.81 million -48.2%N/A0.6 $10.58 7/15/2023330,000 shares $3.49 million -11.3%N/A1.2 $10.59 6/30/2023372,000 shares $3.93 million -13.5%N/A1.4 $10.57 6/15/2023430,100 shares $4.64 million +293.1%N/A1.6 $10.79 5/31/2023109,400 shares $1.15 million +83.3%N/A0.4 $10.47 5/15/202359,700 shares $624.46 thousand -82.1%N/A0.2 $10.46 4/30/2023333,700 shares $3.60 million -8.4%N/A1.1 $10.80 4/15/2023364,200 shares $3.96 million +153.1%N/A1.2 $10.87 3/31/2023143,900 shares $1.55 million +134.8%N/A0.4 $10.80 3/15/202361,300 shares $633.84 thousand +54.8%N/A0.1 $10.34 2/28/202339,600 shares $405.11 thousand +83.3%N/A0.1 $10.23 2/15/202321,600 shares $229.39 thousand -60.0%N/A0 $10.62 1/31/202354,000 shares $594.54 thousand +377.9%N/A0.1 $11.01 1/15/202311,300 shares $120.68 thousand -42.6%N/A0 $10.68 12/30/202219,700 shares $203.70 thousand -54.7%N/A0 $10.34 12/15/202243,500 shares $468.06 thousand -58.1%N/A0.1 $10.76 11/30/2022103,800 shares $1.15 million -9.9%N/A0.2 $11.07 11/15/2022115,200 shares $1.21 million +74.3%N/A0.2 $10.48 10/31/202266,100 shares $651.09 thousand -33.8%N/A0.1 $9.85 10/15/202299,900 shares $1.00 million No ChangeN/A0.2 $10.04 9/30/202284,700 shares $870.72 thousand -50.4%N/A0.2 $10.28 9/15/2022170,600 shares $1.91 million -52.5%N/A0.4 $11.20 8/31/2022358,800 shares $4.24 million +27.1%N/A0.8 $11.81 8/15/2022282,200 shares $3.51 million +0.2%N/A0.5 $12.44 7/31/2022281,600 shares $3.48 million -39.5%N/A0.5 $12.35 7/15/2022465,800 shares $5.55 million +41.5%N/A0.8 $11.92 6/30/2022329,300 shares $3.85 million -8.4%N/A0.5 $11.70 6/15/2022359,400 shares $4.04 million +10.5%N/A0.6 $11.25 5/31/2022325,200 shares $4.05 million -1.8%N/A0.6 $12.46 5/15/2022331,300 shares $3.89 million -12.7%N/A0.6 $11.75 4/30/2022379,300 shares $4.64 million +267.5%N/A0.7 $12.22 4/15/2022103,200 shares $1.24 million -47.6%N/A0.2 $11.99 3/31/2022196,800 shares $2.56 million +11.1%N/A0.5 $13.01 3/15/2022177,200 shares $2.36 million +96.2%N/A0.5 $13.31 2/28/202290,300 shares $1.24 million -50.7%N/A0.3 $13.76 2/15/2022183,000 shares $2.47 million +39.7%N/A0.5 $13.51 1/31/2022131,000 shares $1.86 million -15.8%N/A0.4 $14.21 1/15/2022155,500 shares $2.27 million +14.8%N/A0.5 $14.63 12/31/2021135,500 shares $2.05 million +7.5%N/A0.5 $15.12 12/15/2021126,100 shares $1.87 million +15.5%N/A0.4 $14.85 11/30/2021109,200 shares $1.62 million +1.1%N/A0.4 $14.84 11/15/2021108,000 shares $1.61 million -15.6%N/A0.3 $14.88Washington Thinks They Own Your Bank Account (Ad)What If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what the Department of Justice just admitted in court—claiming cash isn't legally your property. What does that mean? It means Washington thinks they can seize, freeze, or drain your accounts—whenever they want.Get your free guide now by clicking here >> 10/29/2021127,900 shares $1.88 million -1.5%N/A0.4 $14.71 10/15/2021129,800 shares $1.90 million +9.1%N/A0.4 $14.64 9/30/2021119,000 shares $1.76 million -5.1%N/A0.4 $14.76 9/15/2021125,400 shares $1.91 million +15.6%N/A0.4 $15.23 8/31/2021108,500 shares $1.67 million -20.8%N/A0.4 $15.35 8/13/2021137,000 shares $2.13 million +5.1%N/A0.5 $15.53 7/30/2021130,400 shares $2.01 million -24.5%N/A0.5 $15.40 7/15/2021172,800 shares $2.68 million +89.9%N/A0.7 $15.53 6/30/202191,000 shares $1.40 million -10.3%N/A0.4 $15.39 6/15/2021101,400 shares $1.54 million -15.1%N/A0.4 $15.15 5/28/2021119,400 shares $1.80 million -15.7%N/A0.5 $15.04 5/14/2021141,700 shares $2.09 million +25.7%N/A0.6 $14.75 4/30/2021112,700 shares $1.66 million +9.1%N/A0.5 $14.76 4/15/2021103,300 shares $1.52 million -7.9%N/A0.5 $14.70 3/31/2021112,200 shares $1.62 million +11.1%N/A0.5 $14.41 3/15/2021101,000 shares $1.44 million +36.3%N/A0.5 $14.30 2/26/202174,100 shares $1.04 million -48.8%N/A0.3 $14.08 2/12/2021144,600 shares $2.15 million +18.5%N/A0.6 $14.86 1/29/2021122,000 shares $1.76 million +3.0%N/A0.6 $14.41 1/15/2021118,500 shares $1.69 million -1.3%N/A0.6 $14.25 12/31/2020120,100 shares $1.71 million -24.8%N/A0.6 $14.25 12/15/2020159,800 shares $2.24 million +11.2%N/A0.8 $14.03 11/30/2020143,700 shares $1.98 million +16.6%N/A0.8 $13.78 11/15/2020123,300 shares $1.66 million +3.3%N/A0.7 $13.45 10/30/2020119,400 shares $1.58 million -10.8%N/A0.6 $13.25 10/15/2020133,800 shares $1.80 million +69.6%N/A0 $13.42 9/30/202078,900 shares $1.06 million +739.4%N/A0.4 $13.49 9/15/202034,500 shares $465.06 thousand +267.0%N/A0.2 $13.48 8/31/20209,400 shares $126.81 thousand -61.3%N/A0 $13.49 NMZ Short Interest - Frequently Asked Questions What is Nuveen Municipal High Income Opportunity Fund's current short interest? Short interest is the volume of Nuveen Municipal High Income Opportunity Fund shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 252,500 shares of NMZ short. Learn More on Nuveen Municipal High Income Opportunity Fund's current short interest. What is a good short interest ratio for Nuveen Municipal High Income Opportunity 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. NMZ shares currently have a short interest ratio of 1.0. Learn More on Nuveen Municipal High Income Opportunity Fund's short interest ratio. Is Nuveen Municipal High Income Opportunity Fund's short interest increasing or decreasing? Nuveen Municipal High Income Opportunity Fund saw a increase in short interest in the month of July. As of July 31st, there was short interest totaling 252,500 shares, an increase of 57.6% from the previous total of 160,200 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. How does Nuveen Municipal High Income Opportunity Fund's short interest compare to its competitors? Here is how the short interest of companies in the industry of "financial services" compare to Nuveen Municipal High Income Opportunity 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 ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), MicroStrategy Incorporated ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short Nuveen Municipal High Income Opportunity Fund stock? Short selling NMZ is an investing strategy that aims to generate trading profit from Nuveen Municipal High Income Opportunity Fund as its price is falling. NMZ shares are trading down $0.02 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 Nuveen Municipal High Income Opportunity Fund? A short squeeze for Nuveen Municipal High Income Opportunity Fund 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 NMZ, which in turn drives the price of the stock up even further. How often is Nuveen Municipal High Income Opportunity 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 NMZ, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Aberdeen Total Dynamic Dividend Fund Short Interest 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 Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:NMZ) was last updated on 8/18/2025 by MarketBeat.com Staff From Our PartnersBiotech Alert: With news on MPox, RSV, and more, this tiny firm could disrupt a $3B marketA small biotech is stepping into the spotlight with a first-in-class antiviral platform—and it could be one of...Smallcaps Daily | SponsoredFormer CIA Officer Reveals How Gold Saved His Life This isn’t just another gold investing book—it’s a survival playbook written by a former CIA officer trained...Advantage Gold | SponsoredGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. 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