Flaherty & Crumrine Preferred Income Opportunity Fund (PFO) Short Interest Ratio & Short Volume $9.11 -0.04 (-0.44%) As of 01:58 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsDividendHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Flaherty & Crumrine Preferred Income Opportunity Fund Short Interest DataFlaherty & Crumrine Preferred Income Opportunity Fund (PFO) has a short interest of 15,800 shares, representing 0.12% of the float (the number of shares available for trading by the public). This marks a 295.00% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.5, indicating that it would take 0.5 days of the average trading volume of 34,387 shares to cover all short positions.Current Short Interest15,800 sharesPrevious Short Interest4,000 sharesChange Vs. Previous Month+295.00%Dollar Volume Sold Short$141.88 thousandShort Interest Ratio0.5 Days to CoverLast Record DateMay 31, 2025Outstanding Shares13,077,000 sharesShort Percent of Float0.12%Today's Trading Volume30,034 sharesAverage Trading Volume34,387 sharesToday's Volume Vs. Average87% Short Selling Flaherty & Crumrine Preferred Income Opportunity Fund? Sign up to receive the latest short interest report for Flaherty & Crumrine Preferred 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 ChartPFO Short Interest Over TimePFO Days to Cover Over TimePFO Percentage of Float Shorted Over Time Flaherty & Crumrine Preferred 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 5/31/202515,800 shares $141.88 thousand +295.0%0.1%0.5 $8.98 5/15/20254,000 shares $35.88 thousand +33.3%0.0%0.1 $8.97 4/30/20253,000 shares $26.37 thousand -79.3%N/A0.1 $8.79 4/15/202514,500 shares $125.79 thousand -63.8%0.1%0.6 $8.68 3/31/202540,000 shares $367.40 thousand +45.5%N/A1.6 $9.19 3/15/202527,500 shares $251.90 thousand +95.0%N/A1 $9.16 2/28/202514,100 shares $130.14 thousand +64.0%N/A0.5 $9.23 2/15/20258,600 shares $79.29 thousand -45.9%N/A0.3 $9.22 1/31/202515,900 shares $145.49 thousand +30.3%N/A0.5 $9.15 1/15/202512,200 shares $110.65 thousand -57.0%N/A0.3 $9.07 Get the Latest News and Ratings for PFO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Flaherty & Crumrine Preferred Income Opportunity Fund and its competitors with MarketBeat's FREE daily newsletter. 12/31/202428,400 shares $255.88 thousand +30.3%N/A0.8 $9.01 12/15/202421,800 shares $200.12 thousand -33.3%N/A0.6 $9.18 11/30/202432,700 shares $300.51 thousand +26.3%N/A0.9 $9.19 11/15/202425,900 shares $234.40 thousand -15.4%N/A0.7 $9.05 10/31/202430,600 shares $280.60 thousand -13.1%N/A0.8 $9.17 10/15/202435,200 shares $330.18 thousand +175.0%N/A0.8 $9.38 9/30/202412,800 shares $120.45 thousand -56.5%N/A0.3 $9.41 9/15/202429,400 shares $272.24 thousand +25.6%N/A0.7 $9.26 8/31/202423,400 shares $212.00 thousand +408.7%N/A0.6 $9.06 8/15/20244,600 shares $40.16 thousand -56.6%N/A0.1 $8.73 7/31/202410,600 shares $90.74 thousand +29.3%N/A0.3 $8.56 7/15/20248,200 shares $70.03 thousand -39.7%N/A0.3 $8.54 6/30/202413,600 shares $115.19 thousand -44.9%N/A0.5 $8.47 6/15/202424,700 shares $207.73 thousand +64.7%N/A0.8 $8.41 5/31/202415,000 shares $125.25 thousand +87.5%N/A0.5 $8.35 5/15/20248,000 shares $66.96 thousand -40.3%N/A0.3 $8.37 4/30/202413,400 shares $108.14 thousand +148.2%N/A0.4 $8.07 4/15/20245,400 shares $42.82 thousand +1.9%N/A0.2 $7.93 3/31/202464,800 shares $546.91 thousand +1,863.6%N/A1.9 $8.44 3/15/20243,300 shares $27.29 thousand +3,200.0%N/A0.1 $8.27 2/29/2024100 shares $826.00 -85.7%N/A0 $8.26 2/15/2024700 shares $5.78 thousand -92.1%N/A0 $8.26 1/31/20248,800 shares $73.57 thousand -61.2%N/A0.2 $8.36 1/15/202422,700 shares $188.41 thousand +116.2%N/A0.7 $8.30 12/31/202310,500 shares $83.58 thousand +123.4%N/A0.3 $7.96 12/15/20234,700 shares $37.74 thousand +370.0%N/A0.1 $8.03 11/30/20231,000 shares $7.72 thousand -81.8%N/A0 $7.72 11/15/20235,500 shares $41.47 thousand -59.0%N/A0.2 $7.54 10/31/202313,400 shares $94.74 thousand +13.6%N/A0.5 $7.07 10/15/202311,800 shares $83.43 thousand +47.5%N/A0.5 $7.07Your Bank Account Is No Longer Safe (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 >> 9/30/20238,000 shares $59.52 thousand +50.9%N/A0.3 $7.44 9/15/20235,300 shares $39.64 thousand -48.0%N/A0.2 $7.48 8/31/202310,200 shares $78.85 thousand +27.5%N/A0.4 $7.73 8/15/20238,000 shares $62.08 thousand -7.0%N/A0.3 $7.76 7/31/20238,600 shares $68.71 thousand +10.3%N/A0.3 $7.99 7/15/20237,800 shares $61.23 thousand -43.1%N/A0.3 $7.85 6/30/202313,700 shares $109.33 thousand +29.3%N/A0.6 $7.98 6/15/202310,600 shares $84.06 thousand +562.5%N/A0.4 $7.93 5/31/20231,600 shares $12.21 thousand -72.4%N/A0.1 $7.63 5/15/20235,800 shares $42.92 thousand -18.3%N/A0.2 $7.40 4/30/20237,100 shares $57.23 thousand -6.6%N/A0.3 $8.06 4/15/20237,600 shares $62.70 thousand +216.7%N/A0.3 $8.25 3/31/20232,400 shares $19.80 thousand -60.7%N/A0.1 $8.25 3/15/20236,100 shares $49.11 thousand +19.6%N/A0.2 $8.05 2/28/20235,100 shares $46.61 thousand +121.7%N/A0.2 $9.14 2/15/20232,300 shares $22.07 thousand -68.9%N/A0.1 $9.60 1/31/20237,400 shares $70.89 thousand +57.5%N/A0.3 $9.58 1/15/20234,700 shares $43.62 thousand +161.1%N/A0.2 $9.28 12/30/20221,800 shares $15.48 thousand -84.4%N/A0.1 $8.60 12/15/202211,500 shares $105.11 thousand +8.5%N/A0.5 $9.14 11/30/202210,600 shares $98.90 thousand -62.3%N/A0.5 $9.33 11/15/202228,100 shares $257.40 thousand -1.1%N/A1.2 $9.16 10/31/202228,400 shares $242.25 thousand +12.7%N/A1.3 $8.53 10/15/202225,200 shares $210.92 thousand No ChangeN/A1.2 $8.37 9/30/202220,500 shares $175.69 thousand +5,025.0%N/A1 $8.57 9/15/2022400 shares $3.68 thousand -92.3%N/A0 $9.19 8/31/20225,200 shares $49.97 thousand No ChangeN/A0.3 $9.61 8/15/20225,200 shares $53.66 thousand +333.3%N/A0.2 $10.32 7/31/20221,200 shares $12.18 thousand -70.0%N/A0 $10.15 7/15/20224,000 shares $39.08 thousand +263.6%N/A0.2 $9.77 6/30/20221,100 shares $10.47 thousand -70.3%N/A0 $9.52 6/15/20223,700 shares $35.63 thousand -7.5%N/A0.1 $9.63 5/31/20224,000 shares $39.72 thousand -74.7%N/A0.2 $9.93 5/15/202215,800 shares $155.63 thousand +154.8%N/A0.6 $9.85 4/30/20226,200 shares $64.23 thousand -25.3%N/A0.2 $10.36 4/15/20228,300 shares $89.47 thousand -31.4%N/A0.3 $10.78 3/31/202212,100 shares $139.15 thousand +168.9%N/A0.4 $11.50 3/15/20224,500 shares $49.10 thousand +400.0%N/A0.2 $10.91 2/28/2022900 shares $9.79 thousand -83.6%N/A0 $10.88 2/15/20225,500 shares $60.94 thousand -28.6%N/A0.2 $11.08 1/31/20227,700 shares $90.09 thousand +492.3%N/A0.3 $11.70 1/15/20221,300 shares $16.09 thousand -23.5%N/A0.1 $12.38 12/31/20211,700 shares $21.68 thousand No ChangeN/A0.1 $12.75 9/30/2021100 shares $1.28 thousand -96.6%N/A0 $12.82 9/15/20212,900 shares $37.58 thousand +61.1%N/A0.2 $12.96 8/31/20211,800 shares $23.33 thousand -43.8%N/A0.1 $12.96 8/13/20213,200 shares $42.43 thousand +966.7%N/A0.2 $13.26 7/30/2021300 shares $3.90 thousand -94.3%N/A0 $12.99 7/15/20215,300 shares $70.76 thousand +55.9%N/A0.5 $13.35 6/30/20213,400 shares $45.39 thousand +41.7%N/A0.2 $13.35Your Bank Account Is No Longer Safe (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 >> 6/15/20212,400 shares $32.11 thousand -22.6%N/A0.2 $13.38 5/28/20213,100 shares $40.80 thousand +675.0%N/A0.2 $13.16 5/14/2021400 shares $5.19 thousand -96.3%N/A0 $12.97 4/30/202110,900 shares $146.28 thousand +53.5%N/A0.6 $13.42 4/15/20217,100 shares $94.43 thousand +42.0%N/A0.3 $13.30 3/31/20215,000 shares $65.25 thousand -74.1%N/A0.2 $13.05 3/15/202119,300 shares $252.25 thousand +171.8%N/A0.7 $13.07 2/26/20217,100 shares $87.90 thousand -81.5%N/A0.3 $12.38 2/12/202138,400 shares $528 thousand +146.2%N/A1.5 $13.75 1/29/202115,600 shares $199.52 thousand +290.0%N/A0.6 $12.79 1/15/20214,000 shares $49.88 thousand -54.6%N/A0.2 $12.47 12/31/20208,800 shares $113.61 thousand -49.7%N/A0.4 $12.91 12/15/202017,500 shares $232.58 thousand +264.6%N/A1 $13.29 11/30/20204,800 shares $60.19 thousand -4.0%N/A0.3 $12.54 11/15/20205,000 shares $61.30 thousand +400.0%N/A0.3 $12.26 10/30/20201,000 shares $11.67 thousand -85.1%N/A0.1 $11.67 10/15/20206,700 shares $79.73 thousand +42.6%N/A0 $11.90 PFO Short Interest - Frequently Asked Questions What is Flaherty & Crumrine Preferred Income Opportunity Fund's current short interest? Short interest is the volume of Flaherty & Crumrine Preferred Income Opportunity Fund shares that have been sold short but have not yet been covered or closed out. As of May 31st, investors have sold 15,800 shares of PFO short. 0.12% of Flaherty & Crumrine Preferred Income Opportunity Fund's shares are currently sold short. Learn More on Flaherty & Crumrine Preferred Income Opportunity Fund's current short interest. What is a good short interest percentage for Flaherty & Crumrine Preferred Income Opportunity Fund? 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. 0.12% of Flaherty & Crumrine Preferred Income Opportunity Fund's floating shares are currently sold short. Is Flaherty & Crumrine Preferred Income Opportunity Fund's short interest increasing or decreasing? Flaherty & Crumrine Preferred Income Opportunity Fund saw a increase in short interest during the month of May. As of May 31st, there was short interest totaling 15,800 shares, an increase of 295.0% from the previous total of 4,000 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 Flaherty & Crumrine Preferred Income Opportunity Fund's short interest compare to its competitors? 0.12% of Flaherty & Crumrine Preferred Income Opportunity Fund's shares are currently sold short. Here is how the short interest of companies in the industry of "financial services" compare to Flaherty & Crumrine Preferred Income Opportunity Fund: Tortoise Energy Infrastructure Co. (0.18%), Royce Micro-Cap Trust, Inc. (0.06%), Eaton Vance Municipal Income Trust (0.55%), BlackRock MuniVest Fund, Inc. (0.05%), Barings Corporate Investors (0.14%), Saratoga Investment Corp. (1.80%), BlackRock MuniYield New York Quality Fund, Inc. (0.13%), BNY Mellon Strategic Municipals, Inc. (0.07%), Abrdn Life Sciences Investors (0.17%), DWS Municipal Income Trust (0.48%), 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 ($64.96 billion), Invesco QQQ ($27.88 billion), iShares Russell 2000 ETF ($19.94 billion), iShares 20+ Year Treasury Bond ETF ($9.69 billion), Strategy Incorporated ($8.58 billion), SPDR S&P Biotech ETF ($5.72 billion), Invesco S&P 500 Equal Weight ETF ($5.45 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.70 billion), Charter Communications, Inc. ($4.54 billion), and Industrial Select Sector SPDR Fund ($4.49 billion). View all of the most shorted stocks. What does it mean to sell short Flaherty & Crumrine Preferred Income Opportunity Fund stock? Short selling PFO is an investing strategy that aims to generate trading profit from Flaherty & Crumrine Preferred Income Opportunity Fund as its price is falling. PFO 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 Flaherty & Crumrine Preferred Income Opportunity Fund? A short squeeze for Flaherty & Crumrine Preferred 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 PFO, which in turn drives the price of the stock up even further. How often is Flaherty & Crumrine Preferred 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 PFO, twice per month. The most recent reporting period available is May, 31 2025. More Short Interest Resources from MarketBeat Related Companies Tortoise Energy Infrastructure Short Interest Royce Micro-Cap Trust Short Interest Eaton Vance Municipal Income Trust Short Interest BlackRock MuniVest Fund Short Interest Barings Corporate Investors Short Interest Saratoga Investment Short Interest BlackRock MuniYield New York Quality Fund Short Interest BNY Mellon Strategic Municipals Short Interest Abrdn Life Sciences Investors Short Interest DWS Municipal Income 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:PFO) was last updated on 6/13/2025 by MarketBeat.com Staff From Our PartnersYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? Sounds insane, but that's exactly what ...Priority Gold | SponsoredUtah’s New Oil FindThe Real Reason 218,000 Acres Just Vanished The government just quietly leased 218,000 acres in the middle ...Stansberry Research | SponsoredThe End of Elon Musk…?The End of Elon Musk? Don't make him laugh. Jeff Brown has been hearing this same tired story for years, an...Brownstone Research | SponsoredWhy July 22nd Could Mean Big Changes for Social SecurityIn a stunning move, President Trump has authorized an AI-led transformation of federal agencies, including Soc...Altimetry | SponsoredElon’s NEXT Big IPO?Cancel your internet TODAY!? Take your latest internet bill and light it on fire… then count the seconds it...Banyan Hill Publishing | SponsoredTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredBanks aren’t ready for this altcoin—are you?Donald Trump just fast-tracked TWO major crypto bills with an August deadline! Your window of opportunity i...Crypto 101 Media | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Flaherty & Crumrine Preferred Income Opportunity Fund Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Flaherty & Crumrine Preferred Income Opportunity Fund With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
