iShares S&P 100 ETF (OEF) Short Interest Ratio & Short Volume $289.80 -2.61 (-0.89%) Closing price 04:10 PM EasternExtended Trading$290.04 +0.24 (+0.08%) As of 04:57 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 AnalysisChartHeadlinesHoldingsOwnershipRatingsShort InterestBuy This Stock iShares S&P 100 ETF Short Interest DataiShares S&P 100 ETF (OEF) has a short interest of 185,600 shares. This marks a -18.38% 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 326,203 shares to cover all short positions.Current Short Interest185,600 sharesPrevious Short Interest227,400 sharesChange Vs. Previous Month-18.38%Dollar Volume Sold Short$53.41 millionShort Interest Ratio0.3 Days to CoverLast Record DateMay 15, 2025Outstanding Shares65,950,000 sharesPercentage of Shares Shorted0.28%Today's Trading Volume585,448 sharesAverage Trading Volume326,203 sharesToday's Volume Vs. Average179% Short Selling iShares S&P 100 ETF? Sign up to receive the latest short interest report for iShares S&P 100 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 ChartOEF Short Interest Over TimeOEF Days to Cover Over TimeOEF Percentage of Float Shorted Over Time iShares S&P 100 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 5/15/2025185,600 shares $53.41 million -18.4%N/A0.3 $287.79 4/30/2025227,400 shares $61.12 million -18.1%N/A0.4 $268.79 4/15/2025277,800 shares $72.52 million +49.7%N/A0.5 $261.04 3/14/2025214,800 shares $58.81 million -26.9%N/A0.5 $273.78 2/14/2025147,500 shares $44.10 million +0.2%N/A0.7 $299.01 1/31/2025147,200 shares $43.36 million +7.2%N/A0.7 $294.56 1/15/2025137,300 shares $39.95 million +6.3%N/A0.6 $290.94 OEF Short Interest - Frequently Asked Questions What is iShares S&P 100 ETF's current short interest? Short interest is the volume of iShares S&P 100 ETF shares that have been sold short but have not yet been closed out or covered. As of May 15th, investors have sold 185,600 shares of OEF short. Learn More on iShares S&P 100 ETF's current short interest. Which institutional investors are shorting iShares S&P 100 ETF? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of iShares S&P 100 ETF: Jane Street Group LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is iShares S&P 100 ETF's short interest increasing or decreasing? iShares S&P 100 ETF saw a decrease in short interest during the month of May. As of May 15th, there was short interest totaling 185,600 shares, a decrease of 18.4% from the previous total of 227,400 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 S&P 100 ETF's short interest compare to its competitors? Here is how the short interest of companies compare to iShares S&P 100 ETF: Schwab Fundamental U.S. Large Company ETF (0.43%), Vanguard S&P 500 Growth ETF (0.23%), Schwab Fundamental International Equity ETF (0.07%), ProShares UltraPro QQQ (7.64%), Invesco S&P 500 Quality ETF (0.26%), Goldman Sachs ActiveBeta U.S. Large Cap Equity ETF (0.06%), iShares Russell Top 200 Growth ETF (0.16%), Schwab U.S. Large-Cap Value ETF (0.25%), SPDR Portfolio S&P 500 Value ETF (0.18%), Vanguard Russell 1000 Value ETF (0.31%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($29.20 billion), Strategy Incorporated ($10.88 billion), iShares 20+ Year Treasury Bond ETF ($10.04 billion), Capital One Financial Co. ($5.51 billion), Charter Communications, Inc. ($5.00 billion), Super Micro Computer, Inc. ($4.43 billion), Apollo Global Management, Inc. ($4.02 billion), Hims & Hers Health, Inc. ($3.65 billion), VanEck Semiconductor ETF ($3.27 billion), and Coinbase Global, Inc. ($3.10 billion). View all of the most shorted stocks. What does it mean to sell short iShares S&P 100 ETF stock? Short selling OEF is an investing strategy that aims to generate trading profit from iShares S&P 100 ETF as its price is falling. OEF shares are trading down $2.61 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 S&P 100 ETF? A short squeeze for iShares S&P 100 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 OEF, which in turn drives the price of the stock up even further. How often is iShares S&P 100 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 OEF, twice per month. The most recent reporting period available is May, 15 2025. More Short Interest Resources from MarketBeat Related Companies Schwab Fundamental U.S. Large Company ETF Short Interest Vanguard S&P 500 Growth ETF Short Interest Schwab Fundamental International Equity ETF Short Interest ProShares UltraPro QQQ Short Interest Invesco S&P 500 Quality ETF Short Interest Goldman Sachs ActiveBeta U.S. Large Cap Equity ETF Short Interest iShares Russell Top 200 Growth ETF Short Interest Schwab U.S. Large-Cap Value ETF Short Interest SPDR Portfolio S&P 500 Value ETF Short Interest Vanguard Russell 1000 Value ETF Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSEARCA:OEF) was last updated on 6/5/2025 by MarketBeat.com Staff From Our PartnersEveryone’s watching Nvidia right now. 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