SPDR S&P 400 Mid Cap Growth ETF (MDYG) Short Interest Ratio & Short Volume $92.28 +1.09 (+1.20%) Closing price 10/8/2025 04:10 PM EasternExtended Trading$92.26 -0.02 (-0.02%) As of 10/8/2025 04:10 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 AnalysisChartDividendHoldingsOwnershipRatingsShort InterestBuy This Stock SPDR S&P 400 Mid Cap Growth ETF Short Interest DataSPDR S&P 400 Mid Cap Growth ETF (MDYG) has a short interest of 40,500 shares. This marks a 118.92% 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 134,581 shares to cover all short positions.Current Short Interest40,500 sharesPrevious Short Interest18,500 sharesChange Vs. Previous Month+118.92%Dollar Volume Sold Short$3.73 millionShort Interest Ratio0.5 Days to CoverLast Record DateSeptember 15, 2025Outstanding Shares26,450,000 sharesPercentage of Shares Shorted0.15%Today's Trading Volume60,969 sharesAverage Trading Volume134,581 sharesToday's Volume Vs. Average45% Short Selling SPDR S&P 400 Mid Cap Growth ETF? Sign up to receive the latest short interest report for SPDR S&P 400 Mid Cap Growth ETF and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartMDYG Short Interest Over TimeMDYG Days to Cover Over TimeMDYG Percentage of Float Shorted Over Time SPDR S&P 400 Mid Cap Growth 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 9/15/202540,500 shares $3.73 million +118.9%N/A0.5 $92.13 8/31/202518,500 shares $1.68 million +35.0%0.1%0.3 $90.81 8/15/202513,700 shares $1.22 million -45.6%N/A0.2 $88.96 7/31/202525,200 shares $2.24 million -52.1%0.1%0.3 $88.75 7/15/202552,600 shares $4.58 million +211.2%N/A0.6 $87.07 6/30/202516,900 shares $1.47 million -65.2%0.1%0.1 $86.87 6/15/202548,600 shares $4.08 million +205.7%0.2%0.3 $83.95 5/31/202515,900 shares $1.34 million -66.4%0.1%0.1 $84.10 5/15/202547,300 shares $4.04 million -2.7%N/A0.2 $85.41 4/30/202548,600 shares $3.85 million +33.2%N/A0.2 $79.20 4/15/202536,500 shares $2.78 million +170.4%N/A0.2 $76.23 3/14/202541,600 shares $3.32 million -18.4%N/A0.3 $79.88 2/14/202575,200 shares $6.71 million +107.2%N/A0.6 $89.19 1/31/202536,300 shares $3.27 million -20.0%N/A0.3 $90.01 1/15/202545,400 shares $4.06 million -57.7%N/A0.4 $89.39 MDYG Short Interest - Frequently Asked Questions What is SPDR S&P 400 Mid Cap Growth ETF's current short interest? Short interest is the volume of SPDR S&P 400 Mid Cap Growth ETF shares that have been sold short but have not yet been closed out or covered. As of September 15th, traders have sold 40,500 shares of MDYG short. Learn More on SPDR S&P 400 Mid Cap Growth ETF's current short interest. Is SPDR S&P 400 Mid Cap Growth ETF's short interest increasing or decreasing? SPDR S&P 400 Mid Cap Growth ETF saw a increase in short interest during the month of September. As of September 15th, there was short interest totaling 40,500 shares, an increase of 118.9% from the previous total of 18,500 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 SPDR S&P 400 Mid Cap Growth ETF's short interest compare to its competitors? Here is how the short interest of companies compare to SPDR S&P 400 Mid Cap Growth ETF: SPDR S&P 400 Mid Cap Value ETF (0.17%), Vanguard S&P Mid-Cap 400 ETF (0.19%), JPMorgan BetaBuilders U.S. Mid Cap Equity ETF (0.01%), iShares Morningstar Mid-Cap Growth ETF (0.23%), Vanguard S&P Mid-Cap 400 Growth ETF (0.12%), iShares Morningstar Mid-Cap ETF (0.12%), First Trust Mid Cap Core AlphaDEX Fund (0.01%), Fidelity Enhanced Mid Cap ETF (0.12%), Vanguard S&P Mid-Cap 400 Value ETF (0.10%), WisdomTree U.S. MidCap Dividend Fund (0.05%), 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 Corporation ($8.81 billion), Canadian Natural Resources Limited ($5.82 billion), Reddit Inc. ($5.19 billion), Coinbase Global, Inc. ($4.52 billion), Robinhood Markets, Inc. ($4.30 billion), Charter Communications, Inc. ($3.75 billion), CoreWeave Inc. ($3.66 billion), Seagate Technology Holdings PLC ($3.57 billion), Live Nation Entertainment, Inc. ($3.33 billion), and Rocket Lab Corporation ($3.26 billion). View all of the most shorted stocks. What does it mean to sell short SPDR S&P 400 Mid Cap Growth ETF stock? Short selling MDYG is an investing strategy that aims to generate trading profit from SPDR S&P 400 Mid Cap Growth ETF as its price is falling. MDYG shares are trading up $1.09 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 SPDR S&P 400 Mid Cap Growth ETF? A short squeeze for SPDR S&P 400 Mid Cap Growth ETF 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 MDYG, which in turn drives the price of the stock up even further. How often is SPDR S&P 400 Mid Cap Growth 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 MDYG, twice per month. The most recent reporting period available is September, 15 2025. More Short Interest Resources from MarketBeat Related Companies SPDR S&P 400 Mid Cap Value ETF Short Interest Vanguard S&P Mid-Cap 400 ETF Short Interest JPMorgan BetaBuilders U.S. Mid Cap Equity ETF Short Interest iShares Morningstar Mid-Cap Growth ETF Short Interest Vanguard S&P Mid-Cap 400 Growth ETF Short Interest iShares Morningstar Mid-Cap ETF Short Interest First Trust Mid Cap Core AlphaDEX Fund Short Interest Fidelity Enhanced Mid Cap ETF Short Interest Vanguard S&P Mid-Cap 400 Value ETF Short Interest WisdomTree U.S. MidCap Dividend 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 (NYSEARCA:MDYG) was last updated on 10/9/2025 by MarketBeat.com Staff From Our PartnersBitcoin grabs headlines, but smart money likes this tokenBitcoin grabs headlines, but smart money likes this token My research team has identified the token positio...Crypto 101 Media | SponsoredMagnificent 7 being replaced by the “Hidden 7”?BULLISH: It's time to buy this 'hidden' AI stock An award-winning stock-rating system has turned BULLISH on...Chaikin Analytics | SponsoredCapital Gains Tax Strategies for SeniorsCapital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. 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