Acadia Healthcare (ACHC) Short Interest Ratio & Short Volume $23.27 -0.81 (-3.36%) Closing price 04:00 PM EasternExtended Trading$23.74 +0.47 (+2.02%) As of 05:29 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 AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Acadia Healthcare Short Interest DataAcadia Healthcare (ACHC) has a short interest of 11.05 million shares, representing 12.36% of the float (the number of shares available for trading by the public). This marks a 18.82% increase in short interest from the previous month. The short interest ratio (days to cover) is 4.4, indicating that it would take 4.4 days of the average trading volume of 1.86 million shares to cover all short positions.Current Short Interest11,050,000 sharesPrevious Short Interest9,300,000 sharesChange Vs. Previous Month+18.82%Dollar Volume Sold Short$250.72 millionShort Interest Ratio4.4 Days to CoverLast Record DateJune 30, 2025Outstanding Shares92,120,000 sharesFloat Size89,380,000 sharesShort Percent of Float12.36%Today's Trading Volume1,441,565 sharesAverage Trading Volume1,862,805 sharesToday's Volume Vs. Average77% Short Selling Acadia Healthcare? Sign up to receive the latest short interest report for Acadia Healthcare and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartACHC Short Interest Over TimeACHC Days to Cover Over TimeACHC Percentage of Float Shorted Over Time Acadia Healthcare Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/202511,050,000 shares $250.72 million +18.8%12.4%4.4 $22.69 6/15/20259,300,000 shares $197.44 million -3.2%10.4%3.7 $21.23 5/31/20259,610,000 shares $218.82 million +0.2%10.8%3.9 $22.77 5/15/20259,590,000 shares $245.89 million +14.2%10.7%3.5 $25.64 4/30/20258,400,000 shares $196.56 million +11.4%9.4%3.4 $23.40 4/15/20257,540,000 shares $186.46 million +6.4%8.4%3.4 $24.73 3/31/20257,090,000 shares $214.97 million +8.7%7.8%3.6 $30.32 3/15/20256,520,000 shares $186.08 million +27.3%7.2%3.5 $28.54 2/28/20255,120,000 shares $153.50 million -11.1%5.6%2.8 $29.98 2/15/20255,760,000 shares $236.51 million +4.5%6.3%3.8 $41.06 Get the Latest News and Ratings for ACHC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Acadia Healthcare and its competitors with MarketBeat's FREE daily newsletter. 1/31/20255,510,000 shares $248.56 million -6.9%N/A3.5 $45.11 1/15/20255,920,000 shares $254.80 million -11.2%N/A3.4 $43.04 12/31/20246,670,000 shares $264.47 million -2.6%N/A3.8 $39.65 12/15/20246,850,000 shares $278.52 million +0.6%N/A3.7 $40.66 11/30/20246,810,000 shares $276.69 million +4.0%N/A4.1 $40.63 11/15/20246,550,000 shares $247.72 million +9.4%N/A4.1 $37.82 10/31/20245,990,000 shares $255.71 million +7.5%N/A4 $42.69 10/15/20245,570,000 shares $317.27 million +32.0%N/A4 $56.96 9/30/20244,220,000 shares $267.59 million +13.1%N/A3.3 $63.41 9/15/20243,730,000 shares $291.80 million -3.4%N/A4.1 $78.23 8/31/20243,860,000 shares $316.25 million +5.8%N/A4.2 $81.93 8/15/20243,650,000 shares $270.57 million +3.1%N/A3.8 $74.13 7/31/20243,540,000 shares $229.57 million -1.1%N/A3.5 $64.85 7/15/20243,580,000 shares $233.34 million -6.3%N/A3.9 $65.18 6/30/20243,820,000 shares $258.00 million -4.7%N/A4.4 $67.54 6/15/20244,010,000 shares $262.25 million +11.1%N/A4.7 $65.40 5/31/20243,610,000 shares $248.69 million +10.4%N/A4.1 $68.89 5/15/20243,270,000 shares $224.94 million +1.9%N/A4.1 $68.79 4/30/20243,210,000 shares $237.35 million -8.8%N/A4.8 $73.94 4/15/20243,520,000 shares $257.35 million -5.6%3.9%6.2 $73.11 3/31/20243,730,000 shares $295.49 million +11.3%4.2%6.6 $79.22 3/15/20243,350,000 shares $260.60 million +20.5%3.7%6.2 $77.79 2/29/20242,780,000 shares $231.99 million -15.2%3.1%5.5 $83.45 2/15/20243,280,000 shares $272.90 million +1.9%3.7%6.9 $83.20 1/31/20243,220,000 shares $264.49 million +3.2%3.6%6.7 $82.14 1/15/20243,120,000 shares $267.88 million +4.0%3.5%5.9 $85.86 12/31/20233,000,000 shares $233.28 million -5.7%3.4%5.4 $77.76 12/15/20233,180,000 shares $239.87 million +8.2%3.6%5.8 $75.43 11/30/20232,940,000 shares $214.59 million +4.6%3.3%5.5 $72.99 11/15/20232,810,000 shares $210.53 million -3.8%3.1%5.4 $74.92Presidential Bombshell: $150T Resource to Be Released as soon as this Summer? (Ad)Something extraordinary is happening in Washington. For the first time in over a century, a sitting President could release a national treasure that's been tied up in red tape, for generations. I'm talking about a $150 trillion American asset that's scattered across all 50 states. While the mainstream media focuses on political theater, this story is quietly developing behind closed doors.We recently interviewed Rickards to get the full story and understand how everyday Americans can pre 10/31/20232,920,000 shares $214.65 million +1.0%3.3%5.9 $73.51 10/15/20232,890,000 shares $220.59 million -3.3%3.2%6.1 $76.33 9/30/20232,990,000 shares $210.23 million +4.9%3.3%5.9 $70.31 9/15/20232,850,000 shares $199.76 million -2.4%3.2%5.3 $70.09 8/31/20232,920,000 shares $225.13 million +2.8%3.3%5 $77.10 8/15/20232,840,000 shares $218.62 million -6.6%3.2%4.5 $76.98 7/31/20233,040,000 shares $240.25 million -25.3%3.4%4.5 $79.03 7/15/20234,070,000 shares $306.47 million -10.8%4.6%5.7 $75.30 6/30/20234,560,000 shares $363.16 million +17.2%5.1%7.2 $79.64 6/15/20233,890,000 shares $285.84 million +4.0%4.4%6.3 $73.48 5/31/20233,740,000 shares $264.16 million -3.9%4.2%6.5 $70.63 5/15/20233,890,000 shares $279.30 million +8.1%4.4%6.1 $71.80 4/30/20233,600,000 shares $260.24 million -0.3%4.0%5.8 $72.29 4/15/20233,610,000 shares $273.42 million -1.9%4.1%6.2 $75.74 3/31/20233,680,000 shares $265.88 million -2.1%4.2%6.4 $72.25 3/15/20233,760,000 shares $257.41 million +3.0%4.2%6.6 $68.46 2/28/20233,650,000 shares $264.66 million +0.8%4.1%6 $72.51 2/15/20233,620,000 shares $293.94 million -3.0%4.1%6.8 $81.20 1/31/20233,730,000 shares $313.39 million +9.7%4.2%6.5 $84.02 1/15/20233,400,000 shares $292.40 million +0.9%3.8%5.6 $86.00 12/30/20223,370,000 shares $277.42 million -2.0%3.8%5.5 $82.32 12/15/20223,440,000 shares $291.92 million -5.2%3.9%5.3 $84.86 11/30/20223,630,000 shares $323.29 million -2.2%4.1%5.6 $89.06 11/15/20223,710,000 shares $301.10 million -11.0%4.2%5.9 $81.16 10/31/20224,170,000 shares $339.02 million -7.5%4.7%6.9 $81.30 10/15/20224,510,000 shares $361.66 million +4.2%5.1%7.7 $80.19 9/30/20224,330,000 shares $338.52 million +2.1%4.9%7.4 $78.18 9/15/20224,240,000 shares $355.31 million +3.2%4.8%7.2 $83.80 8/31/20224,110,000 shares $336.73 million +12.6%4.6%7.1 $81.93 8/15/20223,650,000 shares $301.60 million +3.1%4.1%6.8 $82.63 7/31/20223,540,000 shares $293.50 million +3.8%4.0%6.4 $82.91 7/15/20223,410,000 shares $259.19 million +1.5%4.0%5.7 $76.01 6/30/20223,360,000 shares $227.24 million -7.4%3.9%5.3 $67.63 6/15/20223,630,000 shares $239.40 million +3.1%4.2%5.6 $65.95 5/31/20223,520,000 shares $250.52 million -5.9%4.0%5.5 $71.17 5/15/20223,740,000 shares $264.01 million +4.2%4.2%5.6 $70.59 4/30/20223,590,000 shares $243.69 million +18.5%4.0%5.6 $67.88 4/15/20223,030,000 shares $227.31 million +9.0%3.4%5.2 $75.02 3/31/20222,780,000 shares $182.17 million -14.7%3.2%5.1 $65.53 3/15/20223,260,000 shares $209.75 million -4.4%3.7%7.1 $64.34 2/28/20223,410,000 shares $193.38 million +3.3%3.9%7.6 $56.71 2/15/20223,300,000 shares $180.41 million +10.4%3.7%7.9 $54.67 1/31/20222,990,000 shares $157.42 million +6.8%3.4%7.3 $52.65 1/15/20222,800,000 shares $161.36 million +2.6%3.2%6.5 $57.63 12/31/20212,730,000 shares $165.71 million -1.4%3.1%6.5 $60.70 12/15/20212,770,000 shares $160.49 million -1.8%3.1%6.5 $57.94 11/30/20212,820,000 shares $158.40 million +1.4%3.2%6.3 $56.17 11/15/20212,780,000 shares $180.45 million No Change3.1%6.3 $64.91 10/29/20212,780,000 shares $172.36 million -5.1%3.1%6.1 $62.00 10/15/20212,930,000 shares $166.69 million +0.3%3.3%6.9 $56.89Presidential Bombshell: $150T Resource to Be Released as soon as this Summer? (Ad)Something extraordinary is happening in Washington. For the first time in over a century, a sitting President could release a national treasure that's been tied up in red tape, for generations. I'm talking about a $150 trillion American asset that's scattered across all 50 states. While the mainstream media focuses on political theater, this story is quietly developing behind closed doors.We recently interviewed Rickards to get the full story and understand how everyday Americans can pre 9/30/20212,920,000 shares $186.24 million -9.6%3.3%6.9 $63.78 9/15/20213,230,000 shares $192.96 million +4.5%3.7%8.1 $59.74 8/31/20213,090,000 shares $204.31 million +12.4%3.5%8.5 $66.12 8/13/20212,750,000 shares $170.23 million +8.7%3.1%7.5 $61.90 7/30/20212,530,000 shares $156.15 million -10.9%2.9%7 $61.72 7/15/20212,840,000 shares $171.51 million -4.7%3.2%7.4 $60.39 6/30/20212,980,000 shares $187.00 million -10.8%3.4%7.5 $62.75 6/15/20213,340,000 shares $219.47 million -4.6%3.8%8 $65.71 5/28/20213,500,000 shares $225.26 million -5.2%4.0%7.8 $64.36 5/14/20213,690,000 shares $234.39 million -4.7%4.2%6.7 $63.52 4/30/20213,870,000 shares $237.66 million -7.6%4.4%6.5 $61.41 4/15/20214,190,000 shares $246.67 million -1.6%4.8%7.1 $58.87 3/31/20214,260,000 shares $248.95 million -5.3%4.8%7.2 $58.44 3/15/20214,500,000 shares $268.74 million -1.3%5.2%7.2 $59.72 2/26/20214,560,000 shares $234.20 million -16.2%5.2%7.2 $51.36 2/12/20215,440,000 shares $289.30 million +1.3%6.2%9.4 $53.18 1/29/20215,370,000 shares $273.28 million -2.5%6.2%9.7 $50.89 1/15/20215,510,000 shares $280.18 million No Change6.3%9.5 $50.85 ACHC Short Interest - Frequently Asked Questions What is Acadia Healthcare's current short interest? Short interest is the volume of Acadia Healthcare shares that have been sold short but have not yet been closed out or covered. As of June 30th, traders have sold 11,050,000 shares of ACHC short. 12.36% of Acadia Healthcare's shares are currently sold short. Learn More on Acadia Healthcare's current short interest. What is a good short interest ratio for Acadia Healthcare? 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. ACHC shares currently have a short interest ratio of 4.0. Learn More on Acadia Healthcare's short interest ratio. Which institutional investors are shorting Acadia Healthcare? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Acadia Healthcare: Jane Street Group LLC, Repertoire Partners LP, Cubist Systematic Strategies LLC, Jane Street Group LLC, Walleye Trading LLC, Simplex Trading LLC, and Muzinich & Co. Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Acadia Healthcare? 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. 12.36% of Acadia Healthcare's floating shares are currently sold short. Is Acadia Healthcare's short interest increasing or decreasing? Acadia Healthcare saw a increase in short interest in the month of June. As of June 30th, there was short interest totaling 11,050,000 shares, an increase of 18.8% from the previous total of 9,300,000 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. What is Acadia Healthcare's float size? Acadia Healthcare currently has issued a total of 92,120,000 shares. Some of Acadia Healthcare's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Acadia Healthcare currently has a public float of 89,380,000 shares. How does Acadia Healthcare's short interest compare to its competitors? 12.36% of Acadia Healthcare's shares are currently sold short. Here is how the short interest of companies compare to Acadia Healthcare: Integer Holdings Corporation (7.06%), The Ensign Group, Inc. (3.73%), Select Medical Holdings Corporation (2.76%), Brookdale Senior Living Inc. (4.84%), U.S. Physical Therapy, Inc. (0.92%), Petco Health and Wellness Company, Inc. (0.01%), Community Health Systems, Inc. (11.29%), HCA Healthcare, Inc. (2.19%), Alcon (1.26%), Tenet Healthcare Corporation (3.84%), 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 Acadia Healthcare stock? Short selling ACHC is an investing strategy that aims to generate trading profit from Acadia Healthcare as its price is falling. ACHC shares are trading down $0.81 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 Acadia Healthcare? A short squeeze for Acadia Healthcare 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 ACHC, which in turn drives the price of the stock up even further. How often is Acadia Healthcare'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 ACHC, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies ITGR Short Interest ENSG Short Interest SEM Short Interest BKD Short Interest USPH Short Interest WOOF Short Interest CYH Short Interest HCA Short Interest ALC Short Interest THC Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:ACHC) was last updated on 7/15/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. 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