ATI (ATI) Short Interest Ratio & Short Volume $178.84 +13.54 (+8.19%) As of 02:56 PM Eastern This is a fair market value price provided by Massive. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsInsider TradesNews and TrendsOptions ChainOwnershipSEC FilingsShort Interest ATI Short Interest OverviewAs of October 15, 2026, ATI (ATI) had a short interest of 4.73 million shares sold short, representing 3.51% of the public float. This marks a -0.18% decrease in short interest since the prior report. The short interest ratio (days to cover) is 3.9, meaning it would take 3.9 days of the average trading volume of 1.83 million shares to cover all short positions.Current Short Interest4,730,551 sharesPrevious Short Interest4,739,175 sharesChange Vs. Previous Month-0.18%Dollar Volume Sold Short$894.59 millionShort Interest Ratio3.9 Days to CoverLast Record DateOctober 15, 2026Outstanding Shares136,170,000 sharesShort Percent of Float3.51%Today's Trading Volume2,173,775 sharesAverage Trading Volume1,829,696 sharesToday's Volume Vs. Average119% Short Selling ATI? Sign up to receive the latest short interest report for ATI and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartATI Short Interest Over TimeATI Days to Cover Over TimeATI Percentage of Float Shorted Over Time ATI Tesla Short Interest History & Recent Changes ExportReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 10/15/20264,730,551 shares $894.59 million -0.2%3.5%3.93 $189.11 9/30/20264,739,175 shares $898.52 million +9.3%3.5%2.77 $189.59 9/15/20264,335,143 shares $807.63 million +17.2%3.2%2.79 $186.30 8/31/20263,700,619 shares $756.00 million +7.4%2.7%1.72 $204.29 8/14/20263,446,485 shares $788.40 million -6.5%2.6%2.02 $228.76 7/31/20263,685,690 shares $692.04 million -1.4%2.7%2.51 $187.77 7/15/20263,736,256 shares $723.85 million -3.3%2.8%2.84 $193.74 6/30/20263,865,546 shares $759.27 million +7.5%2.9%1.8 $196.42 6/15/20263,594,566 shares $702.36 million -7.1%2.7%1.97 $195.40 5/29/20263,870,806 shares $679.22 million +2.7%2.9%2.19 $175.47 Get the Latest News and Ratings for ATI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ATI and its competitors with MarketBeat's FREE daily newsletter. 5/15/20263,770,050 shares $581.73 million -1.0%2.8%2.08 $154.30 4/30/20263,809,733 shares $592.89 million +1.2%2.8%2.01 $155.63 4/15/20263,764,202 shares $590.81 million +0.2%2.8%2.13 $156.96 3/31/20263,757,540 shares $543.57 million +14.6%2.8%1.83 $144.66 3/13/20263,279,487 shares $465.48 million +24.4%2.4%1.43 $141.94 2/27/20262,636,739 shares $430.93 million -8.5%2.0%1.1 $163.43 2/13/20262,881,285 shares $413.90 million +1.3%2.1%1.04 $143.65 1/30/20262,843,419 shares $341.80 million +24.0%2.1%1.84 $120.21 1/15/20262,293,827 shares $287.85 million +2.9%1.7%1.65 $125.49 12/31/20252,230,362 shares $256.22 million -28.8%1.7%1.89 $114.88 12/15/20253,130,130 shares $340.33 million +2.7%2.3%1.87 $108.73 11/28/20253,046,784 shares $307.12 million +10.0%2.3%2.53 $100.80 11/14/20252,769,373 shares $275.06 million -1.0%2.0%2.37 $99.32 10/31/20252,797,156 shares $276.77 million -18.9%2.1%1.44 $98.95 10/15/20253,450,000 shares $287.75 million -5.2%2.5%1.9 $83.41 9/30/20253,640,000 shares $296.00 million -18.8%N/A2 $81.32 9/15/20254,480,000 shares $346.69 million +10.6%N/A2.4 $77.39 8/31/20254,050,000 shares $314.02 million +6.9%3.0%2 $77.54 8/15/20253,790,000 shares $274.70 million +15.2%N/A1.9 $72.48 7/31/20253,290,000 shares $253.81 million -22.6%2.4%1.6 $77.15 7/15/20254,250,000 shares $382.40 million -7.4%N/A2.2 $89.98 6/30/20254,590,000 shares $396.99 million +7.2%3.3%2.2 $86.49 6/15/20254,280,000 shares $363.59 million +14.8%3.1%2 $84.95 5/31/20253,730,000 shares $297.21 million +5.1%2.6%1.5 $79.68 5/15/20253,550,000 shares $266.18 million +46.7%2.5%1.5 $74.98 4/30/20252,420,000 shares $131.62 million -29.9%N/A1 $54.39 4/15/20253,450,000 shares $162.94 million +17.8%2.4%1.5 $47.23 3/31/20252,930,000 shares $152.51 million -25.5%2.1%1.4 $52.05 3/15/20253,930,000 shares $202.89 million +1.6%2.8%1.9 $51.63 2/28/20253,870,000 shares $225.41 million +13.8%2.7%2.4 $58.25The chip inside every Tesla (Ad)Every Tesla built since 2012 pays this small, overlooked supplier a fee for its technology. So does every Starlink dish and AI satellite Elon launches. When Nvidia tried to buy the company, Elon reportedly fought the deal. Now his filing for 1,000,000 satellites could expand its revenue stream sharply. Dylan believes the stock could see significant movement starting December 8th.See which overlooked supplier Elon has quietly paid since 2012 2/15/20253,400,000 shares $206.98 million +10.8%2.4%2.3 $60.88 1/31/20253,070,000 shares $175.49 million -19.4%N/A2.1 $57.16 1/15/20253,810,000 shares $217.40 million +13.4%N/A2.6 $57.06 12/31/20243,360,000 shares $184.93 million +14.3%N/A2.3 $55.04 12/15/20242,940,000 shares $166.11 million +14.4%N/A2 $56.50 11/30/20242,570,000 shares $154.64 million -0.8%N/A1.9 $60.17 11/15/20242,590,000 shares $145.45 million +5.7%N/A1.7 $56.16 10/31/20242,450,000 shares $129.12 million +27.6%N/A1.7 $52.70 10/15/20241,920,000 shares $119.96 million +2.1%1.6%1.5 $62.48 9/30/20241,880,000 shares $125.79 million -18.3%1.5%1.5 $66.91 9/15/20242,300,000 shares $142.07 million -54.6%1.9%1.5 $61.77 8/31/20245,060,000 shares $323.23 million -0.2%4.1%3 $63.88 8/15/20245,070,000 shares $326.20 million -2.5%4.1%3.3 $64.34 7/31/20245,200,000 shares $352.04 million +3.2%4.2%3.2 $67.70 7/15/20245,040,000 shares $299.02 million -26.4%4.1%3 $59.33 6/30/20246,850,000 shares $379.83 million -7.3%5.6%4.1 $55.45 6/15/20247,390,000 shares $394.26 million +7.9%6.0%5.3 $53.35 5/31/20246,850,000 shares $419.77 million +3.3%5.6%5.4 $61.28 5/15/20246,630,000 shares $408.41 million +2.5%5.4%5.3 $61.60 4/30/20246,470,000 shares $386.06 million +1.3%5.3%4.8 $59.67 4/15/20246,390,000 shares $326.56 million +0.2%5.1%4.8 $51.11 3/31/20246,380,000 shares $326.46 million -4.8%5.1%4.8 $51.17 3/15/20246,700,000 shares $330.85 million +0.6%5.3%5 $49.38 2/29/20246,660,000 shares $327.54 million +4.4%5.3%4.8 $49.18 2/15/20246,380,000 shares $297.37 million +21.8%5.1%4.3 $46.61 1/31/20245,240,000 shares $213.63 million -5.9%4.2%3.7 $40.77 1/15/20245,570,000 shares $239.01 million -0.5%4.4%4.2 $42.91 12/31/20235,600,000 shares $254.63 million -12.0%4.4%4.1 $45.47 12/15/20236,360,000 shares $271.70 million -14.1%5.0%4.7 $42.72 11/30/20237,400,000 shares $325.23 million -6.1%5.9%5.8 $43.95 11/15/20237,880,000 shares $353.73 million +6.9%6.3%7.4 $44.89 10/31/20237,370,000 shares $278.36 million +2.8%5.8%6.9 $37.77 10/15/20237,170,000 shares $268.73 million -1.8%5.6%7.3 $37.48 9/30/20237,300,000 shares $300.40 million -3.6%5.7%7.8 $41.15 9/15/20237,570,000 shares $337.24 million +2.7%6.0%7.8 $44.55 8/31/20237,370,000 shares $334.08 million -5.8%5.8%7.3 $45.33 8/15/20237,820,000 shares $336.42 million -0.6%6.2%7.2 $43.02 7/31/20237,870,000 shares $375.24 million -9.4%6.2%6.9 $47.68 7/15/20238,690,000 shares $396.70 million +0.7%6.9%7.4 $45.65 6/30/20238,630,000 shares $381.70 million -8.1%6.8%7.6 $44.23 6/15/20239,390,000 shares $371.75 million +3.1%7.4%8.6 $39.59 5/31/20239,110,000 shares $315.02 million -10.9%7.2%7.7 $34.58 5/15/202310,220,000 shares $371.80 million +3.4%8.1%8.2 $36.38 4/30/20239,880,000 shares $381.57 million +0.5%7.8%7.8 $38.62 4/15/20239,830,000 shares $370.98 million -2.3%7.7%7.6 $37.74 3/31/202310,060,000 shares $396.97 million No Change7.9%7.2 $39.46 3/15/202310,060,000 shares $365.78 million +1.0%7.9%7.1 $36.36 2/28/20239,960,000 shares $404.87 million +0.5%7.8%7.2 $40.65 2/15/20239,910,000 shares $398.98 million -23.2%N/A7.3 $40.26 1/31/202312,910,000 shares $469.79 million +3.6%N/A9.7 $36.39The "velvet rope" stock setups hiding from regular indicators (Ad)K.I.R.A. is a new trading engine built to flag market setups before they show up on standard charts. Former hedge fund trader Lance Ippolito says it identifies early moves and lets traders set their own risk level instead of guessing.Claim free access to K.I.R.A. and see it in action 1/15/202312,460,000 shares $441.58 million +3.5%N/A9.7 $35.44 12/30/202212,040,000 shares $359.51 million +0.7%N/A10.1 $29.86 12/15/202211,960,000 shares $348.28 million -6.1%N/A10.1 $29.12 11/30/202212,730,000 shares $388.39 million -7.5%N/A10.9 $30.51 11/15/202213,760,000 shares $399.32 million -4.8%N/A12 $29.02 10/31/202214,460,000 shares $430.33 million -2.4%N/A11.2 $29.76 10/15/202214,820,000 shares $400.14 million +2.4%N/A11.5 $27.00 9/30/202214,480,000 shares $385.31 million +2.5%N/A10.6 $26.61 9/15/202214,130,000 shares $432.24 million -0.8%N/A9.6 $30.59 8/31/202214,240,000 shares $426.20 million +5.5%N/A9.4 $29.93 8/15/202213,500,000 shares $432.68 million +0.8%N/A8.8 $32.05 7/31/202213,390,000 shares $333.28 million +0.8%11.0%8.1 $24.89 7/15/202213,290,000 shares $303.54 million +0.9%10.9%8 $22.84 6/30/202213,170,000 shares $299.09 million -24.5%10.8%7.7 $22.71 6/15/202217,440,000 shares $410.36 million +0.2%14.3%9.7 $23.53 5/31/202217,400,000 shares $478.50 million -0.9%14.2%9.5 $27.50 5/15/202217,560,000 shares $451.82 million +1.5%14.4%8.6 $25.73 4/30/202217,300,000 shares $470.21 million +3.4%14.1%8.3 $27.18 4/15/202216,730,000 shares $507.42 million -4.0%13.6%7 $30.33 3/31/202217,430,000 shares $467.82 million -0.9%14.2%7 $26.84 3/15/202217,580,000 shares $463.58 million -0.9%14.0%7.1 $26.37 2/28/202217,730,000 shares $456.37 million -5.0%14.1%7.5 $25.74 2/15/202218,670,000 shares $446.77 million +8.4%14.9%8.3 $23.93 1/31/202217,230,000 shares $315.14 million +15.2%13.8%8.2 $18.29 1/15/202214,960,000 shares $305.33 million +16.3%11.9%8 $20.41 12/31/202112,860,000 shares $204.86 million -6.1%10.3%7.7 $15.93 12/15/202113,690,000 shares $209.59 million +7.5%10.9%8.7 $15.31 11/30/202112,730,000 shares $181.28 million -4.1%10.1%8.2 $14.24 11/15/202113,280,000 shares $231.74 million -3.6%10.6%8.7 $17.45 10/29/202113,770,000 shares $221.70 million -0.8%11.0%9.1 $16.10 ATI Short Interest - Frequently Asked Questions What is ATI's current short interest? Short interest is the volume of ATI shares that have been sold short but have not yet been covered or closed out. As of October 15th, investors have sold 4,730,551 shares of ATI short. 3.51% of ATI's shares are currently sold short. Learn More on ATI's current short interest. What is a good short interest ratio for ATI? 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. ATI shares currently have a short interest ratio of 3.9. Learn More on ATI's short interest ratio. What is a good short interest percentage for ATI? 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. 3.51% of ATI's floating shares are currently sold short. Is ATI's short interest increasing or decreasing? ATI saw a decline in short interest in the month of October. As of October 15th, there was short interest totaling 4,730,551 shares, a decline of 0.2% from the previous total of 4,739,175 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 ATI's short interest compare to its competitors? 3.51% of ATI's shares are currently sold short. Here is how the short interest of companies compare to ATI: Cal-Maine Foods, Inc. (13.51%), Albemarle Corporation (10.43%), AdvanSix (2.33%), Axalta Coating Systems Ltd. (4.47%), Cabot Corporation (9.84%), Carpenter Technology Corporation (2.74%), Koppers Holdings Inc. (4.22%), The Mosaic Company (10.66%), Nutrien Ltd. (2.38%), PPG Industries, Inc. (3.01%), 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 ($71.77 billion), Invesco QQQ ($59.70 billion), iShares Russell 2000 ETF ($23.54 billion), Medtronic PLC ($13.33 billion), SPDR S&P Biotech ETF ($10.47 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($10.36 billion), Nebius Group N.V. ($8.98 billion), iShares 20+ Year Treasury Bond ETF ($8.92 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($8.10 billion), and iShares Semiconductor ETF ($7.74 billion). View all of the most shorted stocks. What does it mean to sell short ATI stock? Short selling ATI is an investing strategy that aims to generate trading profit from ATI as its price is falling. ATI shares are trading down $0.72 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 ATI? A short squeeze for ATI 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 ATI, which in turn drives the price of the stock up even further. How often is ATI'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 ATI, twice per month. The most recent reporting period available is October, 15 2026. What do ATI's short interest metrics mean? Understanding short interest metrics can help you assess how traders are positioning around a stock like ATI:Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity. More Short Interest Resources from MarketBeat Related Companies CALM Short Interest Data ALB Short Interest Data ASIX Short Interest Data AXTA Short Interest Data CBT Short Interest Data CRS Short Interest Data KOP Short Interest Data MOS Short Interest Data NTR Short Interest Data PPG Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates Short interest data for NYSE:ATI is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/26/2026. FINRA publishes updated short interest twice a month. From Our PartnersFinancial legend: “This is bad, really bad...”Dr. Martin D. 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