Century Aluminum (CENX) Short Interest Ratio & Short Volume $19.64 -0.16 (-0.81%) As of 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Century Aluminum Short Interest DataCentury Aluminum (CENX) has a short interest of 4.73 million shares, representing 9.25% of the float (the number of shares available for trading by the public). This marks a 0.64% increase in short interest from the previous month. The short interest ratio (days to cover) is 4.3, indicating that it would take 4.3 days of the average trading volume of 1.08 million shares to cover all short positions.Current Short Interest4,730,000 sharesPrevious Short Interest4,700,000 sharesChange Vs. Previous Month+0.64%Dollar Volume Sold Short$86.18 millionShort Interest Ratio4.3 Days to CoverLast Record DateDecember 31, 2024Outstanding Shares92,800,000 sharesFloat Size51,110,000 sharesShort Percent of Float9.25%Today's Trading Volume702,965 sharesAverage Trading Volume1,082,958 sharesToday's Volume Vs. Average65% Short Selling Century Aluminum? Sign up to receive the latest short interest report for Century Aluminum and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCENX Short Interest Over TimeCENX Days to Cover Over TimeCENX Percentage of Float Shorted Over Time Century Aluminum Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 12/31/20244,730,000 shares $86.18 million +0.6%9.3%4.3 $18.22 12/15/20244,700,000 shares $98.09 million +11.1%9.1%4.4 $20.87 11/30/20244,230,000 shares $96.57 million -11.9%8.2%3.9 $22.83 11/15/20244,800,000 shares $108.58 million +1.5%9.3%4.4 $22.62 10/31/20244,730,000 shares $83.48 million -13.7%9.2%4.4 $17.65 10/15/20245,480,000 shares $95.30 million -4.7%10.6%5.1 $17.39 9/30/20245,750,000 shares $93.32 million +2.9%11.2%4.7 $16.23 9/15/20245,590,000 shares $76.25 million -4.0%10.9%4.2 $13.64 8/31/20245,820,000 shares $83.58 million +10.0%11.3%4.2 $14.36 8/15/20245,290,000 shares $71.73 million +11.4%10.3%3.8 $13.56 Get the Latest News and Ratings for CENX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Century Aluminum and its competitors with MarketBeat's FREE daily newsletter. 7/31/20244,750,000 shares $71.77 million -16.1%9.2%3.3 $15.11 7/15/20245,660,000 shares $109.24 million +6.0%11.0%4 $19.30 6/30/20245,340,000 shares $89.45 million -28.5%10.4%3.8 $16.75 6/15/20247,470,000 shares $113.84 million +9.5%14.5%5.2 $15.24 5/31/20246,820,000 shares $125.01 million -8.3%13.3%4.9 $18.33 5/15/20247,440,000 shares $130.72 million -3.9%14.5%5.2 $17.57 4/30/20247,740,000 shares $134.29 million +7.4%15.1%5.3 $17.35 4/15/20247,210,000 shares $127.98 million -1.0%14.1%5.1 $17.75 3/31/20247,280,000 shares $112.04 million +3.6%14.3%5.1 $15.39 3/15/20247,030,000 shares $84.78 million +2.3%13.8%4.9 $12.06 2/29/20246,870,000 shares $71.93 million -9.8%13.4%4.3 $10.47 2/15/20247,620,000 shares $81.38 million -7.6%14.9%4.7 $10.68 1/31/20248,250,000 shares $91.99 million -9.4%16.1%5.2 $11.15 1/15/20249,110,000 shares $99.21 million -8.7%17.8%5.7 $10.89 12/31/20239,980,000 shares $121.16 million -8.9%19.5%6.6 $12.14 12/15/202310,950,000 shares $106.65 million +5.8%21.1%7.9 $9.74 11/30/202310,350,000 shares $81.35 million +4.6%20.0%8.8 $7.86 11/15/20239,900,000 shares $74.94 million -1.2%19.1%8.7 $7.57 10/31/202310,020,000 shares $66.23 million +1.8%19.4%9 $6.61 10/15/20239,840,000 shares $64.06 million +4.7%19.0%9.5 $6.51 9/30/20239,400,000 shares $67.59 million +26.3%18.2%8.3 $7.19 9/15/20237,440,000 shares $55.95 million +12.2%9.4%6.6 $7.52 8/31/20236,630,000 shares $49.33 million -3.9%8.4%5.5 $7.44 8/15/20236,900,000 shares $53.82 million +9.4%8.7%5.8 $7.80 7/31/20236,310,000 shares $58.68 million -6.5%8.0%5.1 $9.30 7/15/20236,750,000 shares $58.93 million +5.0%8.6%5.2 $8.73 6/30/20236,430,000 shares $56.07 million -12.2%8.2%5.1 $8.72 6/15/20237,320,000 shares $71.88 million -5.2%9.3%5.8 $9.82 5/31/20237,720,000 shares $60.52 million -1.3%9.8%5.7 $7.84 5/15/20237,820,000 shares $59.74 million +7.9%9.9%5.2 $7.64Elon’s #1 AI Stock” SET TO SOAR (Ad)Forget ChatGPT! Because Elon Musk's AI promises to be 100x more powerful.Get all the details here >>> 4/30/20237,250,000 shares $62.28 million +14.4%9.2%4.5 $8.59 4/15/20236,340,000 shares $59.91 million -3.9%8.1%3.6 $9.45 3/31/20236,600,000 shares $66 million +5.8%8.4%3.6 $10.00 3/15/20236,240,000 shares $56.53 million +6.3%7.9%3.2 $9.06 2/28/20235,870,000 shares $70.85 million +3.2%7.5%3 $12.07 2/15/20235,690,000 shares $61.28 million +4.0%7.3%3 $10.77 1/31/20235,470,000 shares $61.48 million +1.5%7.0%2.7 $11.24 1/15/20235,390,000 shares $53.95 million +8.5%6.9%2.8 $10.01 12/30/20224,970,000 shares $40.65 million -15.2%6.4%2.4 $8.18 12/15/20225,860,000 shares $43.07 million +12.9%7.5%2.6 $7.35 11/30/20225,190,000 shares $46.76 million -15.9%10.2%2.4 $9.01 11/15/20226,170,000 shares $56.58 million -10.7%12.1%2.8 $9.17 10/31/20226,910,000 shares $49.82 million +15.9%13.5%3.2 $7.21 10/15/20225,960,000 shares $34.33 million +5.3%11.8%2.9 $5.76 9/30/20225,660,000 shares $29.88 million +7.4%11.2%2.9 $5.28 9/15/20225,270,000 shares $39.00 million -2.2%10.4%2.6 $7.40 8/31/20225,390,000 shares $41.61 million -4.9%10.7%2.4 $7.72 8/15/20225,670,000 shares $50.41 million -19.7%11.2%2.4 $8.89 7/31/20227,060,000 shares $55.70 million -4.9%14.0%2.9 $7.89 7/15/20227,420,000 shares $53.28 million +4.5%14.7%2.9 $7.18 6/30/20227,100,000 shares $52.33 million +20.8%14.1%2.8 $7.37 6/15/20225,880,000 shares $62.27 million +3.3%11.7%2.4 $10.59 5/31/20225,690,000 shares $67.14 million +18.1%11.3%2.6 $11.80 5/15/20224,820,000 shares $61.65 million +15.9%9.6%2.1 $12.79 4/30/20224,160,000 shares $70.18 million -9.0%8.3%1.9 $16.87 4/15/20224,570,000 shares $125.26 million -9.9%9.1%2.2 $27.41 3/31/20225,070,000 shares $133.39 million -28.4%10.2%2.7 $26.31 3/15/20227,080,000 shares $159.94 million +8.9%14.2%3.9 $22.59 2/28/20226,500,000 shares $153.53 million +9.2%13.0%3.9 $23.62 2/15/20225,950,000 shares $121.08 million +21.4%12.1%4.3 $20.35 1/31/20224,900,000 shares $75.17 million +16.4%10.0%3.8 $15.34 1/15/20224,210,000 shares $71.06 million +4.2%8.6%3.2 $16.88 12/31/20214,040,000 shares $66.90 million -1.2%8.2%3 $16.56 12/15/20214,090,000 shares $54.36 million -2.4%8.2%2.9 $13.29 11/30/20214,190,000 shares $55.43 million +2.4%8.4%2.8 $13.23 11/15/20214,090,000 shares $62.74 million -9.1%8.2%2.6 $15.34 10/29/20214,500,000 shares $59.45 million +0.7%9.0%2.9 $13.21 10/15/20214,470,000 shares $77.11 million -2.6%9.0%2.8 $17.25 9/30/20214,590,000 shares $61.74 million -20.2%9.2%2.9 $13.45 9/15/20215,750,000 shares $77.97 million -0.4%11.5%3.8 $13.56 8/31/20215,770,000 shares $73.97 million +11.0%11.6%3.7 $12.82 8/13/20215,200,000 shares $63.86 million -7.5%10.4%3.2 $12.28 7/30/20215,620,000 shares $81.83 million -3.8%11.3%3.1 $14.56 7/15/20215,840,000 shares $69.55 million -1.0%11.7%3.2 $11.91 6/30/20215,900,000 shares $76.05 million +35.0%11.8%3.2 $12.89 6/15/20214,370,000 shares $58.65 million -3.7%8.7%2.3 $13.42 5/28/20214,540,000 shares $61.79 million +5.6%9.1%2.5 $13.61 5/14/20214,300,000 shares $64.33 million +21.8%8.6%2.4 $14.96 4/30/20213,530,000 shares $56.52 million -3.3%7.1%2.1 $16.01 4/15/20213,650,000 shares $58.77 million +70.6%7.3%2.5 $16.10Elon’s #1 AI Stock” SET TO SOAR (Ad)Forget ChatGPT! Because Elon Musk's AI promises to be 100x more powerful.Get all the details here >>> 3/31/20212,140,000 shares $37.02 million -26.5%4.3%1.6 $17.30 3/15/20212,910,000 shares $52.35 million -6.1%5.8%2.3 $17.99 2/26/20213,100,000 shares $45.91 million +2.0%6.2%2.7 $14.81 2/12/20213,040,000 shares $44.87 million +4.1%6.1%2.9 $14.76 1/29/20212,920,000 shares $30.05 million +6.2%5.9%2.9 $10.29 1/15/20212,750,000 shares $37.54 million -1.8%5.6%2.9 $13.65 12/31/20202,800,000 shares $30.06 million +8.5%5.7%2.9 $10.74 12/15/20202,580,000 shares $27.66 million +13.2%5.2%2.7 $10.72 11/30/20202,280,000 shares $23.71 million -8.4%4.6%2.1 $10.40 11/15/20202,490,000 shares $22.11 million -1.2%5.0%2.3 $8.88 10/30/20202,520,000 shares $17.67 million -12.2%5.1%2.5 $7.01 10/15/20202,870,000 shares $22.90 million -27.3%5.8%2.4 $7.98 9/30/20203,950,000 shares $28.12 million +20.8%7.9%3.3 $7.12 9/15/20203,270,000 shares $30.51 million +22.5%6.6%2.6 $9.33 8/31/20202,670,000 shares $26.35 million -5.0%5.4%2.3 $9.87 8/14/20202,810,000 shares $27.93 million +1.1%5.6%2.2 $9.94 7/31/20202,780,000 shares $24.21 million -11.8%5.6%2.1 $8.71 7/15/20203,150,000 shares $23.50 million -5.1%6.3%2.5 $7.46 6/30/20203,320,000 shares $23.07 million +7.1%6.7%2.6 $6.95 6/15/20203,100,000 shares $20.74 million +1.6%6.2%2.3 $6.69 5/29/20203,050,000 shares $17.96 million -18.7%6.1%2 $5.89 5/15/20203,750,000 shares $16.39 million -6.3%7.5%2.4 $4.37 4/30/20204,000,000 shares $17.40 million -17.4%8.0%2.3 $4.35 4/15/20204,840,000 shares $19.12 million +1.9%9.8%2.7 $3.95 3/31/20204,750,000 shares $19.29 million -27.5%9.6%2.5 $4.06 3/13/20206,554,200 shares $27.00 million -19.9%13.2%3.1 $4.12 2/28/20208,180,000 shares $25.93 million -9.1%16.4%4.9 $3.17 2/14/20209,000,000 shares $42.75 million +2.4%18.1%5.9 $4.75 1/31/20208,790,000 shares $50.37 million +4.5%17.8%6.4 $5.73 CENX Short Interest - Frequently Asked Questions What is Century Aluminum's current short interest? Short interest is the volume of Century Aluminum shares that have been sold short but have not yet been covered or closed out. As of December 31st, traders have sold 4,730,000 shares of CENX short. 9.25% of Century Aluminum's shares are currently sold short. Learn More on Century Aluminum's current short interest. What is a good short interest ratio for Century Aluminum? 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. CENX shares currently have a short interest ratio of 4.0. Learn More on Century Aluminum's short interest ratio. Which institutional investors are shorting Century Aluminum? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Century Aluminum: Jane Street Group LLC, Wolverine Trading LLC, Walleye Capital LLC, PEAK6 Investments LLC, and Bank of Montreal Can. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Century Aluminum? 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. 9.25% of Century Aluminum's floating shares are currently sold short. Is Century Aluminum's short interest increasing or decreasing? Century Aluminum saw a increase in short interest in December. As of December 31st, there was short interest totaling 4,730,000 shares, an increase of 0.6% from the previous total of 4,700,000 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 Century Aluminum's float size? Century Aluminum currently has issued a total of 92,800,000 shares. Some of Century Aluminum'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. Century Aluminum currently has a public float of 51,110,000 shares. How does Century Aluminum's short interest compare to its competitors? 9.25% of Century Aluminum's shares are currently sold short. Here is how the short interest of companies in the sector of "industrial products" compare to Century Aluminum: Kaiser Aluminum Co. (2.54%), Alcoa Co. (3.19%), The Middleby Co. (5.07%), AGCO Co. (8.00%), ESAB Co. (1.23%), Casella Waste Systems, Inc. (3.55%), Valmont Industries, Inc. (1.18%), ADT Inc. (4.52%), Zurn Elkay Water Solutions Co. (5.08%), SiteOne Landscape Supply, Inc. (4.55%), 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 Co. ($5.83 billion), Charter Communications, Inc. ($3.77 billion), Reddit, Inc. ($2.98 billion), The Kroger Co. ($2.97 billion), International Paper ($2.64 billion), SoFi Technologies, Inc. ($1.99 billion), Rivian Automotive, Inc. ($1.93 billion), Onsemi ($1.81 billion), SoundHound AI, Inc. ($1.59 billion), and Moderna, Inc. ($1.57 billion). View all of the most shorted stocks. What does it mean to sell short Century Aluminum stock? Short selling CENX is an investing strategy that aims to generate trading profit from Century Aluminum as its price is falling. CENX shares are trading down $0.48 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 Century Aluminum? A short squeeze for Century Aluminum 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 CENX, which in turn drives the price of the stock up even further. How often is Century Aluminum'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 CENX, twice per month. The most recent reporting period available is December, 31 2024. More Short Interest Resources from MarketBeat Related Companies Kaiser Aluminum Short Squeeze Alcoa Short Squeeze Middleby Short Squeeze AGCO Short Squeeze ESAB Short Squeeze Casella Waste Systems Short Squeeze Valmont Industries Short Squeeze ADT Short Squeeze Zurn Elkay Water Solutions Short Squeeze SiteOne Landscape Supply Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:CENX) was last updated on 1/24/2025 by MarketBeat.com Staff From Our PartnersDo this Before Elon’s Reveal on January 29thElon’s newest tech could pay you an extra $30,000 a year — while you sleep. It’s smaller than a quarter but...Brownstone Research | SponsoredVladimir Lenin was right…The Magnificent 7 could be in for a world of pain… And the insiders know it. 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