Rocket Lab (RKLB) Short Interest Ratio & Short Volume $66.42 +1.11 (+1.70%) Closing price 10/9/2025 04:00 PM EasternExtended Trading$67.35 +0.93 (+1.40%) As of 04:50 AM 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 InterestTrendsBuy This Stock Rocket Lab Short Interest DataRocket Lab (RKLB) has a short interest of 60.31 million shares, representing 14.24% of the float (the number of shares available for trading by the public). This marks a 1.26% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.6, indicating that it would take 2.6 days of the average trading volume of 27.33 million shares to cover all short positions.Current Short Interest60,310,000 sharesPrevious Short Interest59,560,000 sharesChange Vs. Previous Month+1.26%Dollar Volume Sold Short$3.26 billionShort Interest Ratio2.6 Days to CoverLast Record DateSeptember 15, 2025Outstanding Shares483,960,000 sharesFloat Size423,670,000 sharesShort Percent of Float14.24%Today's Trading Volume25,791,783 sharesAverage Trading Volume27,334,294 sharesToday's Volume Vs. Average94% Short Selling Rocket Lab? Sign up to receive the latest short interest report for Rocket Lab and its competitors with MarketBeat's FREE newsletter. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartRKLB Short Interest Over TimeRKLB Days to Cover Over TimeRKLB Percentage of Float Shorted Over Time Rocket Lab Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/15/202560,310,000 shares $3.26 billion +1.3%14.2%2.6 $54.04 8/31/202559,560,000 shares $2.89 billion +4.7%14.2%2.6 $48.60 8/15/202556,880,000 shares $2.52 billion +7.2%12.8%2.4 $44.27 7/31/202553,080,000 shares $2.44 billion -5.1%11.8%2.3 $45.92 7/15/202555,920,000 shares $2.49 billion +2.8%12.6%2.5 $44.60 6/30/202554,420,000 shares $1.95 billion -5.1%11.9%2.6 $35.77 6/15/202557,350,000 shares $1.46 billion -0.1%12.8%3 $25.41 5/31/202557,420,000 shares $1.53 billion -9.8%15.2%3.3 $26.65 5/15/202563,650,000 shares $1.61 billion +6.6%16.9%3.7 $25.22 4/30/202559,710,000 shares $1.30 billion +0.8%15.8%3.5 $21.79 Get the Latest News and Ratings for RKLB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Rocket Lab and its competitors with MarketBeat's FREE daily newsletter. 4/15/202559,260,000 shares $1.25 billion -5.9%16.0%3.3 $21.07 3/31/202562,950,000 shares $1.13 billion +11.8%17.0%3.3 $17.88 3/15/202556,320,000 shares $1.06 billion -0.4%15.2%3 $18.81 2/28/202556,530,000 shares $1.16 billion +5.2%15.2%2.9 $20.44 2/15/202553,720,000 shares $1.51 billion +3.7%13.1%2.6 $28.02 1/31/202551,810,000 shares $1.51 billion -4.9%13.7%2.2 $29.05 1/15/202554,450,000 shares $1.35 billion +2.1%14.6%2.5 $24.87 12/31/202453,330,000 shares $1.36 billion +5.0%14.5%2.6 $25.47 12/15/202450,780,000 shares $1.24 billion +3.0%13.8%2.5 $24.42 11/30/202449,280,000 shares $1.34 billion -8.3%13.7%2.5 $27.28 11/15/202453,740,000 shares $1.02 billion -8.8%15.1%3 $19.00 10/31/202458,950,000 shares $630.77 million -5.1%19.1%3.9 $10.70 10/15/202462,130,000 shares $617.57 million +1.4%20.1%4.5 $9.94 9/30/202461,250,000 shares $595.96 million +5.3%19.8%4.7 $9.73 9/15/202458,180,000 shares $434.02 million +2.1%18.7%5.2 $7.46 8/31/202456,970,000 shares $357.20 million +1.1%18.4%5.3 $6.27 8/15/202456,350,000 shares $328.52 million +6.5%18.4%5.7 $5.83 7/31/202452,890,000 shares $277.14 million -6.5%17.6%7.3 $5.24 7/15/202456,590,000 shares $323.69 million +3.8%18.8%7.7 $5.72 6/30/202454,510,000 shares $261.65 million -3.8%18.1%7.4 $4.80 6/15/202456,650,000 shares $248.69 million +0.8%18.8%7.4 $4.39 5/31/202456,220,000 shares $245.68 million -4.0%18.8%7.6 $4.37 5/15/202458,560,000 shares $254.15 million -2.5%19.6%7.5 $4.34 4/30/202460,040,000 shares $225.75 million +3.5%20.8%7.6 $3.76 4/15/202458,000,000 shares $204.74 million +4.3%20.3%6.5 $3.53 3/31/202455,610,000 shares $228.56 million +9.7%19.6%6.4 $4.11 3/15/202450,700,000 shares $208.88 million +6.8%17.9%5.2 $4.12 2/29/202447,490,000 shares $217.74 million +2.8%16.4%5.2 $4.59 2/15/202446,200,000 shares $225.92 million +105.9%16.1%5.4 $4.89 1/31/202422,440,000 shares $108.83 million -2.9%7.6%2.8 $4.85 1/15/202423,100,000 shares $119.43 million +4.1%7.9%4 $5.17 12/31/202322,190,000 shares $122.71 million +5.7%7.6%3.9 $5.53 12/15/202321,000,000 shares $96.81 million +5.1%7.1%4.1 $4.61 11/30/202319,980,000 shares $87.51 million -2.5%6.8%4.7 $4.38 11/15/202320,500,000 shares $90.20 million -7.0%7.0%4.9 $4.40 10/31/202322,040,000 shares $93.23 million -2.7%7.9%5.8 $4.23 10/15/202322,650,000 shares $97.17 million -2.8%8.1%5.5 $4.29 9/30/202323,290,000 shares $102.01 million +13.0%8.3%4.9 $4.38 9/15/202320,620,000 shares $105.57 million +7.3%7.4%4.2 $5.12 8/31/202319,210,000 shares $121.22 million -4.2%7.0%4.3 $6.31 8/15/202320,050,000 shares $122.10 million +3.1%7.3%4.3 $6.09 7/31/202319,440,000 shares $143.27 million -16.3%7.4%4 $7.37 7/15/202323,220,000 shares $146.75 million +1.0%8.8%5.2 $6.32 6/30/202322,990,000 shares $137.94 million -5.1%8.8%6 $6.00 6/15/202324,220,000 shares $137.57 million +9.0%9.2%6.6 $5.68 5/31/202322,220,000 shares $101.77 million -13.6%8.5%6.7 $4.58 5/15/202325,710,000 shares $111.58 million +4.4%9.8%7.7 $4.34 4/30/202324,630,000 shares $96.55 million +1.5%9.4%7.7 $3.92 4/15/202324,260,000 shares $97.53 million -1.0%9.3%7.1 $4.02 3/31/202324,500,000 shares $98.98 million -1.0%9.4%6.7 $4.04 3/15/202324,750,000 shares $97.02 million +12.6%9.5%6.7 $3.92 2/28/202321,990,000 shares $98.96 million -5.3%8.6%6 $4.50 2/15/202323,220,000 shares $119.82 million +0.5%9.0%6.4 $5.16 1/31/202323,110,000 shares $114.86 million +14.4%9.0%6.2 $4.97 1/15/202320,210,000 shares $100.44 million -13.6%7.9%5.9 $4.97 12/30/202223,390,000 shares $88.18 million +21.3%9.1%7.4 $3.77 12/15/202219,280,000 shares $77.70 million +0.1%7.7%5.9 $4.03 11/30/202219,260,000 shares $80.70 million -9.4%7.8%5.4 $4.19 11/15/202221,250,000 shares $110.93 million +10.0%8.6%5.8 $5.22 10/31/202219,320,000 shares $98.34 million +3.2%7.8%4.9 $5.09 10/15/202218,720,000 shares $73.94 million -0.5%7.6%4.6 $3.95 9/30/202218,810,000 shares $76.56 million +12.5%7.6%4.8 $4.07 9/15/202216,720,000 shares $85.27 million +3.5%6.8%3.7 $5.10 8/31/202216,150,000 shares $88.83 million -1.8%6.6%3.7 $5.50 8/15/202216,450,000 shares $108.73 million -3.9%6.8%3.5 $6.61 7/31/202217,110,000 shares $79.90 million -2.7%7.5%3.7 $4.67 7/15/202217,590,000 shares $69.48 million +4.3%7.7%3.8 $3.95 6/30/202216,870,000 shares $63.94 million +39.5%7.3%3.5 $3.79 6/15/202212,090,000 shares $52.35 million -12.8%5.3%2.5 $4.33 5/31/202213,870,000 shares $66.02 million +3.2%6.1%2.8 $4.76 5/15/202213,440,000 shares $78.76 million -2.8%6.5%2.7 $5.86 4/30/202213,820,000 shares $101.99 million -4.2%6.8%3.2 $7.38 4/15/202214,420,000 shares $121.42 million +3.2%7.1%3.3 $8.42 3/31/202213,970,000 shares $112.46 million +56.1%7.2%3.3 $8.05 3/15/20228,950,000 shares $70.88 million +2.2%4.8%2.3 $7.92 2/28/20228,760,000 shares $83.57 million +29.0%5.1%2.7 $9.54 2/15/20226,790,000 shares $68.99 million +7.6%7.5%2.1 $10.16 1/31/20226,310,000 shares $57.04 million +8.6%4.0%1.9 $9.04 1/15/20225,810,000 shares $60.54 million -12.8%3.7%1.8 $10.42 12/31/20216,660,000 shares $81.78 million No Change4.2%1.9 $12.28 RKLB Short Interest - Frequently Asked Questions What is Rocket Lab's current short interest? Short interest is the volume of Rocket Lab shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 60,310,000 shares of RKLB short. 14.24% of Rocket Lab's shares are currently sold short. Learn More on Rocket Lab's current short interest. What is a good short interest ratio for Rocket Lab? 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. RKLB shares currently have a short interest ratio of 3.0. Learn More on Rocket Lab's short interest ratio. Which institutional investors are shorting Rocket Lab? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Rocket Lab: Venture Visionary Partners LLC, Wolverine Trading LLC, Sculptor Capital LP, Group One Trading LLC, Cubist Systematic Strategies LLC, Bank of America Corp DE, Jane Street Group LLC, Raymond James Financial Inc., Squarepoint Ops LLC, Walleye Capital LLC, Walleye Trading LLC, HBK Investments L P, Capital Fund Management S.A., Wolverine Asset Management LLC, Twin Tree Management LP, NorthRock Partners LLC, IMC Chicago LLC, and Venture Visionary Partners LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Rocket Lab? 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. 14.24% of Rocket Lab's floating shares are currently sold short. Is Rocket Lab's short interest increasing or decreasing? Rocket Lab saw a increase in short interest during the month of September. As of September 15th, there was short interest totaling 60,310,000 shares, an increase of 1.3% from the previous total of 59,560,000 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 Rocket Lab's float size? Rocket Lab currently has issued a total of 483,961,000 shares. Some of Rocket Lab'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. Rocket Lab currently has a public float of 423,670,000 shares. How does Rocket Lab's short interest compare to its competitors? 14.24% of Rocket Lab's shares are currently sold short. Here is how the short interest of companies compare to Rocket Lab: United Parcel Service, Inc. (2.52%), FedEx Corporation (2.02%), Expeditors International of Washington, Inc. (4.40%), C.H. Robinson Worldwide, Inc. (6.22%), XPO, Inc. (8.11%), Hub Group, Inc. (1.91%), Forward Air Corporation (17.24%), Park-Ohio Holdings Corp. (1.01%), Transdigm Group Incorporated (1.86%), Axon Enterprise, Inc (2.20%), 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 Rocket Lab stock? Short selling RKLB is an investing strategy that aims to generate trading profit from Rocket Lab as its price is falling. RKLB shares are trading up $1.11 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 Rocket Lab? A short squeeze for Rocket Lab 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 RKLB, which in turn drives the price of the stock up even further. How often is Rocket Lab'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 RKLB, twice per month. The most recent reporting period available is September, 15 2025. More Short Interest Resources from MarketBeat Related Companies UPS Short Interest Data FDX Short Interest Data EXPD Short Interest Data CHRW Short Interest Data XPO Short Interest Data HUBG Short Interest Data FWRD Short Interest Data PKOH Short Interest Data TDG Short Interest Data AXON Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:RKLB) was last updated on 10/10/2025 by MarketBeat.com Staff From Our Partners"I'm risking my reputation on this"The Fed rate cut truth they don't want you to know The Fed's 25 basis point cut isn't just monetary policy…...Crypto 101 Media | SponsoredREVEALED: Something Big Happening Behind White House DoorsWhat I just learned about what’s unfolding in the White House is truly stunning… And you need to see it for...Paradigm Press | SponsoredElon callingElon Musk says November 6 could "affect the future of the world" Get ready for the biggest pivot in corpora...Altimetry | Sponsored1 Hour Once A DayMy top income trading expert, Dave Aquino, just released a 1-hour trading strategy designed specifically to he...Base Camp Trading | SponsoredBuy UBER immediatelyBULLISH: It's time to buy this 'hidden' AI stock An award-winning stock-rating system has turned BULLISH on...Chaikin Analytics | SponsoredURGENT: The Market's 3 Red Flags Are FlashingHere’s the uncomfortable truth: The smartest investors in the world are already preparing for a crash befor...StockEarnings | SponsoredClaim Your Share of $5.39 BILLION in AI Equity ChecksThe U.S. government just took advantage of Public Law 81-774 to crack down on AI companies... 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