Impinj (PI) Short Interest Ratio & Short Volume $92.13 +2.44 (+2.72%) Closing price 04/30/2025 04:00 PM EasternExtended Trading$94.00 +1.87 (+2.03%) As of 08:03 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 InterestSustainabilityTrendsBuy This Stock Impinj Short Interest DataImpinj (PI) has a short interest of 3.25 million shares, representing 23.24% of the float (the number of shares available for trading by the public). This marks a -10.47% decrease in short interest from the previous month. The short interest ratio (days to cover) is 4.2, indicating that it would take 4.2 days of the average trading volume of 584,543 shares to cover all short positions.Current Short Interest3,250,000 sharesPrevious Short Interest3,630,000 sharesChange Vs. Previous Month-10.47%Dollar Volume Sold Short$215.74 millionShort Interest Ratio4.2 Days to CoverLast Record DateApril 15, 2025Outstanding Shares28,983,000 sharesShort Percent of Float23.24%Today's Trading Volume768,755 sharesAverage Trading Volume584,543 sharesToday's Volume Vs. Average132% Short Selling Impinj? Sign up to receive the latest short interest report for Impinj and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartPI Short Interest Over TimePI Days to Cover Over TimePI Percentage of Float Shorted Over Time Impinj Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/15/20253,250,000 shares $215.74 million -10.5%23.2%4.2 $66.38 3/31/20253,630,000 shares $329.24 million +0.8%26.0%5 $90.70 3/15/20253,600,000 shares $325.22 million +2.3%25.7%5.5 $90.34 2/28/20253,520,000 shares $340.24 million -1.7%25.2%5.1 $96.66 2/15/20253,580,000 shares $371.68 million -20.3%25.6%5.5 $103.82 1/31/20254,490,000 shares $569.74 million +6.2%N/A6.7 $126.89 1/15/20254,230,000 shares $577.48 million +1.0%N/A6.9 $136.52 12/31/20244,190,000 shares $608.64 million +10.9%N/A7.7 $145.26 12/15/20243,780,000 shares $570.70 million +13.9%N/A6.9 $150.98 11/30/20243,320,000 shares $638.14 million +3.1%N/A5.5 $192.21 Get the Latest News and Ratings for PI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Impinj and its competitors with MarketBeat's FREE daily newsletter. 11/15/20243,220,000 shares $568.36 million +2.6%N/A5.6 $176.51 10/31/20243,140,000 shares $596.57 million -19.5%N/A5.8 $189.99 10/15/20243,900,000 shares $909.68 million +2.1%N/A7.2 $233.25 9/30/20243,820,000 shares $827.11 million +24.4%N/A7.3 $216.52 9/15/20243,070,000 shares $570.77 million +12.0%N/A6.2 $185.92 8/31/20242,740,000 shares $460.59 million -2.8%N/A6.8 $168.10 8/15/20242,820,000 shares $458.48 million +5.6%N/A6.7 $162.58 7/31/20242,670,000 shares $425.30 million +1.5%N/A5.7 $159.29 7/15/20242,630,000 shares $463.17 million -11.2%N/A5.2 $176.11 6/30/20242,960,000 shares $464.04 million -2.0%N/A6.5 $156.77 6/15/20243,020,000 shares $453 million -3.2%N/A6.7 $150.00 5/31/20243,120,000 shares $510.65 million -4.9%N/A6.8 $163.67 5/15/20243,280,000 shares $573.57 million -6.8%N/A7.6 $174.87 4/30/20243,520,000 shares $561.02 million +6.7%N/A7.7 $159.38 4/15/20243,300,000 shares $391.05 million -0.9%N/A9 $118.50 3/31/20243,330,000 shares $427.61 million +2.2%N/A8.6 $128.41 3/15/20243,260,000 shares $400.65 million -0.3%N/A8.3 $122.90 2/29/20243,270,000 shares $357.15 million +0.6%N/A8.1 $109.22 2/15/20243,250,000 shares $346.91 million -14.5%N/A8.1 $106.74 1/31/20243,800,000 shares $368.52 million -0.3%N/A9.6 $96.98 1/15/20243,810,000 shares $304.04 million -0.3%N/A8.3 $79.80 12/31/20233,820,000 shares $343.91 million -5.7%N/A8.7 $90.03 12/15/20234,050,000 shares $360.13 million +1.0%N/A8.9 $88.92 11/30/20234,010,000 shares $335.20 million +2.6%N/A8.4 $83.59 11/15/20233,910,000 shares $308.93 million +2.6%N/A7.4 $79.01 10/31/20233,810,000 shares $246.16 million +20.6%N/A6.7 $64.61 10/15/20233,160,000 shares $166.50 million -0.9%N/A4.9 $52.69 9/30/20233,190,000 shares $175.55 million +4.3%N/A5 $55.03 9/15/20233,060,000 shares $195.56 million +9.3%N/A4.7 $63.91 8/31/20232,800,000 shares $186.40 million -1.8%N/A4 $66.57Trump announcement boosts “next Bitcoin” (Ad)President Trump just made his first big crypto move ... Announcing the creation of a national strategic reserve for Bitcoin and Ethereum. But there's something else going on here …To learn more about this next Bitcoin — click here before another proclamation by Trump sends the pr 8/15/20232,850,000 shares $174.68 million -10.4%N/A4.3 $61.29 7/31/20233,180,000 shares $211.85 million -3.9%N/A5 $66.62 7/15/20233,310,000 shares $286.32 million -8.1%N/A4.9 $86.50 6/30/20233,600,000 shares $322.74 million +4.7%N/A5.3 $89.65 6/15/20233,440,000 shares $333.51 million -7.0%N/A5.2 $96.95 5/31/20233,700,000 shares $378.66 million +20.5%N/A6.4 $102.34 5/15/20233,070,000 shares $290.88 million -11.3%N/A5.3 $94.75 4/30/20233,460,000 shares $305.90 million +4.2%N/A5.7 $88.41 4/15/20233,320,000 shares $456.37 million -7.3%N/A7.3 $137.46 3/31/20233,580,000 shares $485.16 million -0.6%N/A7.8 $135.52 3/15/20233,600,000 shares $453.82 million +11.8%N/A7.9 $126.06 2/28/20233,220,000 shares $427.04 million +5.9%N/A7 $132.62 2/15/20233,040,000 shares $406.45 million +4.8%N/A6.4 $133.70 1/31/20232,900,000 shares $376.36 million +23.4%N/A6 $129.78 1/15/20232,350,000 shares $289.54 million +3.5%N/A4.8 $123.21 12/30/20222,270,000 shares $247.84 million +8.6%N/A5.1 $109.18 12/15/20222,090,000 shares $228.17 million +10.6%N/A4.9 $109.17 11/30/20221,890,000 shares $241.07 million -9.1%N/A4.4 $127.55 11/15/20222,080,000 shares $238.49 million -4.2%N/A5.1 $114.66 10/31/20222,170,000 shares $248.75 million -2.7%N/A5.8 $114.63 10/15/20222,230,000 shares $169.17 million +0.9%N/A6.5 $75.86 9/30/20222,210,000 shares $176.87 million +7.8%N/A6.6 $80.03 9/15/20222,050,000 shares $189.63 million +7.3%N/A5.8 $92.50 8/31/20221,910,000 shares $170.52 million -7.3%N/A5.6 $89.28 8/15/20222,060,000 shares $200.27 million +1.0%N/A6.2 $97.22 7/31/20222,040,000 shares $173.44 million -13.9%N/A6.2 $85.02 7/15/20222,370,000 shares $159.98 million -15.4%N/A7.7 $67.50 6/30/20222,800,000 shares $164.28 million -1.8%N/A8.9 $58.67 6/15/20222,850,000 shares $143.36 million -13.9%N/A8.9 $50.30 5/31/20223,310,000 shares $154.94 million -5.4%N/A10.8 $46.81 5/15/20223,500,000 shares $164.89 million +70.7%N/A11.2 $47.11 4/30/20222,050,000 shares $100.98 million +6.8%N/A6.2 $49.26 4/15/20221,920,000 shares $97.67 million +7.3%8.2%5.9 $50.87 3/31/20221,790,000 shares $113.74 million -4.3%7.6%5.3 $63.54 3/15/20221,870,000 shares $108.48 million -13.8%7.9%5.7 $58.01 2/28/20222,170,000 shares $149.19 million +19.2%9.2%5.8 $68.75 2/15/20221,820,000 shares $131.75 million +6.4%7.7%5 $72.39 1/31/20221,710,000 shares $135.76 million -3.9%7.4%4.6 $79.39 1/15/20221,780,000 shares $161.30 million -1.7%7.7%4.4 $90.62 12/31/20211,810,000 shares $160.55 million +4.6%7.8%4.9 $88.70 12/15/20211,730,000 shares $152.91 million +33.1%7.4%4.9 $88.39 11/30/20211,300,000 shares $97.46 million +3.2%5.6%4.1 $74.97 11/15/20211,260,000 shares $100.22 million -21.7%5.4%4.3 $79.54 10/29/20211,610,000 shares $112.25 million -5.3%6.9%6.7 $69.72 10/15/20211,700,000 shares $89.40 million -15.4%7.4%9.1 $52.59 9/30/20212,010,000 shares $114.83 million +1.0%8.7%10.8 $57.13 9/15/20211,990,000 shares $108.24 million -3.4%8.6%10.4 $54.39 8/31/20212,060,000 shares $120.08 million +1.5%8.9%11.3 $58.29 8/13/20212,030,000 shares $101.50 million +1.5%8.8%11.7 $50.00 7/30/20212,000,000 shares $92 million +2.6%8.7%10.7 $46.00Trump announcement boosts “next Bitcoin” (Ad)President Trump just made his first big crypto move ... Announcing the creation of a national strategic reserve for Bitcoin and Ethereum. But there's something else going on here …To learn more about this next Bitcoin — click here before another proclamation by Trump sends the pr 7/15/20211,950,000 shares $85.02 million +2.1%8.5%9.4 $43.60 6/30/20211,910,000 shares $98.54 million -6.8%8.4%9.1 $51.59 6/15/20212,050,000 shares $102.79 million -7.2%9.4%9.8 $50.14 5/28/20212,210,000 shares $115.03 million -15.3%10.2%10.4 $52.05 5/14/20212,610,000 shares $115.78 million +7.9%N/A11 $44.36 4/30/20212,420,000 shares $113.28 million -4.0%11.2%8.3 $46.81 4/15/20212,520,000 shares $138.47 million -11.6%12.0%8.3 $54.95 3/31/20212,850,000 shares $155.10 million -2.4%13.6%8.3 $54.42 3/15/20212,920,000 shares $174.41 million +1.7%13.9%8 $59.73 2/26/20212,870,000 shares $179.06 million -0.4%13.7%7.9 $62.39 2/12/20212,880,000 shares $201.14 million +19.5%13.7%7.8 $69.84 1/29/20212,410,000 shares $137.30 million -10.1%11.7%7.2 $56.97 1/15/20212,680,000 shares $152.17 million -3.3%13.0%8.7 $56.78 12/31/20202,770,000 shares $115.65 million +4.9%13.4%9.8 $41.75 12/15/20202,640,000 shares $108.37 million -7.4%12.8%10.5 $41.05 11/30/20202,850,000 shares $101.12 million -0.7%13.8%11.6 $35.48 11/15/20202,870,000 shares $98.56 million +3.2%13.9%12.9 $34.34 10/30/20202,780,000 shares $76.81 million -3.8%13.5%12.8 $27.63 10/15/20202,890,000 shares $86.15 million -1.4%14.2%9.5 $29.81 9/30/20202,930,000 shares $77.21 million -7.9%14.7%9 $26.35 9/15/20203,180,000 shares $87.26 million -3.3%15.9%9.6 $27.44 8/31/20203,290,000 shares $80.44 million -0.9%16.5%9.6 $24.45 8/14/20203,320,000 shares $81.74 million +20.7%16.6%9.2 $24.62 7/31/20202,750,000 shares $64.90 million -1.8%13.5%7.6 $23.60 7/15/20202,800,000 shares $82.71 million -0.7%13.8%8.9 $29.54 6/30/20202,820,000 shares $75.07 million +2.2%13.9%8.6 $26.62 6/15/20202,760,000 shares $74.08 million -8.9%13.6%8 $26.84 5/29/20203,030,000 shares $78.33 million -6.8%15.0%7.4 $25.85 5/15/20203,250,000 shares $74.43 million -0.3%16.1%7 $22.90 PI Short Interest - Frequently Asked Questions What is Impinj's current short interest? Short interest is the volume of Impinj shares that have been sold short but have not yet been closed out or covered. As of April 15th, traders have sold 3,250,000 shares of PI short. 23.24% of Impinj's shares are currently sold short. Learn More on Impinj's current short interest. What is a good short interest ratio for Impinj? 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. PI shares currently have a short interest ratio of 4.0. Learn More on Impinj's short interest ratio. Which institutional investors are shorting Impinj? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Impinj: Garde Capital Inc., Arrowpoint Investment Partners Singapore Pte. Ltd., Wolverine Trading LLC, D. E. Shaw & Co. Inc., Cubist Systematic Strategies LLC, Caption Management LLC, Citadel Advisors LLC, Jane Street Group LLC, JAT Capital Mgmt LP, Tudor Investment Corp ET AL, Concourse Financial Group Securities Inc., PEAK6 LLC, Walleye Trading LLC, and Walleye Capital LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Impinj? 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. 23.24% of Impinj's floating shares are currently sold short. Is Impinj's short interest increasing or decreasing? Impinj saw a decline in short interest during the month of April. As of April 15th, there was short interest totaling 3,250,000 shares, a decline of 10.5% from the previous total of 3,630,000 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. How does Impinj's short interest compare to its competitors? 23.24% of Impinj's shares are currently sold short. Here is how the short interest of companies in the industry of "electronic equipment" compare to Impinj: Credo Technology Group Holding Ltd (6.26%), Nextracker Inc. (6.73%), Qorvo, Inc. (6.96%), Universal Display Co. (3.72%), Tower Semiconductor Ltd. (1.76%), Lumentum Holdings Inc. (15.65%), Allegro MicroSystems, Inc. (13.73%), SiTime Co. (6.51%), LG Display Co., Ltd. (0.01%), Viavi Solutions Inc. (2.68%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.71 billion), iShares 20+ Year Treasury Bond ETF ($9.48 billion), Strategy Incorporated ($8.92 billion), Charter Communications, Inc. ($3.86 billion), Apollo Global Management, Inc. ($3.86 billion), Capital One Financial Co. ($3.72 billion), Super Micro Computer, Inc. ($3.47 billion), AppLovin Co. ($2.64 billion), VanEck Semiconductor ETF ($2.46 billion), and The Kroger Co. ($2.33 billion). View all of the most shorted stocks. What does it mean to sell short Impinj stock? Short selling PI is an investing strategy that aims to generate trading profit from Impinj as its price is falling. PI shares are trading up $2.44 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 Impinj? A short squeeze for Impinj 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 PI, which in turn drives the price of the stock up even further. How often is Impinj'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 PI, twice per month. The most recent reporting period available is April, 15 2025. More Short Interest Resources from MarketBeat Related Companies Credo Technology Group Short Squeeze Nextracker Short Squeeze Qorvo Short Squeeze Universal Display Short Squeeze Tower Semiconductor Short Squeeze Lumentum Short Squeeze Allegro MicroSystems Short Squeeze SiTime Short Squeeze LG Display Short Squeeze Viavi Solutions 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:PI) was last updated on 5/1/2025 by MarketBeat.com Staff From Our PartnersHow to invest in Elon Musk’s Optimus before its launchElon Musk is set to completely take over the AI industry with Optimus… A breakthrough AI-powered robot that El...InvestorPlace | SponsoredIs he more powerful than Trump? Is there anybody more powerful than Donald Trump right now? 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