Quantum-Si (QSIAW) Short Interest Ratio & Short Volume $0.56 -0.04 (-6.65%) Closing price 03:59 PM EasternExtended Trading$0.60 +0.04 (+7.14%) As of 07:00 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 AnalysisChartCompetitorsSEC FilingsShort InterestTrendsBuy This Stock Quantum-Si Short Interest DataQuantum-Si (QSIAW) has a short interest of 50,100 shares. This marks a -25.89% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.9, indicating that it would take 1.9 days of the average trading volume of 62,489 shares to cover all short positions.Current Short Interest50,100 sharesPrevious Short Interest67,600 sharesChange Vs. Previous Month-25.89%Dollar Volume Sold Short$32.62 thousandShort Interest Ratio1.9 Days to CoverLast Record DateJune 30, 2025Today's Trading Volume2,763 sharesAverage Trading Volume62,489 sharesToday's Volume Vs. Average4% Short Selling Quantum-Si? Sign up to receive the latest short interest report for Quantum-Si and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartQSIAW Short Interest Over TimeQSIAW Days to Cover Over TimeQSIAW Percentage of Float Shorted Over Time Quantum-Si Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/202550,100 shares $32.62 thousand -25.9%N/A1.9 $0.65 6/15/202567,600 shares $45.70 thousand -21.6%N/A2.3 $0.68 5/31/202586,200 shares $71.12 thousand +19.1%N/A2.7 $0.83 5/15/202572,400 shares $35.47 thousand +103.4%N/A2.3 $0.49 4/30/202535,600 shares $12.46 thousand -13.4%N/A1.4 $0.35 4/15/202541,100 shares $15.86 thousand +12.9%N/A1.4 $0.39 3/31/202536,400 shares $14.56 thousand -2.2%N/A0.7 $0.40 3/15/202537,200 shares $18.04 thousand +1.9%N/A0.3 $0.49 2/28/202536,500 shares $17.99 thousand -8.5%N/A0.3 $0.49 2/15/202539,900 shares $28.93 thousand -33.6%N/A0.2 $0.73 Get the Latest News and Ratings for QSIAW and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Quantum-Si and its competitors with MarketBeat's FREE daily newsletter. 1/31/202560,100 shares $43.27 thousand +51.4%N/A0.3 $0.72 1/15/202539,700 shares $37.71 thousand -58.9%N/A0.2 $0.95 12/31/202496,500 shares $120.63 thousand +209.3%N/A0.6 $1.25 12/15/202431,200 shares $13.42 thousand -47.9%N/A0.4 $0.43 11/30/202459,900 shares $22.16 thousand +1,074.5%N/A0.9 $0.37 11/15/20245,100 shares $260.61 +325.0%N/A0.1 $0.05 10/31/20241,200 shares $78.84 -80.3%N/A0.1 $0.07 10/15/20246,100 shares $484.95 +369.2%N/A0.9 $0.08 9/30/20241,300 shares $113.49 -7.1%N/A0.2 $0.09 9/15/20241,400 shares $138.60 No ChangeN/A0.2 $0.10 8/31/20241,400 shares $138.37 -6.7%N/A0.3 $0.10 8/15/20241,500 shares $202.35 -31.8%N/A0.3 $0.13 7/31/20242,200 shares $333.96 +10.0%N/A0.4 $0.15 7/15/20242,000 shares $360.00 +11.1%N/A0.3 $0.18 6/30/20241,800 shares $225.00 -55.0%N/A0.3 $0.13 6/15/20244,000 shares $700.00 No ChangeN/A0.6 $0.18 5/31/20244,000 shares $720.00 -39.4%N/A0.5 $0.18 5/15/20246,600 shares $1.25 thousand -1.5%N/A0.7 $0.19 4/30/20246,700 shares $1.54 thousand -4.3%N/A0.7 $0.23 4/15/20247,000 shares $1.68 thousand +118.8%N/A0.8 $0.24 3/31/20243,200 shares $775.04 -22.0%N/A0.3 $0.24 3/15/20244,100 shares $1.18 thousand +272.7%N/A0.4 $0.29 2/29/20241,100 shares $225.50 No ChangeN/A0.1 $0.21 2/15/20241,100 shares $176.00 +120.0%N/A0.1 $0.16 1/31/2024500 shares $65.50 -76.2%N/A0.1 $0.13 1/15/20242,100 shares $582.75 -70.4%N/A0.3 $0.28 12/31/20237,100 shares $2.24 thousand -32.4%N/A1.2 $0.32 12/15/202310,500 shares $2.73 thousand +356.5%N/A1.9 $0.26 11/30/20232,300 shares $506.00 -4.2%N/A0.4 $0.22 11/15/20232,400 shares $648.00 +26.3%N/A0.3 $0.27A new rule goes live in July — and the banks are quietly cashing in (Ad)A little-known regulation quietly goes into effect this July. 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We're talking about something they don't want you to notice — because the fewer people who act on this, the better it is for them.To help you get started, we're giving away a FREE Wealth Protection Guide that shows you exactly how 10/31/20231,900 shares $199.50 -24.0%N/A0.2 $0.11 10/15/20232,500 shares $718.25 +4.2%N/A0.3 $0.29 9/30/20232,400 shares $648.00 +20.0%N/A0.2 $0.27 9/15/20232,000 shares $620.00 -51.2%N/A0.2 $0.31 8/31/20234,100 shares $1.44 thousand -21.2%N/A0.3 $0.35 8/15/20235,200 shares $2.08 thousand -51.4%N/A0.4 $0.40 7/31/202310,700 shares $7.99 thousand +1.9%N/A0.7 $0.75 7/15/202310,500 shares $3.67 thousand +45.8%N/A0.8 $0.35 6/30/20237,200 shares $1.66 thousand -20.9%N/A0.9 $0.23 6/15/20239,100 shares $1.75 thousand +24.7%N/A1 $0.19 5/31/20237,300 shares $1.79 thousand -9.9%N/A0.8 $0.25 5/15/20238,100 shares $1.38 thousand +2.5%N/A1.1 $0.17 4/30/20237,900 shares $1.19 thousand +5.3%N/A1 $0.15 4/15/20237,500 shares $1.13 thousand +1.4%N/A0.9 $0.15 3/31/20237,400 shares $1.11 thousand -1.3%N/A0.7 $0.15 3/15/20237,500 shares $2.18 thousand No ChangeN/A0.7 $0.29 2/28/20237,500 shares $1.94 thousand -9.6%N/A0.6 $0.26 2/15/20238,300 shares $2.91 thousand +56.6%N/A0.7 $0.35 1/31/20235,300 shares $2.88 thousand +32.5%N/A0.5 $0.54 1/15/20234,000 shares $1.69 thousand -4.8%N/A0.4 $0.42 12/30/20224,200 shares $1.05 thousand +55.6%N/A0.5 $0.25 12/15/20222,700 shares $903.15 -6.9%N/A0.4 $0.33 11/30/20222,900 shares $1.02 thousand No ChangeN/A0.5 $0.35 11/15/20222,900 shares $1.51 thousand -6.5%N/A0.6 $0.52 10/31/20223,100 shares $1.77 thousand +34.8%N/A0.7 $0.57 10/15/20222,300 shares $1.01 thousand -25.8%N/A0.5 $0.44 9/30/20223,100 shares $1.64 thousand -3.1%N/A0.8 $0.53 9/15/20223,200 shares $1.95 thousand -3.0%N/A0.8 $0.61 8/31/20223,300 shares $2.05 thousand -10.8%N/A0.7 $0.62 8/15/20223,700 shares $2.95 thousand +5.7%N/A0.6 $0.80 7/31/20223,500 shares $2.07 thousand -2.8%N/A0.6 $0.59 7/15/20223,600 shares $2.12 thousand -26.5%N/A0.5 $0.59 6/30/20224,900 shares $2.77 thousand -3.9%N/A0.6 $0.57 6/15/20225,100 shares $3.21 thousand -13.6%N/A0.6 $0.63 5/31/20225,900 shares $0.00 -22.4%N/A0.7 $0.00 QSIAW Short Interest - Frequently Asked Questions What is Quantum-Si's current short interest? Short interest is the volume of Quantum-Si shares that have been sold short but have not yet been covered or closed out. As of June 30th, traders have sold 50,100 shares of QSIAW short. Learn More on Quantum-Si's current short interest. What is a good short interest ratio for Quantum-Si? 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. QSIAW shares currently have a short interest ratio of 2.0. Learn More on Quantum-Si's short interest ratio. Is Quantum-Si's short interest increasing or decreasing? Quantum-Si saw a decline in short interest in the month of June. As of June 30th, there was short interest totaling 50,100 shares, a decline of 25.9% from the previous total of 67,600 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 Quantum-Si's short interest compare to its competitors? Here is how the short interest of companies in the industry of "measuring and control equipment" compare to Quantum-Si: HTG Molecular Diagnostics, Inc. (0.07%), Trane Technologies plc (1.49%), Keysight Technologies Inc. (1.66%), Veralto Corporation (0.00%), Fortive Corporation (1.77%), Teradyne, Inc. (4.33%), Revvity Inc. (5.06%), Avantor, Inc. (4.96%), Nova Ltd. (5.67%), Vontier Corporation (0.38%), 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), Strategy 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 Quantum-Si stock? Short selling QSIAW is an investing strategy that aims to generate trading profit from Quantum-Si as its price is falling. QSIAW shares are trading down $0.04 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 Quantum-Si? A short squeeze for Quantum-Si 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 QSIAW, which in turn drives the price of the stock up even further. How often is Quantum-Si'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 QSIAW, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies HTGMQ Short Interest Data PRENW Short Interest Data TT Short Interest Data KEYS Short Interest Data VLTO Short Interest Data FTV Short Interest Data TER Short Interest Data RVTY Short Interest Data AVTR Short Interest Data NVMI 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:QSIAW) was last updated on 7/22/2025 by MarketBeat.com Staff From Our PartnersYour blueprint for crypto wealthMark August 12th on your calendar. 27 of crypto's most successful minds are about to reveal everything…Crypto 101 Media | SponsoredA new rule goes live in July — and the banks are quietly cashing inA little-known regulation quietly goes into effect this July. And it's already being exploited by Wall Stre...American Alternative | SponsoredTrump’s $100 Trillion Land Rush Is OnWhat Is "The US: IPO"? 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