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Quantum-Si (QSI) Short Interest Ratio & Short Volume

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$1.10 -0.07 (-5.60%)
As of 02:56 PM Eastern
This is a fair market value price provided by Polygon.io. Learn more.

Quantum-Si Short Interest Data

Quantum-Si (QSI) has a short interest of 16.64 million shares, representing 12.42% of the float (the number of shares available for trading by the public). This marks a -5.78% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.7, indicating that it would take 0.7 days of the average trading volume of 17.83 million shares to cover all short positions.

Current Short Interest
16,640,000 shares
Previous Short Interest
17,660,000 shares
Change Vs. Previous Month
-5.78%
Dollar Volume Sold Short
$22.63 million
Short Interest Ratio
0.7 Days to Cover
Last Record Date
March 15, 2025
Outstanding Shares
183,140,000 shares
Float Size
133,970,000 shares
Short Percent of Float
12.42%
Today's Trading Volume
3,708,967 shares
Average Trading Volume
17,828,725 shares
Today's Volume Vs. Average
21%
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QSI Short Interest Over Time

QSI Days to Cover Over Time

QSI Percentage of Float Shorted Over Time

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Quantum-Si Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
3/15/202516,640,000 shares $22.63 million -5.8%12.4%0.7 $1.36
2/28/202517,660,000 shares $24.37 million -6.1%12.8%0.7 $1.38
2/15/202518,800,000 shares $36.66 million +0.4%13.8%0.6 $1.95
1/31/202518,730,000 shares $37.09 million +0.8%14.6%0.6 $1.98
1/15/202518,590,000 shares $43.69 million -21.4%14.5%0.6 $2.35
12/31/202423,650,000 shares $63.86 million +109.9%21.5%0.9 $2.70
12/15/202411,270,000 shares $19.38 million +24.0%11.6%1 $1.72
11/30/20249,090,000 shares $11.36 million +76.9%9.3%1.1 $1.25
11/15/20245,140,000 shares $3.77 million -12.9%5.3%0.8 $0.73
10/31/20245,900,000 shares $4.14 million -0.2%6.1%12 $0.70
10/15/20245,910,000 shares $4.98 million -3.1%6.1%12.1 $0.84
9/30/20246,100,000 shares $5.38 million +4.3%6.3%11.7 $0.88
9/15/20245,850,000 shares $5.40 million -2.3%6.1%7.3 $0.92
8/31/20245,990,000 shares $5.67 million +2.4%6.2%7.5 $0.95
8/15/20245,850,000 shares $5.97 million -6.6%6.1%7.1 $1.02
7/31/20246,260,000 shares $6.82 million -2.2%6.5%7.7 $1.09
7/15/20246,400,000 shares $6.91 million -7.4%6.6%8 $1.08
6/30/20246,910,000 shares $7.26 million -6.5%7.2%8.8 $1.05
6/15/20247,390,000 shares $10.12 million No Change7.7%10.7 $1.37
5/31/20247,390,000 shares $11.23 million +5.3%7.7%12.2 $1.52
5/15/20247,020,000 shares $13.06 million -8.8%7.3%9.6 $1.86
4/30/20247,700,000 shares $12.40 million +4.1%8.0%10.2 $1.61
4/15/20247,400,000 shares $12.28 million -1.9%7.6%9.8 $1.66
3/31/20247,540,000 shares $14.85 million +2.5%7.7%10 $1.97
3/15/20247,360,000 shares $12.73 million -5.9%7.5%9.3 $1.73
2/29/20247,820,000 shares $13.06 million -5.2%7.9%10.3 $1.67
2/15/20248,250,000 shares $14.85 million +5.6%8.3%12.9 $1.80
1/31/20247,810,000 shares $12.18 million -18.3%7.8%11.5 $1.56
1/15/20249,560,000 shares $16.54 million +7.2%9.6%13.7 $1.73
12/31/20238,920,000 shares $17.93 million +10.4%9.0%12.5 $2.01
12/15/20238,080,000 shares $13.74 million -18.5%8.1%11.6 $1.70
11/30/20239,910,000 shares $15.96 million +8.0%10.0%13.8 $1.61
11/15/20239,180,000 shares $15.24 million +2.1%9.3%11.3 $1.66
10/31/20238,990,000 shares $10.79 million -5.2%9.2%8.6 $1.20
10/15/20239,480,000 shares $12.70 million -1.6%9.7%6 $1.34
9/30/20239,630,000 shares $15.99 million -6.1%9.8%4.6 $1.66
9/15/202310,260,000 shares $22.98 million +23.0%10.5%4.8 $2.24
8/31/20238,340,000 shares $19.52 million -1.2%8.5%3.8 $2.34
8/15/20238,440,000 shares $17.64 million +53.7%8.6%4.1 $2.09
7/31/20235,490,000 shares $21.36 million +34.6%5.7%3 $3.89
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7/15/20234,080,000 shares $9.87 million +13.0%4.2%3.4 $2.42
6/30/20233,610,000 shares $6.46 million +11.4%3.8%5.5 $1.79
6/15/20233,240,000 shares $5.18 million -1.2%3.4%5.2 $1.60
5/31/20233,280,000 shares $4.95 million -2.1%3.4%5.9 $1.51
5/15/20233,350,000 shares $4.76 million -1.2%3.5%5.3 $1.42
4/30/20233,390,000 shares $4.98 million +1.2%3.6%5.4 $1.47
4/15/20233,350,000 shares $5.09 million -3.5%3.5%5 $1.52
3/31/20233,470,000 shares $6.11 million +4.5%3.7%4.9 $1.76
3/15/20233,320,000 shares $5.88 million +6.1%3.5%4.6 $1.77
2/28/20233,130,000 shares $5.70 million +9.1%3.3%4.4 $1.82
2/15/20232,870,000 shares $6.20 million -6.5%3.0%4 $2.16
1/31/20233,070,000 shares $6.82 million -12.3%3.2%4.2 $2.22
1/15/20233,500,000 shares $7.74 million -5.4%3.7%4.7 $2.21
12/30/20223,700,000 shares $6.77 million +1.9%3.9%5.1 $1.83
12/15/20223,630,000 shares $7.80 million -14.8%3.8%5.3 $2.15
11/30/20224,260,000 shares $10.14 million -0.2%4.6%6.9 $2.38
11/15/20224,270,000 shares $13.37 million +6.0%4.6%8.1 $3.13
10/31/20224,030,000 shares $12.21 million -4.1%4.4%8.1 $3.03
10/15/20224,200,000 shares $11.00 million +1.0%4.6%8.7 $2.62
9/30/20224,160,000 shares $11.44 million -4.4%4.5%8.4 $2.75
9/15/20224,350,000 shares $13.35 million -0.7%4.7%5.3 $3.07
8/31/20224,380,000 shares $13.67 million -5.4%4.8%4.5 $3.12
8/15/20224,630,000 shares $20.14 million +1.3%5.2%4.5 $4.35
7/31/20224,570,000 shares $14.85 million -16.8%5.2%4.1 $3.25
7/15/20225,490,000 shares $15.87 million -3.4%6.3%4.9 $2.89
6/30/20225,680,000 shares $13.18 million +9.2%6.5%5 $2.32
6/15/20225,200,000 shares $17.47 million -10.0%6.3%4.9 $3.36
5/31/20225,780,000 shares $24.57 million -2.9%7.0%7 $4.25
5/15/20225,950,000 shares $21.42 million +9.2%7.2%6.6 $3.60
4/30/20225,450,000 shares $23.87 million -2.5%6.6%5.5 $4.38
4/15/20225,590,000 shares $23.65 million -5.3%6.7%5.2 $4.23
3/31/20225,900,000 shares $27.61 million +3.0%7.2%5.2 $4.68
3/15/20225,730,000 shares $22.12 million -6.4%7.0%4.4 $3.86
2/28/20226,120,000 shares $25.46 million +20.7%7.4%5.1 $4.16
2/15/20225,070,000 shares $20.58 million -14.7%6.2%4.2 $4.06
1/31/20225,940,000 shares $28.45 million +6.5%7.1%5.4 $4.79
1/15/20225,580,000 shares $32.59 million +11.8%6.7%5.5 $5.84
12/31/20214,990,000 shares $39.27 million -7.8%6.0%5.6 $7.87
12/15/20215,410,000 shares $33.76 million +6.3%6.5%6.3 $6.24
11/30/20215,090,000 shares $32.98 million +2.4%6.2%6.5 $6.48
11/15/20214,970,000 shares $39.21 million -2.4%6.0%6.6 $7.89
10/29/20215,090,000 shares $41.03 million -3.6%6.2%6.1 $8.06
10/15/20215,280,000 shares $45.41 million +8.0%6.4%4.9 $8.60
9/30/20214,890,000 shares $40.78 million +34.3%6.0%4.1 $8.34
9/15/20213,640,000 shares $33.12 million -5.2%4.4%2.8 $9.10
8/31/20213,840,000 shares $37.32 million +16.7%4.7%2.8 $9.72
8/13/20213,290,000 shares $26.22 million No Change4.0%2.6 $7.97

QSI 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 closed out or covered. As of March 15th, investors have sold 16,640,000 shares of QSI short. 12.42% of Quantum-Si's shares are currently sold 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. QSI shares currently have a short interest ratio of 1.0. Learn More on Quantum-Si's short interest ratio.

Which institutional investors are shorting Quantum-Si?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Quantum-Si: Wolverine Trading LLC, Group One Trading LLC, Citadel Advisors LLC, Jane Street Group LLC, Susquehanna International Group LLP, Simplex Trading LLC, and Belvedere Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Quantum-Si?

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. 12.42% of Quantum-Si's floating shares are currently sold short.

Is Quantum-Si's short interest increasing or decreasing?

Quantum-Si saw a decrease in short interest in the month of March. As of March 15th, there was short interest totaling 16,640,000 shares, a decrease of 5.8% from the previous total of 17,660,000 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 Quantum-Si's float size?

Quantum-Si currently has issued a total of 183,140,000 shares. Some of Quantum-Si'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. Quantum-Si currently has a public float of 133,970,000 shares.

How does Quantum-Si's short interest compare to its competitors?

12.42% of Quantum-Si's shares are currently sold short. Here is how the short interest of companies in the industry of "measuring and control equipment" compare to Quantum-Si: Transcat, Inc. (5.44%), Cytek Biosciences, Inc. (3.28%), Standard BioTools Inc. (4.29%), EyePoint Pharmaceuticals, Inc. (16.66%), Allient Inc. (1.37%), Quanterix Co. (6.15%), Aehr Test Systems (24.90%), 908 Devices Inc. (11.07%), Frequency Electronics, Inc. (0.16%), Rapid Micro Biosystems, Inc. (5.78%),

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 ($26.28 billion), iShares 20+ Year Treasury Bond ETF ($9.53 billion), MicroStrategy Incorporated ($8.50 billion), Apollo Global Management, Inc. ($4.86 billion), Super Micro Computer, Inc. ($4.85 billion), Charter Communications, Inc. ($4.28 billion), Capital One Financial Co. ($4.08 billion), AppLovin Co. ($3.82 billion), Canadian Natural Resources Limited ($3.78 billion), and Schlumberger Limited ($2.87 billion). View all of the most shorted stocks.

What does it mean to sell short Quantum-Si stock?

Short selling QSI is an investing strategy that aims to generate trading profit from Quantum-Si as its price is falling. QSI shares are trading down $0.07 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 QSI, 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 QSI, twice per month. The most recent reporting period available is March, 15 2025.




This page (NASDAQ:QSI) was last updated on 4/4/2025 by MarketBeat.com Staff
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