quantum si inc - QSI

QSI

Close Chg Chg %
1.05 -0.01 -0.95%

Closed Market

1.04

-0.01 (0.95%)

Volume: 7.64M

Last Updated:

Apr 16, 2026, 4:00 PM EDT

Company Overview: quantum si inc - QSI

QSI Key Data

Open

$1.08

Day Range

1.00 - 1.09

52 Week Range

0.69 - 3.10

Market Cap

$227.19M

Shares Outstanding

216.37M

Public Float

173.11M

Beta

3.09

Rev. Per Employee

N/A

P/E Ratio

N/A

EPS

-$0.52

Yield

0.00%

Dividend

N/A

EX-DIVIDEND DATE

SHORT INTEREST

N/A

AVERAGE VOLUME

3.57M

 

QSI Performance

1 Week
 
41.80%
 
1 Month
 
24.25%
 
3 Months
 
-17.32%
 
1 Year
 
-8.70%
 
5 Years
 
-90.08%
 

QSI Analyst Ratings

  • Sell
  • Under
  • Hold
  • Over
  • Buy
Number of Ratings 4
Full Ratings ➔

About quantum si inc - QSI

Quantum-Si, Inc. is a life sciences company focused on revolutionizing the growing field of proteomics. It engages in the development of a proprietary universal single-molecule detection platform to enable Next-Generation Protein Sequencing (NGPS), the ability to sequence proteins in a massively parallel fashion. Its platform includes platinum NGPS instrument, platinum analysis software, and consumable kits for platinum instrument. The company was founded by Jonathan M. Rothberg on June 24, 2013 and is headquartered in Branford, CT.

QSI At a Glance

Quantum-Si, Inc.
29 Business Park Drive
Branford, Connecticut 06405
Phone 1-866-688-7374 Revenue 2.44M
Industry Packaged Software Net Income -101,339,000.00
Sector Technology Services Employees 145
Fiscal Year-end 12 / 2026
View SEC Filings

QSI Valuation

P/E Current N/A
P/E Ratio (with extraordinary items) N/A
P/E Ratio (without extraordinary items) N/A
Price to Sales Ratio 89.303
Price to Book Ratio 1.081
Price to Cash Flow Ratio N/A
Enterprise Value to EBITDA -0.635
Enterprise Value to Sales 24.137
Total Debt to Enterprise Value 0.071

QSI Efficiency

Revenue/Employee 16,800.00
Income Per Employee -698,889.655
Receivables Turnover 0.413
Total Asset Turnover 0.01

QSI Liquidity

Current Ratio 7.638
Quick Ratio 7.499
Cash Ratio 7.075

QSI Profitability

Gross Margin -135.509
Operating Margin -3,983.908
Pretax Margin -4,157.677
Net Margin -4,160.057
Return on Assets -41.00
Return on Equity -46.524
Return on Total Capital -45.162
Return on Invested Capital -45.32

QSI Capital Structure

Total Debt to Total Equity 1.892
Total Debt to Total Capital 1.857
Total Debt to Total Assets 1.69
Long-Term Debt to Equity 1.054
Long-Term Debt to Total Capital 1.035
  • Income Statement
  • Balance Sheet
  • Cash Flow Statement

Annual Financials for Quantum Si Inc - QSI

Collapse All in section
All values USD millions. 2022 2023 2024 2025 5-year trend
Sales/Revenue
- 1.08M 3.06M 2.44M
Sales Growth
- - +182.62% -20.34%
-
Cost of Goods Sold (COGS) incl D&A
2.58M 4.75M 6.66M 5.74M
COGS excluding D&A
- - - -
-
Depreciation & Amortization Expense
2.58M 4.16M 5.20M 4.45M
Depreciation
2.58M 3.96M 4.60M 4.45M
Amortization of Intangibles
- - 200.00K 600.00K
-
COGS Growth
+148.22% +83.82% +40.17% -13.83%
Gross Income
(2.58M) (3.67M) (3.60M) (3.30M)
Gross Income Growth
-148.22% -41.95% +1.85% +8.31%
Gross Profit Margin
- -339.00% -117.72% -135.51%
2022 2023 2024 2025 5-year trend
SG&A Expense
111.77M 103.00M 102.72M 93.75M
Research & Development
72.06M 63.94M 58.09M 53.45M
Other SG&A
39.71M 39.06M 44.63M 40.30M
SGA Growth
+25.66% -7.85% -0.27% -8.74%
Other Operating Expense
- - - -
-
Unusual Expense
19.40M (805.00K) 5.97M 14.85M
EBIT after Unusual Expense
(133.76M) (105.86M) (112.30M) (111.90M)
Non Operating Income/Expense
1.32M 9.90M 11.35M 10.62M
Non-Operating Interest Income
- - - 8.96M
-
Equity in Earnings of Affiliates
- - - -
-
Interest Expense
- - - -
-
Interest Expense Growth
- - - -100.00%
-
Gross Interest Expense
- - - -
-
Interest Capitalized
- - - -
-
Pretax Income
(132.44M) (95.96M) (100.95M) (101.28M)
Pretax Income Growth
-39.43% +27.55% -5.20% -0.33%
Pretax Margin
- -8,868.76% -3,301.21% -4,157.68%
Income Tax
- - 56.00K 58.00K
-
Income Tax - Current - Domestic
- - - -
-
Income Tax - Current - Foreign
- - 56.00K 58.00K
-
Income Tax - Deferred - Domestic
- - - -
-
Income Tax - Deferred - Foreign
- - - -
-
Income Tax Credits
- - - -
-
Equity in Earnings of Affiliates
- - - -
-
Other After Tax Income (Expense)
- - - -
-
Consolidated Net Income
(132.44M) (95.96M) (101.01M) (101.34M)
Minority Interest Expense
- - - -
-
Net Income
(132.44M) (95.96M) (101.01M) (101.34M)
Net Income Growth
-39.43% +27.55% -5.26% -0.33%
Net Margin Growth
- -8,868.76% -3,303.04% -4,160.06%
Extraordinaries & Discontinued Operations
- - - -
-
Discontinued Operations
- - - -
-
Net Income After Extraordinaries
(132.44M) (95.96M) (101.01M) (101.34M)
Preferred Dividends
- - - -
-
Net Income Available to Common
(132.44M) (95.96M) (101.01M) (101.34M)
EPS (Basic)
-0.9511 -0.6791 -0.7054 -0.5124
EPS (Basic) Growth
+20.32% +28.60% -3.87% +27.36%
Basic Shares Outstanding
139.26M 141.30M 143.20M 197.76M
EPS (Diluted)
-0.9511 -0.6791 -0.7054 -0.5124
EPS (Diluted) Growth
+20.32% +28.60% -3.87% +27.36%
Diluted Shares Outstanding
139.26M 141.30M 143.20M 197.76M
EBITDA
(111.77M) (102.51M) (101.12M) (92.59M)
EBITDA Growth
-25.66% +8.29% +1.35% +8.43%
EBITDA Margin
- -9,474.21% -3,306.83% -3,801.07%

Snapshot

Average Recommendation OVERWEIGHT Average Target Price 2.833
Number of Ratings 4 Current Quarters Estimate -0.11
FY Report Date 06 / 2026 Current Year's Estimate -0.45
Last Quarter’s Earnings -0.11 Median PE on CY Estimate N/A
Year Ago Earnings -0.51 Next Fiscal Year Estimate -0.397
Median PE on Next FY Estimate N/A

Earnings Per Share

This Quarter Next Quarter This Fiscal Next Fiscal
# of Estimates 3 3 3 3
Mean Estimate -0.11 -0.11 -0.45 -0.40
High Estimates -0.10 -0.10 -0.42 -0.35
Low Estimate -0.12 -0.13 -0.50 -0.47
Coefficient of Variance -9.09 -13.48 -9.69 -16.21

Analysts Recommendations

Current 1 Month Ago 3 Months Ago
BUY 3 3 2
OVERWEIGHT 0 0 0
HOLD 1 1 1
UNDERWEIGHT 0 0 0
SELL 0 0 0
MEAN Overweight Overweight Overweight

Insider Actions for Quantum Si Inc - QSI

Date Name Shares Transaction Value
Mar 17, 2026 Jeffrey Alan Hawkins President & CEO; Director 3,883,624 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 Jeffrey Alan Hawkins President & CEO; Director 1,561,695 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 Jeffry R. Keyes Chief Financial Officer 1,816,000 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 Jeffry R. Keyes Chief Financial Officer 780,847 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 Christian LaPointe GC & Corp. Secretary 1,209,976 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 Christian LaPointe GC & Corp. Secretary 312,339 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 John S. Vieceli Chief Product Officer 1,192,654 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Mar 17, 2026 John S. Vieceli Chief Product Officer 468,508 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00
Feb 27, 2026 Amir Jafri Director 114,055 Grant, award or other acq pursuant to Rule 16b-3(d) 0.00

Quantum Si Inc in the News