QuantumSi Inc share price logo

QuantumSi Inc Share Price

NASDAQ: QSI

Small Cap

$0.84

+0.05

(+6.61%)

as on

QuantumSi Inc Stock Performance

as on April 15, 2026 at 6:59 am IST

  • Day's Low

    Day's High

    $0.80
    $0.86
    downward going graph

    4.76%

    Downside

    2.38%

    Upside

    downward going graph
  • 52 Week's Low

    52 Week's High

    $0.69
    $3.10
    downward going graph

    17.71%

    Downside

    269.05%

    Upside

    downward going graph

QuantumSi Inc share price movements today

Previous Close
$0.79
Open
$0.81
Volume
3.1M
Day's Low - High
$0.80 - $0.86
52 Week Low - High
$0.69 - $3.10

QuantumSi Inc Historical Returns

1 Month Return
-16.94 %
3 Month Return
-37.9 %
1 Year Return
-35.88 %
3 Year Return
-48.11 %
5 Year Return
-92.93 %

QuantumSi Inc Stock Fundamentals & Key Indicators

Check QuantumSi Inc market cap, PE, PB, PEG ratios, dividend yield, and other key fundamental indicators.

Market Cap

$160.2M

EPS (TTM)

-0.42

Dividend Yield

0.00%

Quarterly Earnings Growth YOY

0.00%

PE Ratio (TTM)

0

PEG Ratio

0

EBITDA

-92.6M

Revenue (TTM)

2.4M

Profit Margin

0.00%

Return On Equity TTM

-46.52%

QuantumSi Inc vs Peer Comparison

Compare market cap, revenue, PE, and other key metrics of QuantumSi Inc with its industry peers.

Company
Analyst View
Market Cap
5 Years Return %PE RatioProfit Margin %
BUY$160.2M-92.93%NA0.00%
BUY$91.8B59.26%31.8514.44%
BUY$129.9B37.64%40.3312.92%
BUY$112.0B-28.97%24.3613.00%
BUY$174.3B-17.13%26.9614.72%

Stock Returns calculator for QuantumSi Inc Stock including INR - Dollar returns

The QuantumSi Inc stock calculator helps Indian investors calculate returns based on the historical performance of the stock. Just choose your investment amount and duration to get insights and invest more confidently. See stock returns as well as the effect of dollar appreciation over different durations.

*Dollar Impact: The bonus return you make when the US Dollar rises against the Rupee; calculated on the full amount you walk away with, not just what you invested in.

Investment Value

₹1,00,000

  • 1Y

  • 3Y

  • 5Y

QuantumSi Inc investment value today

Current value as on today

₹73,875

Returns

-₹26,125

(-26.13%)

Returns from QuantumSi Inc Stock

-₹31,707 (-31.71%)

Dollar Impact

₹5,582 (+5.58%)

Analyst Recommendation on QuantumSi Inc Stock

Based on 6 analysts

BUY

66.67%

Buy

33.33%

Hold

0.00%

Sell

Based on 6 analysts, 66.67% of analysts recommend a 'BUY' rating for QuantumSi Inc. Average target price of $2.5

QuantumSi Inc Share Price Target

Get share price movements and forecasts by analysts on QuantumSi Inc.

What analysts predicted

66.4%UPSIDE

Target Price

$2.5

Current Price

$0.84

Analyzed by

6 Analysts

Target

$2.50

QuantumSi Inc target price $2.5, a slight upside of 66.4% compared to current price of $0.84. According to 6 analysts rating.

QuantumSi Inc Stock’s Investor Sentiment and Interest

Investment in QuantumSi Inc Shares on INDmoney has dropped by -14.70% over the past 30 days, indicating reduced transactional activity.

Time period: to

Change:-14.70% versus previous 30 day period

Search interest for QuantumSi Inc Stock has decreased by -46% in the last 30 days, reflecting a downward trend in search activity.

Time period: to

Change:-46% versus previous 30 day period

QuantumSi Inc Quarterly Profit & Loss

All numbers in Millions USD

Sep 2023
Dec 2023
Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Total Revenue
0
0
0
0
0
1
0
0
0
0
Gross Profit
0
0
0
0
0
0
0
0
0
-4
Operating Income
-27
-27
-23
-26
-28
-30
-25
-30
-39
-21
EBITDA
-26
-11
-22
-25
-26
-29
-24
-25
-34
-19
Interest Expense
-
2
-
-
-
-
-
-
-
-
Depreciation
1
1
1
1
1
0
0
1
1
1
Income Before Tax
-24
-22
-19
-23
-25
-33
-19
-28
-35
-17
Income Tax Expense
-2
11
1
-
0
0
0
0
0
0
Net Income
-24
-22
-19
-23
-25
-33
-19
-28
-35
-17
Net Profit Margin
-11088.79%
-5512.00%
-4261.27%
-3713.67%
-3216.39%
-2778.61%
-2278.98%
-4879.19%
-6467.93%
-3904.88%

QuantumSi Inc Annual Profit & Loss

All numbers in Millions USD

Dec 2019
Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Total Revenue
-
-
-
0
1
3
2
Gross Profit
-
0
-1
-2
0
1
-3
Operating Income
-36
-36
-96
-123
-111
-108
-97
EBITDA
-35
-35
-93
-111
-91
-103
-92
Interest Expense
-
0
0
13
-
-
-
Depreciation
0
0
1
2
3
4
4
Income Before Tax
-35
-36
-94
-132
-95
-100
-101
Income Tax Expense
0
0
-6
8
0
0
0
Net Income
-35
-36
-94
-132
-95
-101
-101
Net Profit Margin
0.00%
0.00%
0.00%
-28854.47%
-8868.76%
-3303.04%
-4160.06%

QuantumSi Inc Quarterly Cash Flow

All numbers in Millions USD

Dec 2023
Mar 2024
Jun 2024
Sep 2024
Dec 2024
Mar 2025
Jun 2025
Sep 2025
Dec 2025
Net Income
-22
-19
-23
-25
-33
-19
-28
-35
-17
Operating Cash Flow
-20
-23
-18
-23
-22
-26
-20
-32
-16
Investing Cash Flow
61
-57
24
5
-5
-34
5
-6
7
Financing Cash Flow
0
0
0
0
35
48
0
46
0
Change in Cash
40
-80
6
-17
6
-11
-15
8
-9

QuantumSi Inc Annual Cash Flow

All numbers in Millions USD

Dec 2020
Dec 2021
Dec 2022
Dec 2023
Dec 2024
Dec 2025
Net Income
-36
-94
-132
-95
-101
-101
Operating Cash Flow
-32
-66
-90
-94
-87
-94
Investing Cash Flow
0
-450
137
143
-32
-28
Financing Cash Flow
37
516
1
0
35
95
Change in Cash
3
-1
48
49
-84
-27

Global Institutional Holdings in QuantumSi Inc

Funds
Holdings
Bank of New York Mellon Corp
0.18%
Jane Street Group LLC
0.74%
BlackRock Inc
5.23%
Vanguard Group Inc
4.44%
Two Sigma Investments LLC
0.64%

Insights on QuantumSi Inc

Insights help you understand the recent movement of the company's critical parameters, giving you an overall view of the company.

  • imgNO EFFECT

    Against Peers

    img

    In the last 1 year, Edwards Lifesciences Corp. has given 11.8% return, outperforming this stock by 47.7%

  • imgNO EFFECT

    Against Peers

    img

    In the last 3 years, Quantum-si Inc has experienced a drawdown of -48.1%, however Boston Scientific Corp. resisted the overall trend and outperformed by 40.7%

  • imgNEGATIVE IMPACT

    Price Dip

    img

    In the last 1 month, QSI stock has moved down by -16.9%

About QuantumSi Inc

Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS). The company offers Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid level resolution, and automated data analysis; library preparation kits to prepare a customer's protein sample for sequencing; and sequencing kits, which contain the reagents and consumables used to perform NGPS. It also provides Platinum analysis software, a cloud-based solution that automates data analysis workflows and visualizes the sequencing results. The company was founded in 2013 and is headquartered in Branford, Connecticut.
OrganisationQuantumSi Inc
Headquarters29 Business Park Drive, Branford, CT, United States, 06405
IndustryMedical Devices
CEOMr. Jeffrey Alan Hawkins
E-voting on sharesClick here to vote

Key Management of QuantumSi Inc

Name

Title

Mr. Jeffrey Alan Hawkins

President, CEO & Director

Dr. Jonathan M. Rothberg Ph.D.

Founder & Executive Director

Mr. Jeffry R. Keyes CPA

CFO & Treasurer

Dr. John S. Vieceli Ph.D.

Chief Product Officer

Mr. Todd Rearick

Chief Technology Officer

Dr. Christian Lapointe J.D., Ph.D.

General Counsel & Corporate Secretary

Ms. Lindsay Thompson

Chief Human Resources Officer

FAQs

What is QuantumSi Inc share price today?

QuantumSi Inc share price today is $0.84 as on at the close of the market. QuantumSi Inc share today touched a day high of $0.86 and a low of $0.8.

What is the 52 week high and 52 week low for QuantumSi Inc share?

QuantumSi Inc share touched a 52 week high of $3.1 on and a 52 week low of $0.69 on . QuantumSi Inc stock price today i.e. is closed at $0.84,which is 72.90% down from its 52 week high and 21.53% up from its 52 week low.

What is QuantumSi Inc's market capitalisation today?

QuantumSi Inc market capitalisation is $0.00T as on .

How to invest in QuantumSi Inc Stock (QSI) from India?

  1. Step 1: Open a free US stocks account on INDmoney App and transfer your Rupees into Dollars to your INDmoney US stocks account. For a step by step instruction, check How to Transfer Money to Your US Stocks Account .
  2. Step 2: Search for QuantumSi Inc on INDmoney app. Click on Buy button. You can invest as low as $1.5 in QuantumSi Inc Shares that will get you 1.7857 shares as per QuantumSi Inc share price of $0.84 per share as on April 15, 2026 at 1:29 am IST.

What is the minimum amount required to buy QuantumSi Inc Stock (QSI) from India?

Indian investors can start investing in QuantumSi Inc (QSI) shares with as little as ₹93.082 or $1 (as of ) using the INDmoney app.
For example: If you want to invest $10 or ₹930.82 in QuantumSi Inc stock (as per the Rupee-Dollar exchange rate as on ). Based on QuantumSi Inc share’s latest price of $0.84 as on April 15, 2026 at 1:29 am IST, you will get 11.9048 shares of QuantumSi Inc. Learn more about fractional shares .

What are the returns that QuantumSi Inc has given to Indian investors in the last 5 years?

QuantumSi Inc stock has given -92.93% share price returns and 24.21% dollar appreciation to an Indian investor in the last 5 years.
Read more about How do Currency Exchange Rates impact your returns on US Stock Investments?