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QuantumSi Inc (QSI)
QuantumSi Inc stock price live, this page displays NASDAQ QSI stock exchange data. View the QSI premarket stock price ahead of the market session or assess the after hours quote. Monitor the latest movements within the QuantumSi Inc real time stock price chart below.
What Is the QuantumSi Inc Stock Price Today?
The QuantumSi Inc stock price today is 1.050.
What Is the Stock Symbol for QuantumSi Inc?
The stock ticker symbol for QuantumSi Inc is QSI.
Is QSI the Same as $QSI?
$QSI is a common way to refer to the QuantumSi Inc ticker symbol in social media, forums, and online discussions. The dollar sign is a shorthand convention used to indicate that it is a stock ticker symbol
What Stock Exchange Does QuantumSi Inc Trade On?
QuantumSi Inc is listed and trades on the NASDAQ stock exchange.
Is QuantumSi Inc a Good Stock to Buy?
Determining whether QuantumSi Inc—or any stock—is a good buy requires comprehensive analysis. To evaluate its potential, users can sign up to InvestingPro, where they can assess the current QuantumSi Inc share price compared with the fair value and other essential metrics.
You can find more details by visiting the additional pages to view historical data, charts, latest news, analysis or visit the forum to view opinions on the QSI quote. (ISIN: US74765K1051)
What Is the QuantumSi Inc Stock Price Today?
The QuantumSi Inc stock price today is 1.050.
What Is the Stock Symbol for QuantumSi Inc?
The stock ticker symbol for QuantumSi Inc is QSI.
Is QSI the Same as $QSI?
$QSI is a common way to refer to the QuantumSi Inc ticker symbol in social media, forums, and online discussions. The dollar sign is a shorthand convention used to indicate that it is a stock ticker symbol
What Stock Exchange Does QuantumSi Inc Trade On?
QuantumSi Inc is listed and trades on the NASDAQ stock exchange.
Is QuantumSi Inc a Good Stock to Buy?
Determining whether QuantumSi Inc—or any stock—is a good buy requires comprehensive analysis. To evaluate its potential, users can sign up to InvestingPro, where they can assess the current QuantumSi Inc share price compared with the fair value and other essential metrics.
You can find more details by visiting the additional pages to view historical data, charts, latest news, analysis or visit the forum to view opinions on the QSI quote. (ISIN: US74765K1051)
Fair Value
An estimate of a stock's true price based on valuation models like discounted cash flow, peer valuation multiples, and dividend discount models.
Day's Range
0.899
1.060
52 wk Range
0.691
3.100
Unusual trading volume
1/2
Fair Value
An estimate of a stock's true price based on valuation models like discounted cash flow, peer valuation multiples, and dividend discount models.
Day's Range
0.8991.060
52 wk Range
0.6913.100
Key Statistics
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Open
Volume
Average Vol. (3m)
1-Year Change
Book Value / Share
Fair Value
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Revenue
Net Income
EPS
EPS Growth Forecast
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(N/A)
Dividends Payment Streak
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Return on Assets
Return on Equity
Gross Profit Margin
Price/Book
EBITDA
EV/EBITDA
Beta
Prev. Close
Open
Volume
Average Vol. (3m)
1-Year Change
Book Value / Share
Fair Value
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UnlockMarket Cap
Shares Outstanding
Revenue
Net Income
EPS
EPS Growth Forecast
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N/A
(N/A)
Dividends Payment Streak
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Return on Assets
Return on Equity
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Price/Book
EBITDA
EV/EBITDA
Beta
QSI Scorecard
Company’s Health
Assesses a company's financial position by analyzing its market value, financial ratios, industry benchmarks, and competitors.
UnlockFair Value
An estimate of a stock's true price based on valuation models like discounted cash flow, peer valuation multiples, and dividend discount models.
Unlock PriceTechnical Analysis
Strong Buy
Price Target
2.500
Upside
+138.10%
Members' Sentiments
Bearish
Bullish
ProTips
Tips that distill complex financial data into concise, actionable investment insights.
Quickly burning through cash
- Keyes, Quantum-Si CFO, sells $7246 in QSI stock
- Investing.com
- Vieceli, Quantum-Si CPO, sells $18k in QSI stock
- Investing.com
Technical Analysis
Summary
Strong Sell
Sell
Neutral
Buy
Strong Buy
Strong Buy
Technical Indicators
Strong Buy
Moving Averages
Strong Buy
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.
QuantumSi Inc Earnings Call Summary for Q4/2025
- QuantumSi reported Q4 2025 EPS of -$0.08, beating estimates of -$0.12, but revenue of $451K missed forecasts by 40.81% at $761.9K.
- Company set 2026 revenue guidance at approximately $1M, calling it a transition year focused on long-term platform adoption over near-term sales.
- Proteus platform development remains on track for late 2026 launch, positioned as key strategic growth driver amid capital sales headwinds.
- Gross margin of 27% reflected higher consumable revenue mix; company maintains strong cash position to support operations and development.
- Stock rose 2.11% in regular trading on EPS beat but fell 0.39% aftermarket; challenges include NIH funding delays and tariff uncertainties.
Last Updated: 03/03/2026, 05:43 PM
Read Full TranscriptCompare QSI to Peers and Sector
Metrics to compare | QSI | Sector Sector - Average of metrics from a broad group of related Healthcare sector companies | Relationship RelationshipQSIPeersSector | |
|---|---|---|---|---|
P/E Ratio | −2.2x | −1.6x | −0.5x | |
PEG Ratio | −0.07 | −0.01 | 0.00 | |
Price / Book | 1.0x | 2.4x | 2.6x | |
Price / LTM Sales | 93.3x | 1.8x | 3.2x | |
Upside (Analyst Target) | 138.1% | 72.6% | 45.7% | |
Fair Value Upside | Unlock | 3.9% | 4.8% | Unlock |
Analyst Ratings
2 Buy
1 Hold
0 Sell
Ratings:
3 analysts
Overall Consensus
Buy
Analysts 12-Month Price Target:
Average 2.500
(+138.10% Upside)
Earnings
Latest Release
Mar 03, 2026
EPS / Forecast
-0.08 / -0.12
Revenue / Forecast
451K / 761.9K
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FAQ
What Is the QuantumSi (QSI) Stock Price Today?
The QuantumSi stock price today is 1.050 USD.
What Stock Exchange Does QuantumSi Trade On?
QuantumSi is listed and trades on the Nasdaq Stock Exchange.
What Is the Stock Symbol for QuantumSi?
The stock symbol for QuantumSi is "QSI."
What Is the QuantumSi Market Cap?
As of today, QuantumSi market cap is 227.190M USD.
What Is QuantumSi's Earnings Per Share (TTM)?
The QuantumSi EPS (TTM) is -0.512.
When Is the Next QuantumSi Earnings Date?
QuantumSi will release its next earnings report on May 07, 2026.
From a Technical Analysis Perspective, Is QSI a Buy or Sell?
Based on moving averages and other technical indicators, the daily buy/sell signal is Strong Buy.
How Many Times Has QuantumSi Stock Split?
QuantumSi has split 0 times.
How Many Employees Does QuantumSi Have?
QuantumSi has 145 employees.
What is the current trading status of QuantumSi (QSI)?
As of Apr 16, 2026, QuantumSi (QSI) is trading at a price of 1.050 USD, with a previous close of 0.841 USD. The stock has fluctuated within a day range of 0.899 USD to 1.060 USD, while its 52-week range spans from 0.691 USD to 3.100 USD.
What Is QuantumSi (QSI) Price Target According to Analysts?
The average 12-month price target for QuantumSi is 2.500 USD, with a high estimate of 4 USD and a low estimate of 1 USD. 2 analysts recommend buying the stock, while 0 suggest selling, leading to an overall rating of Buy. The stock has an +138.10% Upside potential.
What Is the QSI Premarket Price?
QSI's last pre-market stock price is 0.910 USD. The pre-market share volume is 410,670.000, and the stock has decreased by 0.069, or 8.230%.
What Is the QSI After Hours Price?
QSI's last after hours stock price is 1.080 USD, the stock has decreased by 0.030, or 2.860%.
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