Vieceli, Quantum-Si CPO, sells $28k in shares
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QuantumSi Inc (QSI)
Assess today's live QuantumSi Inc (QSI) share price, performance and insights using our live NASDAQ: QSI stock exchange data.
Analyse the historical data and QuantumSi Inc share price performance charts on this page. Our technical summary section provides analysis on QuantumSi share price buy/sell indicators using real-time data (or discuss the QuantumSi (QSI) stock price today with other investors in the QuantumSi NASDAQ share price and sentiment chat forum).
Use the dropdown to select a relevant stock exchange for the current NASDAQ QSI share price (ISIN: US74765K1051) to enhance your trading decisions with our free investment tools and resources.
What Is the QuantumSi Inc Share Price Today?
The QuantumSi share price today is 1.230.
What Is the Stock Symbol for QuantumSi Inc
The stock symbol (or 'ticker') for QuantumSi Inc is "QSI."
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, investors can sign up to InvestingPro, where they can assess share price, fair value and other essential metrics.
Analyse the historical data and QuantumSi Inc share price performance charts on this page. Our technical summary section provides analysis on QuantumSi share price buy/sell indicators using real-time data (or discuss the QuantumSi (QSI) stock price today with other investors in the QuantumSi NASDAQ share price and sentiment chat forum).
Use the dropdown to select a relevant stock exchange for the current NASDAQ QSI share price (ISIN: US74765K1051) to enhance your trading decisions with our free investment tools and resources.
What Is the QuantumSi Inc Share Price Today?
The QuantumSi share price today is 1.230.
What Is the Stock Symbol for QuantumSi Inc
The stock symbol (or 'ticker') for QuantumSi Inc is "QSI."
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, investors can sign up to InvestingPro, where they can assess share price, fair value and other essential metrics.
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
1.200
1.255
52 wk Range
0.950
5.770
QSI is not included in our AI-picked strategies. See which stocks are.
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
1.2001.255
52 wk Range
0.9505.770
Key Statistics
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Average Volume (3m)
1-Year Change
Book Value / Share
Fair Value
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Return on Equity
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Average Volume (3m)
1-Year Change
Book Value / Share
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QSI Scorecard
Company’s Health
Assesses a company's financial position by analysing 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 Sell
Price Target
2.683
Upside
+118.16%
Members' Sentiments
Bearish
Bullish
ProTips
Tips that distill complex financial data into concise, actionable investment insights.
Quickly burning through cash
- LaPointe, Quantum-Si GC, sells $15k in QSI stock
- Investing.com
- Keyes, Quantum-Si CFO, sells $11k in shares
- Investing.com
- Vieceli, Quantum-Si CPO, sells $28k in shares
- Investing.com
- LaPointe, Quantum-Si GC, sells $15k in QSI stock
- Investing.com
- Keyes, Quantum-Si CFO, sells $11k in shares
- Investing.com
- Hawkins, Quantum-Si CEO, sells $30k in shares
- Investing.com
- Form 144 Quantum-Si Inc For: 22 December
- Investing.com
Technical Analysis
Summary
Strong Sell
Sell
Neutral
Buy
Strong Buy
Strong Sell
Technical Indicators
Strong Sell
Moving Averages
Sell
QuantumSi Company Profile
Quantum-Si incorporated, a life sciences company, engages in the development of single-molecule detection platform to enable Next Generation Protein Sequencing (NGPS). The company offers Platinum NGPS instrument that provides single molecule amino acid level resolution with a streamlined workflow, including automated data analysis that accessible to researchers in all laboratory types; Platinum Pro NGPS instrument, a single molecule amino acid resolution, which provides an enhanced user interface, cloud or on instrument data analysis and an available pro mode; Library preparation kits to prepare protein sample for sequencing; Barcoding Kits to optimize the workflow and performance of technology; and Sequencing Kits contains the reagents and consumables used to perform NGPS on the Platinum or Platinum Pro instrument. It also provides Platinum Analysis Software, a cloud-based solution that automates data analysis workflows and provides a user-friendly interface and visualization of the sequencing results. Its products are used in antibody characterization, biomarker identification, protein identification, protein variants, protein barcoding, and post translational modification analysis applications. Quantum-Si incorporated was founded in 2013 is headquartered in Branford, Connecticut.
QuantumSi Inc Earnings Call Summary for Q3/2025
- QuantumSi reported Q3 2025 EPS of -$0.17 (missing forecast by 30.77%) and revenue of $550,000 (8.23% below expectations), causing a 2.17% stock decline in after-hours trading.
- Despite financial underperformance, the company maintains a strong cash position of $230.5 million and reported nine-month revenue of $2.0 million with a 52% gross margin.
- CEO Jeff Hawkins emphasized the strategic importance of building 'a large install base of active users' while highlighting new product launches and innovations.
- The company faces challenges including capital market headwinds, lengthy 9-12 month sales cycles, and competitive pressures in the sequencing market.
- Management will share new data and strategic milestones during the upcoming Investor Day on November 19th, maintaining optimism despite current market challenges.
Last Updated: 05/11/2025, 22:30
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 | −2.3x | −6.0x | −0.6x | |
PEG Ratio | 1.03 | −0.23 | 0.00 | |
Price/Book | 1.1x | 1.7x | 2.6x | |
Price / LTM Sales | 83.4x | 2.8x | 3.2x | |
Upside (Analyst Target) | 103.3% | 18.6% | 41.8% | |
Fair Value Upside | Unlock | 5.8% | 5.1% | Unlock |
Analyst Ratings
2 Buy
1 Hold
0 Sell
Ratings:
3 analysts
Overall Consensus
Buy
Analysts 12-Month Price Target:
Average 2.683
(+118.16% Upside)
Earnings
Latest Release
Nov 05, 2025
EPS / Forecast
-0.17 / -0.13
Revenue / Forecast
550.00K / 599.33K
People Also Watch
FAQ
What Is the QuantumSi (QSI) Share Price Today?
The live QuantumSi share price today is 1.230
What Stock Exchange Does QuantumSi (QSI) Trade On?
QuantumSi is listed and trades on the Nasdaq Stock Exchange.
What Is the Ticker (Stock Symbol) for QuantumSi?
The stock symbol (also called a 'ticker') for QuantumSi is "QSI."
What Is the Current QuantumSi Market Cap?
As of today, QuantumSi market capitalisation is 265.05M.
What Is QuantumSi's (QSI) Earnings Per Share (TTM)?
The QuantumSi EPS is currently -0.65 (Trailing Twelve Months).
When Is the Next QuantumSi Earnings Date?
QuantumSi's next earnings report will be released on 09 Mar 2026.
Is QSI a Buy or Sell From a Technical Analyst Perspective?
Based on today's QuantumSi moving averages and other technical indicators, the daily buy/sell signal is Strong Sell.
How Many Times Has QuantumSi Stock Split?
QuantumSi has split 0 times. (See the QSI stock split history page for full effective split date and price information.)
How Many Employees Does QuantumSi Have?
QuantumSi has 149 employees.
What is the current trading status of QuantumSi (QSI)?
As of 24 Dec 2025, QuantumSi (QSI) is trading at a price of 1.230, with a previous close of 1.270. The stock has fluctuated within a day range of 1.200 to 1.255, while its 52-week range spans from 0.950 to 5.770.
What Is QuantumSi (QSI) Price Target According to Analysts?
The average 12-month price target for QuantumSi is USD2.68333, with a high estimate of USD4.05 and a low estimate of USD1.5. 2 analysts recommend buying the stock, while 0 suggest selling, leading to an overall rating of Buy. The stock has an +118.16% Upside potential.
What Is the QSI Premarket Price?
QSI's last pre-market stock price is 1.250. The pre-market share volume is 122,980.000, and the stock has decreased by -0.020, or -1.570%.
What Is the QSI After Hours Price?
QSI's last after hours stock price is 1.250, the stock has decreased by 0.020, or 1.630%.
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