Quantum-Si Inc (QSI) Stock Price, Quote & News

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 interfac...

Industry: Medical Devices

Sector: Healthcare

Phone: 866 688 7374

Website: www.quantum-si.com

Address:

29 Business Park Drive, Branford, United States

LarryStreamingPlay Jan. 25 at 7:40 PM

We give the alerts before any paid services...Really this server should be paid. Instead, I pay for the system and it's yours to use free. Join us if you want the newest plays at the time they are in play and before they've already run...without you. Do not pay to be late. Do not subscribe to lose. Barely red: $QSI $CRVO $WAI $QUBT

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Gsmittypoos Jan. 25 at 7:31 PM

$QSI this would be higher if the market wasn’t dirt right now.

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Auto_MA_T_Ka Jan. 25 at 6:48 PM

Quantum-Si $QSI sliced through its 2 lower daily MA resistance lines of the triad and stopped by the upper line, the 40-day EMA. -- 📉BEST Respected MA S&R Lines📈

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naziLivesDontMatter Jan. 23 at 7:58 PM

$QSI

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Runamuk Jan. 23 at 4:52 PM

$QSI DARPA PROSE Phase I awards: Anticipated for early 2026. https://www.darpa.mil/research/programs/protein-sequencing-prose

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JJD22 Jan. 22 at 9:06 PM

$QSI what’s going on at $1.32?

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DeerJuice Jan. 22 at 9:02 PM

$QSI Good close.

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Spartan498 Jan. 22 at 8:55 PM

$QSI Are we finally going to start holding some gains/momentum? 💪🏽

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tyco28 Jan. 22 at 7:50 PM

$QSI 😇😇😇 having a good day and hope for many more

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naziLivesDontMatter Jan. 22 at 6:22 PM

$QSI havent broken over the level id like to see, but i am stoked to see it holding here

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Quantum-Si Announces Launch of New Version 3 Library Preparation Kit and a Suite of Data Analysis Tool Enhancements

Dec 15, 2025, 6:00 PM EST - 5 weeks ago

Quantum-Si Announces Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)

Nov 20, 2025, 8:00 AM EST - 2 months ago

Quantum-Si Highlights Significant Development Advancements for Proteus™ and Industry Leading Technology Pipeline at Investor & Analyst Day

Nov 19, 2025, 6:43 PM EST - 2 months ago

Quantum-Si incorporated (QSI) Analyst/Investor Day Transcript

Nov 19, 2025, 8:00 AM EST - 2 months ago

Quantum-Si to Highlight Significant Proteus™ Platform Development Progress and Provide Insights into the Company's Industry Leading Technology Pipeline at Investor & Analyst Day

Nov 5, 2025, 11:01 PM EST - 2 months ago

Quantum-Si incorporated (QSI) Q3 2025 Earnings Call Transcript

Nov 5, 2025, 4:05 PM EST - 2 months ago

Quantum-Si Reports Third Quarter 2025 Financial Results

Oct 20, 2025, 8:00 AM EDT - 3 months ago

Quantum-Si to Participate in the Canaccord Genuity MedTech, Diagnostics and Digital Health & Services Forum

Oct 13, 2025, 8:00 AM EDT - 3 months ago

Quantum-Si to Report Third Quarter 2025 Financial Results on November 5, 2025

Sep 23, 2025, 8:00 AM EDT - 4 months ago

Quantum-Si to Host Investor & Analyst Event in New York City on November 19, 2025

Sep 8, 2025, 8:00 AM EDT - 5 months ago

Quantum-Si Announces the Launch of V4 Sequencing Kit, Expanding Proteome Coverage and Unlocking New Applications for Protein Sequencing

Aug 19, 2025, 8:00 AM EDT - 5 months ago

Quantum-Si to Participate in the H.C. Wainwright 27th Annual Global Investment Conference

Aug 8, 2025, 8:00 AM EDT - 6 months ago

Quantum-Si to Participate in the UBS Precision Medicine Frontiers Summit

Aug 5, 2025, 7:54 PM EDT - 6 months ago

Quantum-Si incorporated (QSI) Q2 2025 Earnings Call Transcript

Aug 5, 2025, 4:05 PM EDT - 6 months ago

Quantum-Si Reports Second Quarter 2025 Financial Results

Jul 23, 2025, 7:30 AM EDT - 6 months ago

Quantum-Si Stock: A Small Position Is Warranted (Technical Analysis)

Jul 21, 2025, 8:00 AM EDT - 6 months ago

Quantum-Si to Participate in the Canaccord Genuity 45th Annual Growth Conference

Jul 14, 2025, 8:00 AM EDT - 7 months ago

Quantum-Si to Report Second Quarter 2025 Financial Results on August 5, 2025

Jul 7, 2025, 8:19 AM EDT - 7 months ago

Tesla, Quantum-Si And Other Big Stocks Moving Lower In Monday's Pre-Market Session

TSLA

Jul 3, 2025, 8:34 PM EDT - 7 months ago

Quantum-Si Incorporated Announces Pricing of $50 Million Registered Direct Offering of Common Stock

Jun 24, 2025, 8:00 AM EDT - 7 months ago

Quantum-Si Platinum® Pro Instrument Placed at the Broad Institute to Support Regional Research Initiatives

Jun 19, 2025, 8:00 AM EDT - 7 months ago

Quantum-Si to Join Leading Experts from DNAnexus, Olink, and Northwestern in Upcoming GenomeWeb Webinar on Proteomics Data Integration and Standardization

Jun 17, 2025, 8:00 AM EDT - 7 months ago

Quantum-Si Customer to Showcase Protein Barcoding for Nucleic Acid–LNP Therapeutic Development at Festival of Genomics Boston

Jun 10, 2025, 8:00 AM EDT - 8 months ago

Quantum-Si's Single-Molecule Tech Enables Precise, Multiplexed Measurement of Nanobody Binding in a Single Assay

May 22, 2025, 7:30 AM EDT - 8 months ago

Quantum-Si: Sell On Weak Prospects And Risk Of Further Dilution

May 15, 2025, 8:24 PM EDT - 9 months ago

Quantum-Si incorporated (QSI) Q1 2025 Earnings Call Transcript

May 15, 2025, 4:05 PM EDT - 9 months ago

Quantum-Si Reports First Quarter 2025 Financial Results

May 12, 2025, 8:00 AM EDT - 9 months ago

Dr. Gloria Sheynkman from the University of Virginia to Present Pioneering Research utilizing Quantum-Si's Next-Gen Protein Sequencing™ Platform in Upcoming Nature Webinar on May 15

Apr 24, 2025, 8:00 AM EDT - 9 months ago

Quantum-Si to Report First Quarter 2025 Financial Results on May 15, 2025

Mar 26, 2025, 8:00 AM EDT - 10 months ago

Quantum-Si Begins Shipping Platinum® Pro, Advancing Accessibility in Next-Gen Protein Sequencing™

Mar 24, 2025, 6:01 AM EDT - 11 months ago

Quantum-Si to Participate in DNAnexus Webinar on Large Scale Proteomics in Multi-Omics Research

Mar 11, 2025, 12:24 AM EDT - 11 months ago

Quantum-Si: A Rose, By Any Other Name, Wouldn't Smell As Sweet

Mar 3, 2025, 7:42 PM EST - 11 months ago

Quantum-Si incorporated (QSI) Q4 2024 Earnings Call Transcript

Mar 3, 2025, 4:05 PM EST - 11 months ago

Quantum-Si Reports Fourth Quarter and Full Year 2024 Financial Results

Feb 18, 2025, 4:05 PM EST - 1 year ago

Quantum-Si's Customers and Researchers to Showcase Next-Generation Protein Sequencing™ at AGBT 2025

Feb 13, 2025, 8:00 AM EST - 1 year ago

Quantum-Si and Researchers to Showcase Next-Generation Protein Sequencing™ at US HUPO 2025

Feb 12, 2025, 8:00 AM EST - 1 year ago

Quantum-Si to Report Fourth Quarter and Full Year 2024 Financial Results on March 3, 2025

Feb 4, 2025, 8:00 AM EST - 1 year ago

Quantum-Si Establishes Scientific Advisory Board to Shape Next-Generation Proteomic Technologies

Jan 28, 2025, 8:00 AM EST - 1 year ago

Quantum-Si and IDEX Health & Science to Partner on Optics Module for Proteus™ Instrument

Jan 20, 2025, 8:00 AM EST - 1 year ago

Quantum-Si Showcases Advances in Multiomics at the Festival of Genomics UK

Jan 13, 2025, 8:00 AM EST - 1 year ago

Quantum-Si Launches Platinum® Pro: The End-to-End Solution for Deeper Insights in Proteomics

Jan 8, 2025, 8:00 AM EST - 1 year ago

Quantum-Si's New Preprint Showcases Protein Barcoding as a Powerful Tool for Transforming Proteomics

Jan 7, 2025, 9:30 AM EST - 1 year ago

Quantum-Si's 327% Rally In Six Months: Is Nvidia The Catalyst For More Gains?

NVDA

Dec 29, 2024, 9:30 AM EST - 1 year ago

Quantum-Si: The Technical Picture Has Improved (Rating Upgrade)

Dec 27, 2024, 3:11 AM EST - 1 year ago

RGTI, QSI, QMCO, IONQ stocks are surging: time to short them?

IONQ QMCO RGTI

Dec 20, 2024, 8:00 AM EST - 1 year ago

Quantum-Si's New Preprint Showcases Advances in Protein Variant Detection using ProteoVue™ Software with Next-Generation Protein Sequencing™

Dec 18, 2024, 8:00 AM EST - 1 year ago

Quantum-Si Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4)

Dec 12, 2024, 5:00 AM EST - 1 year ago

Quantum-Si Expands International Distribution Network

Dec 4, 2024, 8:30 AM EST - 1 year ago

Quantum-Si Launches Platinum® New Library Prep Kit, Expanding Access to Next-Generation Protein Sequencing™

Dec 3, 2024, 8:30 AM EST - 1 year ago

Quantum-Si Introduces Protein Barcoding Kit for Multiplexed Protein Screening

LarryStreamingPlay Jan. 25 at 7:40 PM

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Gsmittypoos Jan. 25 at 7:31 PM

$QSI this would be higher if the market wasn’t dirt right now.

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Auto_MA_T_Ka Jan. 25 at 6:48 PM

Quantum-Si $QSI sliced through its 2 lower daily MA resistance lines of the triad and stopped by the upper line, the 40-day EMA. -- 📉BEST Respected MA S&R Lines📈

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naziLivesDontMatter Jan. 23 at 7:58 PM

$QSI

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Runamuk Jan. 23 at 4:52 PM

$QSI DARPA PROSE Phase I awards: Anticipated for early 2026. https://www.darpa.mil/research/programs/protein-sequencing-prose

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JJD22 Jan. 22 at 9:06 PM

$QSI what’s going on at $1.32?

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DeerJuice Jan. 22 at 9:02 PM

$QSI Good close.

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Spartan498 Jan. 22 at 8:55 PM

$QSI Are we finally going to start holding some gains/momentum? 💪🏽

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tyco28 Jan. 22 at 7:50 PM

$QSI 😇😇😇 having a good day and hope for many more

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naziLivesDontMatter Jan. 22 at 6:22 PM

$QSI havent broken over the level id like to see, but i am stoked to see it holding here

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Gsmittypoos Jan. 22 at 5:13 PM

$QSI we are at a snapping point!!!! Going to break through!!!!

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Spartan498 Jan. 22 at 3:16 PM

$QSI

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exd Jan. 22 at 2:54 PM

$QSI I’ve been in and out of this stock for a number of years. It’s ready to pop. They’ve done their work. Market is there.

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naziLivesDontMatter Jan. 22 at 6:02 AM

$QSI would like to see us break over 1.35 soon or I may bail

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DeerJuice Jan. 21 at 9:25 PM

$QSI Weird price action but alright

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Gsmittypoos Jan. 21 at 6:13 PM

$QSI Rothenberg doesn’t have the pull to make this stock soar! So sad

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BlackMantle Jan. 21 at 6:04 PM

$ABAT $DRCT $NIVF $QSI You realize that NIVF is RS’ing this next Monday and the float will be under 1 Million? At this $0.43 price range it would RS at $1.23 and the float under a million. Doesn’t it make more sense to load the junk out of NIVF? This market is weird if no one else realizes the ginormous potential

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Trianglewavetrader Jan. 21 at 5:57 PM

$QSI Looks like gap on chart has been closed. Lets hope we move up quick from here

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Morty752 Jan. 21 at 5:10 PM

$QSI Soon be delisted.

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tievLeaf Jan. 21 at 3:45 PM

$QSI Nuff said, just see this post by ARK recently and tell me if you think this price range of $1 FOR QUANTUM-SI ain't undervalued as fuck. Just FYI, they are categorizing Nurix Therapeutics at the same category with QSI and Nurix is currently at $19. $ILMN $SLS $FEMY $NRIX

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naziLivesDontMatter Jan. 21 at 3:05 PM

$QSI

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Rebooter Jan. 21 at 2:52 PM

$QSI $ARKG $XBI Quantum-Si gets a shoutout from ARK in their Big Ideas 2026 research report. ARK forecasts the Total Addressable Market for Multiomics could reach $1.2 QUADRILLION dollars (that's one million two hundred thousand billions). QSI, one of the leading companies in this space, is currently valued at a minuscule $250 million. Do the math.

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Market Cap	269.36M
Revenue (ttm)	3.06M
Net Income (ttm)	-101.01M
EPS (ttm)	N/A
PE Ratio	0.00
Forward PE	N/A
Profit Margin	-3,300.98%
Debt to Equity Ratio	0.00

Volume	4,115,500
Avg Vol	5,012,654
Day's Range	N/A - N/A
Shares Out	215.49M
Stochastic %K	58%
Beta	2.98
Analysts	Sell
Price Target	$2.67