Symbols / QSI $0.93 -1.26%
QSI Chart
About
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.
Fundamentals
Scroll to Statements| Sector | Healthcare | Industry | Medical Devices | Market Cap | 201.57M |
| Enterprise Value | 45.40M | Income | -101.34M | Sales | 2.44M |
| Book/sh | 1.02 | Cash/sh | 0.75 | Dividend Yield | — |
| Payout | 0.00% | Employees | 145 | IPO | — |
| P/E | — | Forward P/E | -2.52 | PEG | — |
| P/S | 82.75 | P/B | 0.92 | P/C | — |
| EV/EBITDA | -0.49 | EV/Sales | 18.64 | Quick Ratio | 7.33 |
| Current Ratio | 7.64 | Debt/Eq | 1.89 | LT Debt/Eq | — |
| EPS (ttm) | -0.51 | EPS next Y | -0.37 | EPS Growth | — |
| Revenue Growth | -62.20% | Earnings | 2026-05-14 | ROA | -24.58% |
| ROE | -46.52% | ROIC | — | Gross Margin | 47.33% |
| Oper. Margin | -46.77% | Profit Margin | 0.00% | Shs Outstand | 196.43M |
| Shs Float | 178.12M | Short Float | 11.91% | Short Ratio | 5.14 |
| Short Interest | — | 52W High | 3.10 | 52W Low | 0.84 |
| Beta | 3.08 | Avg Volume | 4.61M | Volume | 2.47M |
| Target Price | $2.50 | Recom | Buy | Prev Close | $0.94 |
| Price | $0.93 | Change | -1.26% |
Valuation Models
Price estimates from analyst targets and simple models.
1. Analyst consensus
$2.50
Mean price target
2. Current target
$0.93
Latest analyst target
3. DCF / Fair value
$-4.20
Simplified: (Free Cash Flow ÷ Shares) × 18 (P/FCF multiple). Not a …
Ratings
Current target
$0.93
Low
$1.00
High
$4.00
Mean
$2.50
Latest analyst rating changes
| Date | Action | Analyst | Rating Change | Price Target |
|---|---|---|---|---|
| 2026-03-05 | main | Canaccord Genuity | Hold → Hold | $1 |
| 2025-12-22 | main | Canaccord Genuity | Hold → Hold | $2 |
| 2025-10-27 | main | Canaccord Genuity | Hold → Hold | $2 |
| 2025-09-09 | main | Canaccord Genuity | Hold → Hold | $1 |
| 2025-05-19 | reit | HC Wainwright & Co. | Buy → Buy | — |
| 2025-02-07 | init | Alliance Global Partners | — → Buy | $4 |
| 2025-01-14 | reit | HC Wainwright & Co. | Buy → Buy | $6 |
| 2024-11-21 | main | HC Wainwright & Co. | Buy → Buy | $6 |
| 2024-11-13 | main | Canaccord Genuity | Hold → Hold | $1 |
| 2024-11-13 | reit | HC Wainwright & Co. | Buy → Buy | $4 |
| 2024-05-10 | reit | HC Wainwright & Co. | Buy → Buy | $4 |
| 2024-03-01 | main | HC Wainwright & Co. | Buy → Buy | $4 |
| 2023-12-08 | init | HC Wainwright & Co. | — → Buy | $3 |
| 2023-09-25 | down | Canaccord Genuity | Buy → Hold | $2 |
| 2021-10-20 | init | Canaccord Genuity | — → Buy | $13 |
News
RSS: Latest QSI news- Quantum-Si (QSI) CFO receives 780,847 options and 652,803 RSUs - Stock Titan Mon, 16 Mar 2026 20
- Quantum-Si Incorporated (QSI) Stock Falls on Q4 2025 Earnings - Quiver Quantitative ue, 03 Mar 2026 08
- Paula Dowdy Acquires 109,890 Shares of Quantum-Si (NASDAQ:QSI) Stock - MarketBeat Mon, 09 Mar 2026 10
- Quantum-Si (QSI) CPO Vieceli awarded options and 391,681 RSUs - Stock Titan Mon, 16 Mar 2026 20
- Quantum-Si (NASDAQ:QSI) shareholders have endured a 89% loss from investing in the stock five years ago - Yahoo Finance Mon, 05 Jan 2026 08
- Quantum-Si (NASDAQ:QSI) adds US$32m to market cap in the past 7 days, though investors from five years ago are still down 88% - simplywall.st Fri, 09 Jan 2026 08
- LaPointe, Quantum-Si GC, sells $15k in QSI stock - Investing.com Mon, 22 Dec 2025 08
- Quantum-Si Reports Fourth Quarter and Full Year 2025 Financial Results - Business Wire ue, 03 Mar 2026 21
- Quantum-Si Shares Slip After Q4 Revenue Miss - Quantum-Si (NASDAQ:QSI) - Benzinga ue, 03 Mar 2026 08
- Proteomics firm Quantum-Si hands new hires 88,781 stock units - Stock Titan Fri, 13 Mar 2026 20
- Insider Buying: Quantum-Si (NASDAQ:QSI) Director Buys 500,000 Shares of Stock - MarketBeat Mon, 09 Mar 2026 07
- Quantum-Si (QSI): Evaluating Valuation After $300 Million Shelf Registration Sparks Investor Debate - Yahoo Finance ue, 14 Oct 2025 07
- $QSI stock is down 9% today. Here's what we see in our data. - Quiver Quantitative ue, 04 Nov 2025 15
- Dowdy Paula, director at Quantum-Si, buys $104,450 in stock - Investing.com Mon, 09 Mar 2026 07
- Quantum-Si incorporated's (NASDAQ:QSI) 21% loss last week hit both individual investors who own 49% as well as institutions - Yahoo Finance Mon, 10 Nov 2025 08
Insider Transactions
| Date | Shares | Value | Url | Text | Insider | Position | Transaction | Start Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|
| 0 | 500000 | 459800 | — | Purchase at price 0.92 per share. | KUMMETH CHARLES R | Director | — | 2026-03-05 00:00:00 | D |
| 1 | 109890 | 104450 | — | Purchase at price 0.95 per share. | DOWDY PAULA | Director | — | 2026-03-05 00:00:00 | D |
| 2 | 23707 | 30250 | — | Sale at price 1.28 per share. | HAWKINS JEFFREY ALAN | Chief Executive Officer | — | 2025-12-22 00:00:00 | D |
| 3 | 8627 | 11008 | — | Sale at price 1.28 per share. | KEYES JEFFRY R | Chief Financial Officer | — | 2025-12-22 00:00:00 | D |
| 4 | 11951 | 15249 | — | Sale at price 1.28 per share. | LAPOINTE CHRISTIAN | General Counsel | — | 2025-12-22 00:00:00 | D |
| 5 | 21927 | 27979 | — | Sale at price 1.28 per share. | VIECELI JOHN S | Officer | — | 2025-12-22 00:00:00 | D |
| 6 | 26095 | 66281 | — | Sale at price 2.54 per share. | ROTHBERG JONATHAN M | Director and Beneficial Owner of more than 10% of a Class of Security | — | 2025-10-16 00:00:00 | I |
| 7 | 21286 | 35309 | — | Sale at price 1.64 - 1.68 per share. | HAWKINS JEFFREY ALAN | Chief Executive Officer | — | 2025-09-23 00:00:00 | D |
| 8 | 7746 | 12849 | — | Sale at price 1.64 - 1.68 per share. | KEYES JEFFRY R | Chief Financial Officer | — | 2025-09-23 00:00:00 | D |
| 9 | 36964 | 61316 | — | Sale at price 1.64 - 1.68 per share. | BENNETT TODD C | Officer | — | 2025-09-23 00:00:00 | D |
Financials
| Line Item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 |
|---|---|---|---|---|
| TaxEffectOfUnusualItems | -2.91M | -418.74K | 0.00 | 0.00 |
| TaxRateForCalcs | 0.21 | 0.21 | 0.00 | 0.00 |
| NormalizedEBITDA | -79.07M | -101.98M | -121.40M | -93.23M |
| TotalUnusualItems | -13.84M | -1.99M | 14.39M | -18.54M |
| TotalUnusualItemsExcludingGoodwill | -13.84M | -1.99M | 14.39M | -18.54M |
| NetIncomeFromContinuingOperationNetMinorityInterest | -101.34M | -101.01M | -95.96M | -132.44M |
| ReconciledDepreciation | 4.45M | 4.60M | 4.16M | 2.58M |
| ReconciledCostOfRevenue | 1.28M | 1.46M | 594.00K | 0.00 |
| EBITDA | -92.91M | -103.98M | -107.02M | -111.77M |
| EBIT | -97.36M | -108.58M | -111.17M | -114.36M |
| NetInterestIncome | 8.96M | 9.64M | 459.00K | 0.00 |
| InterestExpense | 0.00 | 0.00 | 5.00K | |
| InterestIncome | 8.96M | 9.64M | 459.00K | |
| NormalizedIncome | -90.41M | -99.43M | -110.35M | -113.90M |
| NetIncomeFromContinuingAndDiscontinuedOperation | -101.34M | -101.01M | -95.96M | -132.44M |
| TotalExpenses | 99.80M | 111.63M | 112.25M | 114.36M |
| TotalOperatingIncomeAsReported | -116.10M | -108.58M | -111.17M | -123.84M |
| DilutedAverageShares | 143.20M | 139.25M | 139.26M | 79.58M |
| BasicAverageShares | 143.20M | 139.25M | 139.26M | 79.58M |
| DilutedEPS | -0.71 | -0.68 | -0.95 | -1.19 |
| BasicEPS | -0.71 | -0.68 | -0.95 | -1.19 |
| DilutedNIAvailtoComStockholders | -101.34M | -101.01M | -95.96M | -132.44M |
| NetIncomeCommonStockholders | -101.34M | -101.01M | -95.96M | -132.44M |
| NetIncome | -101.34M | -101.01M | -95.96M | -132.44M |
| NetIncomeIncludingNoncontrollingInterests | -101.34M | -101.01M | -95.96M | -132.44M |
| NetIncomeContinuousOperations | -101.34M | -101.01M | -95.96M | -132.44M |
| TaxProvision | 58.00K | 56.00K | 0.00 | 0.00 |
| PretaxIncome | -101.28M | -100.95M | -95.96M | -132.44M |
| OtherIncomeExpense | -12.88M | -2.01M | 14.75M | -18.08M |
| OtherNonOperatingIncomeExpenses | 955.00K | -19.00K | 366.00K | 458.00K |
| SpecialIncomeCharges | -18.74M | 0.00 | 0.00 | -9.48M |
| OtherSpecialCharges | 18.74M | |||
| ImpairmentOfCapitalAssets | 0.00 | 0.00 | 9.48M | 0.00 |
| GainOnSaleOfSecurity | 4.90M | -1.99M | 14.39M | -9.06M |
| NetNonOperatingInterestIncomeExpense | 8.96M | 9.64M | 459.00K | 0.00 |
| InterestExpenseNonOperating | 0.00 | 0.00 | 5.00K | |
| InterestIncomeNonOperating | 8.96M | 9.64M | 459.00K | |
| OperatingIncome | -97.36M | -108.58M | -111.17M | -114.36M |
| OperatingExpense | 98.51M | 110.18M | 111.66M | 114.36M |
| ResearchAndDevelopment | 53.76M | 59.64M | 67.03M | 72.06M |
| SellingGeneralAndAdministration | 44.75M | 50.53M | 44.63M | 42.30M |
| SellingAndMarketingExpense | 3.96M | |||
| GeneralAndAdministrativeExpense | 46.38M | |||
| OtherGandA | 46.38M | |||
| GrossProfit | 1.15M | 1.60M | 488.00K | 0.00 |
| CostOfRevenue | 1.28M | 1.46M | 594.00K | 0.00 |
| TotalRevenue | 2.44M | 3.06M | 1.08M | 0.00 |
| OperatingRevenue | 2.44M | 3.06M | 1.08M | 0.00 |
| Line Item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 |
|---|---|---|---|---|
| OrdinarySharesNumber | 216.37M | 166.89M | 141.77M | 139.94M |
| ShareIssued | 216.37M | 166.89M | 141.77M | 139.94M |
| TotalDebt | 4.17M | 12.95M | 15.30M | 17.45M |
| TangibleBookValue | 220.23M | 215.42M | 271.09M | 358.71M |
| InvestedCapital | 220.23M | 215.42M | 271.62M | 358.71M |
| WorkingCapital | 152.84M | 199.82M | 254.70M | 342.48M |
| NetTangibleAssets | 220.23M | 215.42M | 271.09M | 358.71M |
| CapitalLeaseObligations | 4.17M | 12.95M | 15.30M | 17.45M |
| CommonStockEquity | 220.23M | 215.42M | 271.62M | 358.71M |
| TotalCapitalization | 220.23M | 215.42M | 271.62M | 358.71M |
| TotalEquityGrossMinorityInterest | 220.23M | 215.42M | 271.62M | 358.71M |
| StockholdersEquity | 220.23M | 215.42M | 271.62M | 358.71M |
| GainsLossesNotAffectingRetainedEarnings | -6.00K | 45.00K | 0.00 | |
| OtherEquityAdjustments | -6.00K | 45.00K | ||
| RetainedEarnings | -697.98M | -596.64M | -495.63M | -399.67M |
| AdditionalPaidInCapital | 918.19M | 812.00M | 767.24M | 758.37M |
| CapitalStock | 22.00K | 18.00K | 14.00K | 14.00K |
| CommonStock | 22.00K | 18.00K | 14.00K | 14.00K |
| PreferredStock | 0.00 | |||
| TotalLiabilitiesNetMinorityInterest | 25.38M | 32.45M | 26.63M | 32.78M |
| TotalNonCurrentLiabilitiesNetMinorityInterest | 2.36M | 14.26M | 15.02M | 17.07M |
| OtherNonCurrentLiabilities | 34.00K | 19.00K | 11.00K | 206.00K |
| DerivativeProductLiabilities | 0.00 | 5.00M | 1.27M | 996.00K |
| LongTermDebtAndCapitalLeaseObligation | 2.32M | 9.25M | 13.74M | 16.08M |
| LongTermCapitalLeaseObligation | 2.32M | 9.25M | 13.74M | 16.08M |
| CurrentLiabilities | 23.02M | 18.19M | 11.61M | 15.71M |
| OtherCurrentLiabilities | 1.07M | 325.00K | 187.00K | 88.00K |
| CurrentDeferredLiabilities | 133.00K | 189.00K | ||
| CurrentDeferredRevenue | 133.00K | 189.00K | ||
| CurrentDebtAndCapitalLeaseObligation | 1.84M | 3.70M | 1.57M | 1.37M |
| CurrentCapitalLeaseObligation | 1.84M | 3.70M | 1.57M | 1.37M |
| PensionandOtherPostRetirementBenefitPlansCurrent | 5.55M | 2.68M | ||
| PayablesAndAccruedExpenses | 19.98M | 13.97M | 9.86M | 14.25M |
| CurrentAccruedExpenses | 17.81M | 10.71M | 8.08M | 10.35M |
| Payables | 2.17M | 3.27M | 1.77M | 3.90M |
| TotalTaxPayable | 549.00K | 1.34M | 7.00K | |
| AccountsPayable | 1.62M | 1.93M | 1.77M | 3.90M |
| TotalAssets | 245.61M | 247.87M | 298.25M | 391.49M |
| TotalNonCurrentAssets | 69.75M | 29.86M | 31.94M | 33.30M |
| OtherNonCurrentAssets | 234.00K | 808.00K | 695.00K | 697.00K |
| InvestmentsAndAdvances | 52.85M | 0.00 | ||
| InvestmentinFinancialAssets | 52.85M | 0.00 | ||
| AvailableForSaleSecurities | 52.85M | |||
| GoodwillAndOtherIntangibleAssets | 0.00 | 532.00K | 0.00 | 9.48M |
| OtherIntangibleAssets | 532.00K | |||
| Goodwill | 0.00 | 9.48M | ||
| NetPPE | 16.66M | 29.05M | 30.71M | 32.61M |
| AccumulatedDepreciation | -16.74M | -11.71M | -10.04M | -6.20M |
| GrossPPE | 33.40M | 40.76M | 40.76M | 38.81M |
| Leases | 11.79M | 7.23M | 6.95M | 1.31M |
| ConstructionInProgress | 1.39M | 4.96M | 2.44M | 6.23M |
| OtherProperties | 18.08M | 26.47M | 29.16M | 29.79M |
| MachineryFurnitureEquipment | 2.14M | 2.10M | 2.21M | 1.48M |
| Properties | 0.00 | 0.00 | 0.00 | 0.00 |
| CurrentAssets | 175.86M | 218.01M | 266.31M | 358.18M |
| OtherCurrentAssets | 4.55M | 3.01M | 4.26M | 6.87M |
| PrepaidAssets | 5.87M | |||
| Inventory | 3.20M | 4.07M | 3.94M | 0.00 |
| FinishedGoods | 950.00K | 565.00K | 1.56M | 0.00 |
| WorkInProcess | 1.79M | 2.21M | 779.00K | 0.00 |
| RawMaterials | 453.00K | 1.29M | 1.61M | 0.00 |
| Receivables | 5.20M | 1.33M | 368.00K | 0.00 |
| OtherReceivables | 4.64M | |||
| AccountsReceivable | 561.00K | 1.33M | 368.00K | 0.00 |
| AllowanceForDoubtfulAccountsReceivable | -270.00K | -124.00K | 0.00 | 0.00 |
| GrossAccountsReceivable | 831.00K | 1.46M | 368.00K | 0.00 |
| CashCashEquivalentsAndShortTermInvestments | 162.91M | 209.60M | 257.74M | 351.31M |
| OtherShortTermInvestments | 141.27M | 160.36M | 123.88M | 266.99M |
| CashAndCashEquivalents | 21.64M | 49.24M | 133.86M | 84.32M |
| Line Item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 |
|---|---|---|---|---|
| FreeCashFlow | -97.23M | -92.44M | -99.31M | -101.30M |
| RepaymentOfDebt | 0.00 | 0.00 | -1.78M | |
| IssuanceOfDebt | 0.00 | 0.00 | ||
| IssuanceOfCapitalStock | 93.51M | 34.79M | 0.00 | 0.00 |
| CapitalExpenditure | -2.52M | -4.64M | -5.27M | -10.74M |
| IncomeTaxPaidSupplementalData | 24.00K | 0.00 | 0.00 | |
| EndCashPosition | 21.64M | 49.24M | 133.86M | 84.32M |
| BeginningCashPosition | 49.24M | 133.86M | 84.32M | 35.78M |
| EffectOfExchangeRateChanges | 12.00K | -25.00K | 0.00 | 0.00 |
| ChangesInCash | -27.61M | -84.59M | 49.54M | 48.53M |
| FinancingCashFlow | 95.42M | 35.88M | 149.00K | 1.91M |
| CashFlowFromContinuingFinancingActivities | 95.42M | 35.88M | 149.00K | 1.91M |
| NetOtherFinancingCharges | 14.00K | -208.00K | -848.00K | -4.00K |
| ProceedsFromStockOptionExercised | 1.91M | 1.07M | 357.00K | 2.76M |
| NetPreferredStockIssuance | 0.00 | 0.00 | ||
| PreferredStockIssuance | 0.00 | 0.00 | ||
| NetCommonStockIssuance | 93.51M | 34.79M | 0.00 | 0.00 |
| CommonStockIssuance | 93.51M | 34.79M | 0.00 | 0.00 |
| NetIssuancePaymentsOfDebt | 0.00 | 0.00 | -1.78M | |
| NetLongTermDebtIssuance | 0.00 | 0.00 | -1.78M | |
| LongTermDebtPayments | 0.00 | 0.00 | -1.78M | |
| LongTermDebtIssuance | 0.00 | 0.00 | ||
| InvestingCashFlow | -28.32M | -32.67M | 143.43M | 137.19M |
| CashFlowFromContinuingInvestingActivities | -28.32M | -32.67M | 143.43M | 137.19M |
| NetInvestmentPurchaseAndSale | -25.80M | -28.03M | 148.70M | 147.93M |
| SaleOfInvestment | 378.78M | 341.40M | 272.51M | 148.76M |
| PurchaseOfInvestment | -404.58M | -369.43M | -123.81M | -834.00K |
| NetBusinessPurchaseAndSale | 0.00 | 0.00 | -4.63M | |
| PurchaseOfBusiness | 0.00 | 0.00 | -4.63M | |
| NetPPEPurchaseAndSale | -2.52M | -4.58M | -4.51M | -10.74M |
| PurchaseOfPPE | -2.52M | -4.58M | -4.51M | -10.74M |
| CapitalExpenditureReported | 0.00 | -59.00K | -763.00K | 0.00 |
| OperatingCashFlow | -94.72M | -87.80M | -94.04M | -90.56M |
| CashFlowFromContinuingOperatingActivities | -94.72M | -87.80M | -94.04M | -90.56M |
| ChangeInWorkingCapital | -4.58M | 4.64M | -3.19M | 3.05M |
| ChangeInOtherCurrentLiabilities | -3.17M | -3.39M | -2.14M | 9.37M |
| ChangeInOtherCurrentAssets | -4.63M | -113.00K | -81.00K | -7.00K |
| ChangeInPayablesAndAccruedExpense | 6.17M | 4.41M | -3.06M | -5.30M |
| ChangeInAccruedExpense | 6.50M | 4.02M | -1.83M | -6.02M |
| ChangeInPayable | -338.00K | 390.00K | -1.22M | 721.00K |
| ChangeInAccountPayable | -338.00K | 390.00K | -1.22M | 721.00K |
| ChangeInPrepaidAssets | -1.56M | 486.00K | 2.16M | -1.00M |
| ChangeInInventory | -2.01M | 4.34M | 286.00K | 0.00 |
| ChangeInReceivables | 626.00K | -1.09M | -368.00K | 0.00 |
| ChangesInAccountReceivables | 626.00K | -1.09M | -368.00K | 0.00 |
| OtherNonCashItems | 5.73M | 2.45M | 1.00M | 1.10M |
| StockBasedCompensation | 10.77M | 8.89M | 8.52M | 11.21M |
| UnrealizedGainLossOnInvestmentSecurities | 0.00 | 0.00 | -10.69M | 16.16M |
| ProvisionandWriteOffofAssets | 146.00K | 124.00K | 0.00 | 0.00 |
| AssetImpairmentCharge | 2.29M | -3.23M | -3.38M | 9.48M |
| AmortizationOfSecurities | -8.02M | -8.40M | 0.00 | 0.00 |
| DepreciationAmortizationDepletion | 4.45M | 4.60M | 4.16M | 2.58M |
| DepreciationAndAmortization | 4.45M | 4.60M | 4.16M | 2.58M |
| Depreciation | 1.04M | |||
| OperatingGainsLosses | -4.17M | 4.15M | 5.52M | -1.71M |
| GainLossOnInvestmentSecurities | -4.20M | 3.72M | 5.38M | -1.80M |
| GainLossOnSaleOfPPE | 31.00K | 425.00K | 136.00K | 91.00K |
| NetIncomeFromContinuingOperations | -101.34M | -101.01M | -95.96M | -132.44M |
SEC Filings
Recent 10-K, 10-Q, 8-K, and Form 4 (insider) filings.
Public Trades for QSI
| Date | User | Broker | Pattern | Type | Position Size | Entry Price | Trade P&L | Status |
|---|