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Quantum Computing Inc
Photonic quantum computing and reservoir computing hardware.
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QUBT key data
About Quantum Computing Inc
Quantum Computing Inc is an integrated photonics and non-linear quantum optics company to develop and deliver machines for quantum computing, reservoir computing, and remote sensing, imaging, and cybersecurity applications based on patented and proprietary photonics technology. Its products are designed to operate at room temperature and low power at an affordable cost. The Company's portfolio of core technologies and products offers capabilities in the areas of high-performance computing, artificial intelligence, and cybersecurity, as well as remote sensing applications.
Quantum Computing Inc websiteQUBT price chart
Daily open, high, low and close with volume.
Quotes are delayed at least 15 minutes.
QUBT technical indicators
Computed daily from QUBT's own price history — not third-party ratings. Technical analysis describes past price behaviour; it is information, not investment advice.
Fibonacci retracement
Based on QUBT's high/low over the same history as the chart above.
QUBT annual investment, R&D and cash flow
Quarterly highlights and original SEC reports
Verified annual USD facts from SEC filings. Collected .
| Annual period | Revenue | Cash capex | Productive asset purchases | Operating cash flow | Free cash flow | R&D | R&D / revenue |
|---|---|---|---|---|---|---|---|
| to | $682,000 | $6.69 million | Not available | -$30.29 million | -$36.98 million | $20.47 million | 3001.9% |
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Revenues · 10-K filed · accession 0001213900-26-022417
NetCashProvidedByUsedInOperatingActivities · 10-K filed · accession 0001213900-26-022417
PaymentsToAcquirePropertyPlantAndEquipment · 10-K filed · accession 0001213900-26-022417
ResearchAndDevelopmentExpense · 10-K filed · accession 0001213900-26-022417
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| to | $373,000 | $6.04 million | Not available | -$16.21 million | -$22.25 million | $11.32 million | 3034.3% |
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Revenues · 10-K filed · accession 0001213900-26-022417
NetCashProvidedByUsedInOperatingActivities · 10-K filed · accession 0001213900-26-022417
PaymentsToAcquirePropertyPlantAndEquipment · 10-K filed · accession 0001213900-26-022417
ResearchAndDevelopmentExpense · 10-K filed · accession 0001213900-26-022417
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| to | $358,000 | $2.11 million | Not available | -$18.32 million | -$20.43 million | $8.89 million | 2483.5% |
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Revenues · 10-K filed · accession 0001213900-26-022417
NetCashProvidedByUsedInOperatingActivities · 10-K filed · accession 0001213900-26-022417
PaymentsToAcquirePropertyPlantAndEquipment · 10-K filed · accession 0001213900-26-022417
ResearchAndDevelopmentExpense · 10-K filed · accession 0001213900-26-022417
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| to | $136,000 | $870,000 | Not available | -$15.38 million | -$16.25 million | $5.22 million | 3835.3% |
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Revenues · 10-K/A filed · accession 0001213900-24-077754
NetCashProvidedByUsedInOperatingActivities · 10-K/A filed · accession 0001213900-24-077754
PaymentsToAcquirePropertyPlantAndEquipment · 10-K/A filed · accession 0001213900-24-077754
ResearchAndDevelopmentExpense · 10-K/A filed · accession 0001213900-24-077754
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SEC filing data: definitions, coverage and revisions
Source: the SEC Company Facts API, using standard US GAAP facts in USD from annual 10-K, 20-F or 40-F filings and amendments. Periods must span 300-400 days. Quarterly and year-to-date values are not presented as annual totals.
- Cash capex is cash payments to acquire property, plant and equipment. It excludes broader acquisition or intangible-asset tags and is not total AI spending or an estimate of finance-lease investment.
- Productive asset purchases are a separately reported, broader cash investment measure. They are shown in their own column and never substituted into PP&E capex, capital intensity or free cash flow. Do not rank mixed definitions as if they were identical.
- Free cash flow here is operating cash flow minus cash capex. It may differ from a company's adjusted free cash flow definition. If either input is missing, the result is omitted.
- R&D intensity is reported research and development expense divided by revenue from the same annual reporting period. Operating cash margin and capital intensity use the same-period revenue denominator.
- Figures are company-wide, not AI-specific or segment-level. Financial years differ, so compare the displayed start and end dates rather than assuming calendar-year alignment.
- The latest available filing for each supported fact is used, including restated comparative figures. Conflicting values from equally recent reports are omitted. Every figure retains its XBRL tag, accession and filing date.
Company-specific extension tags, IFRS-only data and unsupported definitions are not estimated. Missing standard facts are shown as unavailable, not zero. Data is refreshed in the background; the collection time is separate from the filing date.
QUBT vs. related companies
Compare reported revenue growth, profitability and valuation. Related companies can have different business models and fiscal calendars.
| Company | Latest close | Revenue growth (YoY) | Net margin (TTM) | P/E (TTM) | P/S (TTM) |
|---|---|---|---|---|---|
| Quantum Computing Inc (QUBT) | $6.31 | — | — | — | — |
| NVIDIA (NVDA) | $221.30 | — | — | — | — |
| Rigetti Computing (RGTI) | $11.68 | — | — | — | — |
| Rigetti Computing (RGTI) | $11.68 | — | — | — | — |
Related companies are drawn from our coverage universe and may operate in different industries. Prices reflect the latest available market close.
About the data and comparisons
Stock prices reflect the latest available market close. Market capitalisation and financial results may have different reporting dates; refer to the dates shown when comparing companies.
- Revenue growth compares the latest fiscal quarter with the same fiscal quarter a year earlier. Missing or ambiguous comparison periods are not estimated.
- TTM means trailing twelve months. Comparisons require four reported quarters with consistent USD units; unknown or other currencies are not converted or mixed. Net margin is TTM net income divided by TTM revenue.
- P/E uses the displayed close divided by TTM diluted EPS and is omitted for non-positive earnings. P/S uses reference market capitalisation divided by positive TTM revenue; it is not enterprise value to sales.
- Financial figures cover the whole company unless a business segment is specified. Inclusion in an AI theme does not indicate the share of revenue generated by AI.
- Fiscal calendars and reporting dates differ. Check each row's period end and filing date before comparing. Missing values are shown as —, not zero; funds do not receive operating-company ratios.
Theme membership is editorial, not an investment recommendation or a complete market universe. Compare similar business models and verify financial statements through the company website linked on each stock page.
QUBT newsflow
Market-moving headlines mentioning Quantum Computing Inc.
QUBT frequently asked questions
What is the QUBT stock price today?
Quantum Computing Inc (QUBT) last closed at $6.31 on October 14, 2026. Quotes are delayed at least 15 minutes.
What is the 52-week range for QUBT?
Over the past 52 weeks QUBT has traded between $6.18 and $23.79.
What is Quantum Computing Inc's market cap?
Quantum Computing Inc has a market capitalisation of about $1.56 billion.
Which exchange is QUBT listed on?
QUBT trades on NASDAQ, in the Services-Prepackaged Software industry.
Is QUBT overbought or oversold?
QUBT's 14-day relative strength index (RSI) is 21.1, which is oversold on the standard 30/70 scale. RSI measures the speed of recent price moves, not a price target — this is not investment advice.
Is QUBT in an uptrend or downtrend?
QUBT's 50-day moving average is currently below its 200-day moving average — a Death Cross (bearish long-term trend) in classic technical-analysis terms. Moving-average crossovers describe past price behaviour, not a forecast.
QUBT sectors
Others in Quantum computing
Related stocks
Coverage is for information only and is not investment advice. Stock prices can move quickly and past performance does not guarantee future results.
Quotes are delayed at least 15 minutes. Last updated .