Latest Ratios: P/E Ratio -1.8x · EV/EBITDA N/A · ROE -46.5%. (2019–2025 historical series)
Price-based multiples — how expensive the stock is relative to earnings, sales, book value, and cash flow
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Market Cap | $182M | $218M | $387M | $284M | $255M | $626M | $55M | — |
| Enterprise Value | $164M | $200M | $350M | $165M | $188M | $599M | $19M | — |
| P/E Ratio → | -1.80 | — | — | — | — | — | — | — |
| P/S Ratio | 74.67 | 89.30 | 126.43 | 262.49 | — | — | — | — |
| P/B Ratio | 0.83 | 0.99 | 1.79 | 1.05 | 0.71 | 1.31 | 1.51 | — |
| P/FCF | — | — | — | — | — | — | — | — |
| P/OCF | — | — | — | — | — | — | — | — |
P/E links to full P/E history page with 30-year chart
Enterprise-value multiples — capital-structure-neutral measures of total business value
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| EV / Revenue | — | 82.13 | 114.56 | 152.92 | — | — | — | — |
| EV / EBITDA | — | — | — | — | — | — | — | — |
| EV / EBIT | — | — | — | — | — | — | — | — |
| EV / FCF | — | — | — | — | — | — | — | — |
Margins and return-on-capital ratios measuring operating efficiency
Full margin charts and quarterly trend are on the Earnings History page
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Gross Margin | 47.3% | 47.3% | 52.3% | 45.1% | — | — | — | — |
| Operating Margin | -3996.7% | -3996.7% | -3550.6% | -10274.6% | — | — | — | — |
| Net Profit Margin | -4160.1% | -4160.1% | -3303.0% | -8868.8% | — | — | — | — |
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| ROE | -46.5% | -46.5% | -41.5% | -30.4% | -31.7% | -37.0% | -102.3% | -101.0% |
| ROA | -41.1% | -41.1% | -37.0% | -27.8% | -29.6% | -34.9% | -93.9% | -95.7% |
| ROIC | -38.2% | -38.2% | -49.0% | -37.5% | -25.1% | -32.3% | -1593.4% | — |
| ROCE | -43.1% | -43.1% | -42.1% | -33.6% | -28.6% | -36.6% | -100.1% | -103.2% |
Solvency and debt-coverage ratios — lower is generally safer
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Debt / Equity | 0.02 | 0.02 | 0.06 | 0.06 | 0.05 | 0.02 | 0.05 | — |
| Debt / EBITDA | — | — | — | — | — | — | — | — |
| Net Debt / Equity | — | -0.08 | -0.17 | -0.44 | -0.19 | -0.06 | -0.97 | -0.93 |
| Net Debt / EBITDA | — | — | — | — | — | — | — | — |
| Debt / FCF | — | — | — | — | — | — | — | — |
| Interest Coverage | — | — | — | — | — | -18996.80 | -4076.78 | — |
Net cash position: cash ($22M) exceeds total debt ($4M)
Short-term solvency ratios and asset-utilisation metrics
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Current Ratio | 7.64 | 7.64 | 11.99 | 22.94 | 22.81 | 41.39 | 13.75 | 17.57 |
| Quick Ratio | 7.50 | 7.50 | 11.76 | 22.60 | 22.81 | 41.39 | 13.75 | 17.57 |
| Cash Ratio | 7.08 | 7.08 | 11.52 | 22.20 | 22.37 | 40.88 | 13.40 | 17.09 |
| Asset Turnover | — | 0.01 | 0.01 | 0.00 | — | — | — | — |
| Inventory Turnover | 0.40 | 0.40 | 0.36 | 0.15 | — | — | — | — |
| Days Sales Outstanding | — | 84.06 | 159.11 | 124.14 | — | — | — | — |
Earnings, FCF, buyback, and dividend yields — total returns to shareholders
Full dividend history and growth charts are on the Dividend History page
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Dividend Yield | — | — | — | — | — | — | — | — |
| Payout Ratio | — | — | — | — | — | — | — | — |
| Metric | TTM | FY 2025 | FY 2024 | FY 2023 | FY 2022 | FY 2021 | FY 2020 | FY 2019 |
|---|---|---|---|---|---|---|---|---|
| Earnings Yield | — | — | — | — | — | — | — | — |
| FCF Yield | — | — | — | — | — | — | — | — |
| Buyback Yield | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | — |
| Total Shareholder Yield | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | — |
| Shares Outstanding | — | $198M | $143M | $141M | $139M | $80M | $5M | $136M |
Liquidity and adoption headwinds
As reported in recent financial filings, QSI trades at a price-to-sales multiple of 69.42, a valuation that appears disconnected from the company's -20.34% year-over-year revenue decline and suggests investors are pricing in a speculative recovery that remains unsupported by current commercial performance metrics.
The elevated P/S ratio relative to the broader biotech sector implies that the market is assigning significant value to the platform's potential rather than its current output. This valuation warrants caution, as the lack of positive earnings or cash flow makes traditional multiples like P/E or EV/EBITDA inapplicable, leaving investors exposed to significant downside if the growth narrative fails to materialize.
Based on the company's reported figures, ROIC has remained consistently negative, hovering near -9.7% in 2026Q1, which indicates that the firm is currently destroying shareholder value rather than compounding it through its heavy investment in semiconductor-based proteomics technology.
The inability to generate a positive return on capital suggests that the company's R&D and commercialization efforts have yet to reach a threshold of efficiency. Investors should monitor whether management can optimize its capital allocation, as the current trend of decaying returns highlights the difficulty of scaling a high-fixed-cost hardware business in a competitive research market.
According to quarterly data, the cash conversion cycle has remained highly volatile, peaking at 1405 days in 2025Q3, which suggests that the company faces significant challenges in managing its inventory and accounts receivable cycles compared to more mature life science tool manufacturers.
The extremely long cash conversion cycle indicates that capital is being trapped in inventory and slow-moving receivables, further straining the company's limited liquidity. This inefficiency appears structural, reflecting the difficulty of transitioning from a development-stage entity to a commercial-scale operation with a complex, multi-component product offering.
As disclosed in recent financial statements, the current ratio has fluctuated significantly, dropping from 30.65 in 2024Q1 to 12.60 in 2026Q1, which indicates a rapid depletion of the liquidity buffer necessary to sustain ongoing operations without immediate access to external capital markets.
While the current ratio remains numerically high, the absolute decline in cash reserves against persistent operating losses suggests a narrowing runway. This trend warrants close monitoring, as the company's reliance on cash-intensive R&D makes it particularly vulnerable to any disruption in its ability to raise dilutive capital.
The market frequently misapplies the price-to-sales ratio to QSI, which obscures the underlying reality that the company is currently in a pre-scale phase where hardware revenue is often bundled or discounted to drive adoption, rendering top-line figures an unreliable proxy for long-term economic value.
Investors should instead focus on the 'pull-through' rate per instrument and the growth of the installed base, as these metrics provide a clearer picture of the platform's commercial viability. Relying on P/S multiples in this context risks overestimating the company's current market penetration and underestimating the significant costs associated with maintaining its installed base.
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Quick answers to the most common questions about buying QSI stock.
Quantum-Si incorporated's current P/E ratio is -1.8x. This places it at the 50th percentile of its historical range.
Quantum-Si incorporated's return on equity (ROE) is -46.5%. The historical average is -55.8%.
Based on historical data, Quantum-Si incorporated is trading at a P/E of -1.8x. This is at the 50th percentile of its historical P/E range. Compare with industry peers and growth rates for a complete picture.
Quantum-Si incorporated has 47.3% gross margin and -3996.7% operating margin.