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Side-by-side financial comparison of Arcturus Therapeutics Holdings Inc. (ARCT) and Quantum-Si Inc (QSI). Click either name above to swap in a different company.
Arcturus Therapeutics Holdings Inc. is the larger business by last-quarter revenue ($7.2M vs $451.0K, roughly 16.0× Quantum-Si Inc). On growth, Quantum-Si Inc posted the faster year-over-year revenue change (-62.2% vs -68.4%). Quantum-Si Inc produced more free cash flow last quarter ($-16.4M vs $-74.5M). Over the past eight quarters, Quantum-Si Inc's revenue compounded faster (-0.7% CAGR vs -56.5%).
Arcturus Therapeutics Holdings Inc. is an American RNA medicines biotechnology company focused on the discovery, development and commercialization of therapeutics for rare diseases and infectious diseases. Arcturus has developed proprietary lipid nanoparticle RNA therapeutics for nucleic acid medicines including small interfering RNA (siRNA), messenger RNA (mRNA), gene editing RNA, DNA, antisense oligonucleotides, and microRNA.
Silicon Quantum Computing Pty Ltd (SQC) is a Sydney, Australia-based quantum computing company.
ARCT vs QSI — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $7.2M | $451.0K |
| Net Profit | — | $-17.6M |
| Gross Margin | — | 27.1% |
| Operating Margin | — | -4677.2% |
| Net Margin | — | -3904.9% |
| Revenue YoY | -68.4% | -62.2% |
| Net Profit YoY | 3.1% | 46.8% |
| EPS (diluted) | — | $-0.07 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $7.2M | $451.0K | ||
| Q3 25 | $17.2M | $552.0K | ||
| Q2 25 | $28.3M | $591.0K | ||
| Q1 25 | $29.4M | $842.0K | ||
| Q4 24 | $22.8M | $1.2M | ||
| Q3 24 | $41.7M | $787.0K | ||
| Q2 24 | $49.9M | $622.0K | ||
| Q1 24 | $38.0M | $457.0K |
| Q4 25 | — | $-17.6M | ||
| Q3 25 | $-13.4M | $-35.7M | ||
| Q2 25 | $-9.2M | $-28.8M | ||
| Q1 25 | $-14.1M | $-19.2M | ||
| Q4 24 | $-30.0M | $-33.1M | ||
| Q3 24 | $-6.9M | $-25.3M | ||
| Q2 24 | $-17.2M | $-23.1M | ||
| Q1 24 | $-26.8M | $-19.5M |
| Q4 25 | — | 27.1% | ||
| Q3 25 | — | 35.1% | ||
| Q2 25 | — | 59.4% | ||
| Q1 25 | — | 57.7% | ||
| Q4 24 | — | 51.2% | ||
| Q3 24 | — | 46.6% | ||
| Q2 24 | — | 56.9% | ||
| Q1 24 | — | 58.9% |
| Q4 25 | — | -4677.2% | ||
| Q3 25 | -96.3% | -7205.3% | ||
| Q2 25 | -41.0% | -5096.4% | ||
| Q1 25 | -57.3% | -2982.4% | ||
| Q4 24 | -146.7% | -2573.6% | ||
| Q3 24 | -25.8% | -3569.0% | ||
| Q2 24 | -42.4% | -4252.6% | ||
| Q1 24 | -80.0% | -5111.6% |
| Q4 25 | — | -3904.9% | ||
| Q3 25 | -78.4% | -6467.9% | ||
| Q2 25 | -32.4% | -4879.2% | ||
| Q1 25 | -47.9% | -2279.0% | ||
| Q4 24 | -131.8% | -2778.6% | ||
| Q3 24 | -16.6% | -3216.4% | ||
| Q2 24 | -34.5% | -3713.7% | ||
| Q1 24 | -70.5% | -4261.3% |
| Q4 25 | — | $-0.07 | ||
| Q3 25 | $-0.49 | $-0.17 | ||
| Q2 25 | $-0.34 | $-0.16 | ||
| Q1 25 | $-0.52 | $-0.11 | ||
| Q4 24 | $-1.10 | $-0.23 | ||
| Q3 24 | $-0.26 | $-0.18 | ||
| Q2 24 | $-0.64 | $-0.16 | ||
| Q1 24 | $-1.00 | $-0.14 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $230.9M | $21.6M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $214.0M | $220.2M |
| Total Assets | $271.1M | $245.6M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $230.9M | $21.6M | ||
| Q3 25 | $180.4M | $30.9M | ||
| Q2 25 | $196.5M | $22.2M | ||
| Q1 25 | $216.9M | $37.3M | ||
| Q4 24 | $237.0M | $49.2M | ||
| Q3 24 | $237.2M | $42.3M | ||
| Q2 24 | $260.3M | $59.6M | ||
| Q1 24 | $288.4M | $53.2M |
| Q4 25 | $214.0M | $220.2M | ||
| Q3 25 | $224.6M | $235.2M | ||
| Q2 25 | $231.1M | $221.0M | ||
| Q1 25 | $233.8M | $246.9M | ||
| Q4 24 | $241.0M | $215.4M | ||
| Q3 24 | $261.9M | $210.5M | ||
| Q2 24 | $258.6M | $233.3M | ||
| Q1 24 | $264.0M | $253.8M |
| Q4 25 | $271.1M | $245.6M | ||
| Q3 25 | $282.3M | $260.1M | ||
| Q2 25 | $309.3M | $254.4M | ||
| Q1 25 | $331.8M | $271.2M | ||
| Q4 24 | $344.1M | $247.9M | ||
| Q3 24 | $370.7M | $236.5M | ||
| Q2 24 | $388.6M | $256.7M | ||
| Q1 24 | $418.8M | $275.6M |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $-74.3M | $-16.3M |
| Free Cash FlowOCF − Capex | $-74.5M | $-16.4M |
| FCF MarginFCF / Revenue | -1035.2% | -3628.4% |
| Capex IntensityCapex / Revenue | 3.2% | 3.8% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | $-97.3M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-74.3M | $-16.3M | ||
| Q3 25 | $-17.2M | $-32.0M | ||
| Q2 25 | $-5.8M | $-20.2M | ||
| Q1 25 | $-35.1M | $-26.2M | ||
| Q4 24 | $-284.0K | $-22.9M | ||
| Q3 24 | $-23.8M | $-23.2M | ||
| Q2 24 | $-30.1M | $-18.6M | ||
| Q1 24 | $-5.6M | $-23.2M |
| Q4 25 | $-74.5M | $-16.4M | ||
| Q3 25 | $-17.3M | $-32.9M | ||
| Q2 25 | — | $-20.5M | ||
| Q1 25 | $-35.3M | $-27.5M | ||
| Q4 24 | — | $-24.3M | ||
| Q3 24 | $-23.8M | $-24.1M | ||
| Q2 24 | $-30.5M | $-19.7M | ||
| Q1 24 | $-5.8M | $-24.3M |
| Q4 25 | -1035.2% | -3628.4% | ||
| Q3 25 | -101.1% | -5963.6% | ||
| Q2 25 | — | -3472.8% | ||
| Q1 25 | -120.1% | -3261.4% | ||
| Q4 24 | — | -2039.9% | ||
| Q3 24 | -57.2% | -3065.8% | ||
| Q2 24 | -61.1% | -3164.0% | ||
| Q1 24 | -15.3% | -5307.2% |
| Q4 25 | 3.2% | 3.8% | ||
| Q3 25 | 1.1% | 163.0% | ||
| Q2 25 | 0.0% | 55.3% | ||
| Q1 25 | 0.5% | 155.2% | ||
| Q4 24 | 0.0% | 120.4% | ||
| Q3 24 | 0.2% | 123.9% | ||
| Q2 24 | 0.7% | 181.2% | ||
| Q1 24 | 0.6% | 228.9% |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
