Last 15 quarters of trend data · Technology · Software - Infrastructure
Quarterly valuation ratios — annualised for comparability. YoY Δ shows same-quarter-prior-year change.
| Metric | TTM | Q2 '26 | Q4 '25 | Q2 '25 | Q4 '24 | Q2 '24 | Q4 '23 | Q2 '23 | Q4 '22 | Q2 '22 | Q4 '21 | Q2 '21 | Q4 '20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P/E Ratio → | -9.52 | — | — | — | — | — | — | — | 33.51 | 8.11 | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | |
| P/S Ratio | 719.99 | 88.16 | 319.95 | 113.40 | 41.44 | 247.19 | 30.78 | 2310.46 | — | 88.99 | 23056.75 | — | — |
| — | -64.3% | +939.5% | -95.1% | — | +177.8% | -99.9% | — | — | — | — | — | — | |
| P/B Ratio | 12.34 | 7.71 | 21.76 | 4.77 | 2.44 | 7.67 | 1.15 | 2.19 | 9.38 | 33.72 | — | — | — |
| — | +0.4% | +1796.7% | +117.7% | -74.0% | -77.2% | — | — | — | — | — | — | — | |
| P/FCF | — | — | — | — | — | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | |
| EV / EBITDA | — | — | — | — | — | — | — | — | 5.06 | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | |
| EV / EBIT | — | — | — | — | — | — | — | — | 24.22 | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — |
Quarterly margins and returns. Watch for margin compression across consecutive quarters.
Arqit Quantum Inc.'s operating margin was -4961.6% in Q2 2026, down 249.5 pp QoQ and up 9019.9 pp YoY. The trailing four-quarter average of -6223.2% lags the current quarter, suggesting the recent improvement is above-trend. Gross margin expanded 99.2% YoY, indicating pricing power or improving input costs.
| Metric | TTM | Q2 '26 | Q4 '25 | Q2 '25 | Q4 '24 | Q2 '24 | Q4 '23 | Q2 '23 | Q4 '22 | Q2 '22 | Q4 '21 | Q2 '21 | Q4 '20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gross Margin | -43.4% | -6.7% | 30.9% | 100.0% | -331.0% | -852.9% | 100.0% | -7057.9% | 100.2% | 100.0% | -680.5% | — | — |
| — | +99.2% | -69.1% | +101.4% | -430.4% | -952.9% | +114.7% | — | — | — | — | — | — | |
| Operating Margin | -6636.0% | -4961.6% | -4712.1% | -10591.7% | -4627.6% | -13981.5% | -4790.5% | -133494.7% | -970.0% | -271.1% | -154667.3% | — | — |
| — | +64.5% | +1.6% | +92.1% | -377.1% | -5057.8% | +96.9% | — | — | — | — | — | — | |
| Net Margin | -6668.5% | -5302.1% | -3925.9% | -10217.9% | -3970.7% | -40060.5% | -7819.2% | -114926.3% | -990.7% | 1096.7% | -1109184.3% | — | — |
| — | +86.8% | +49.8% | +91.1% | -300.8% | -3752.9% | +99.3% | — | — | — | — | — | — |
| Metric | TTM | Q2 '26 | Q4 '25 | Q2 '25 | Q4 '24 | Q2 '24 | Q4 '23 | Q2 '23 | Q4 '22 | Q2 '22 | Q4 '21 | Q2 '21 | Q4 '20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ROE | -181.0% | -118.5% | -84.1% | -123.5% | -50.9% | -116.3% | -66.1% | -27.5% | 53.2% | 526.9% | — | — | -122.0% |
| — | -1.9% | -27.2% | -348.9% | -195.6% | -122.1% | — | — | +143.6% | +1145.4% | — | — | — | |
| ROA | -101.6% | -83.5% | -50.3% | -61.2% | -20.2% | -67.3% | -45.3% | -18.3% | 26.8% | 45.2% | -373.8% | -39.2% | -12.2% |
| — | -24.0% | -11.0% | -234.0% | -175.3% | -249.0% | +87.9% | +53.3% | +319.6% | +835.3% | -1753.0% | -273.5% | — | |
| ROIC | — | -1275.9% | — | — | — | -77.3% | -56.9% | -44.6% | 259.9% | — | — | — | -18.0% |
| — | -1550.4% | — | — | — | — | — | — | +1542.7% | — | — | — | — |
Quarterly solvency trend — watch for debt spikes or covenant pressure.
The current ratio has improved 187.9% YoY to 4.88x, strengthening the short-term liquidity position.
| Metric | TTM | Q2 '26 | Q4 '25 | Q2 '25 | Q4 '24 | Q2 '24 | Q4 '23 | Q2 '23 | Q4 '22 | Q2 '22 | Q4 '21 | Q2 '21 | Q4 '20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Debt / Equity | 0.03 | 0.08 | 0.03 | 0.05 | 0.08 | 0.50 | 0.13 | 0.11 | 0.10 | 0.16 | — | — | 5.86 |
| — | -84.8% | -79.1% | -54.4% | -16.0% | +208.3% | — | — | -98.3% | -97.2% | — | — | — | |
| Debt / EBITDA | — | — | — | — | — | — | — | — | 0.23 | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | |
| Current Ratio | 2.69 | 4.88 | 2.69 | 2.45 | 1.94 | 1.70 | 3.22 | 2.20 | 2.38 | 4.88 | 5.29 | 5.29 | 0.06 |
| — | +187.9% | -16.6% | +11.5% | -18.3% | -65.3% | -39.1% | -58.4% | +3829.7% | +7967.0% | +292.0% | +292.0% | — | |
| Quick Ratio | 2.69 | 4.88 | 2.69 | 2.45 | 1.94 | 1.70 | 3.22 | 2.20 | 2.38 | 4.88 | 5.29 | 5.29 | 0.06 |
| — | +187.9% | -16.6% | +11.5% | -18.3% | -65.3% | -39.1% | -58.4% | +3829.7% | +7967.0% | +292.0% | +292.0% | — | |
| Interest Coverage | -782.67 | -657.69 | -924.41 | -684.38 | -14.07 | — | — | -195.72 | 18.90 | -307.30 | -15.65 | -9.34 | -1.89 |
| — | — | — | — | — | — | — | — | — | — | — | — | — |
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Quick answers to the most common questions about buying ARQQ stock.
Arqit Quantum Inc.'s current P/E is -9.5x. Quarterly P/E ratios can vary due to seasonal revenue patterns and one-time charges.
Arqit Quantum Inc.'s current operating margin is -6636.0%. Margins have been compressing over recent quarters. Quarterly margins are particularly useful for identifying trend inflections that annual data smooths over.
Quarterly financial ratios reveal short-term trend shifts — margin compression, debt spikes, or valuation re-ratings — that annual figures smooth over. They're essential for active investors tracking Arqit Quantum Inc.'s business trajectory between earnings reports.