AMBARELLA, INC. (AMBA) Spending and interest coverage
- R&D / revenue · 12 months: Value 54.74%; Formula and calculation Research and development expense / revenue. Period ending 2026-07-31..
- Stock-based compensation / revenue · 12 months: Value 21.86%; Formula and calculation Share-based compensation / revenue. Period ending 2026-07-31..
- Interest coverage · 12 months: Value (m); Formula and calculation Estimated: average term debt × dated USD coupon proxy + average commercial paper × matching-currency disclosed rate at or before period end. Swaps, foreign-exchange, lease interest and amortization are not quantified..
Spending and interest coverage
Overview →Financial period ending 2026-07-31; current quote (m). Amounts retain their stated periods and units.
| Metric | Value | Formula and calculation |
|---|---|---|
| R&D / revenue · 12 months | 54.74% | Research and development expense / revenue. Period ending 2026-07-31. $228.69M ÷ $417.80M × 100 ≈ 54.74% |
| Stock-based compensation / revenue · 12 months | 21.86% | Share-based compensation / revenue. Period ending 2026-07-31. $91.31M ÷ $417.80M × 100 ≈ 21.86% |
| Interest coverage · 12 months | (m) | Estimated: average term debt × dated USD coupon proxy + average commercial paper × matching-currency disclosed rate at or before period end. Swaps, foreign-exchange, lease interest and amortization are not quantified. Calculation unavailable: missing inputs remain (m). |
Calculation inputs
| Input | Amount with unit | Raw financial data |
|---|---|---|
| Research and development spending | 228.69M USD | Research and Development Expense |
| Revenue | 417.80M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 91.31M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -62.24M USD | Operating Income (Loss) |
| Interest expense · reported / estimated | (m) | · Estimated expense assumptions |
Latest interest expense basis: (m). Estimated values carry *; expand each history row’s basis for its dated balances and rate assumptions.
Calculated history
Changes compare with the next older row (previous quarter), unless explicitly labeled otherwise. Rolling 12-month growth compares two successive quarter-end rolling totals; it is not year-over-year growth.
| Period ending | Research and development spending (USD) | Revenue (USD) | Stock-based compensation (USD) | Operating income (USD) | Interest expense · reported / estimated (USD) | R&D / revenue | SBC / revenue | Interest coverage | Interest expense basis |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07-31 | $228.69M | $417.80M | $91.31M | $-62.24M | (m) | 54.74% | 21.86% | (m) | (m) |
| 2026-04-30 | $237.84M | $405.19M | $93.80M | $-76.08M | (m) | 58.70% | 23.15% | (m) | (m) |
| 2026-01-31 | $238.52M | $390.70M | $98.04M | $-82.53M | (m) | 61.05% | 25.09% | (m) | (m) |
| 2025-10-31 | $236.83M | $373.85M | $104.37M | $-89.45M | (m) | 63.35% | 27.92% | (m) | (m) |
| 2025-07-31 | $233.76M | $348.05M | $105.47M | $-98.71M | (m) | 67.16% | 30.30% | (m) | (m) |
| 2025-04-30 | $230.79M | $316.26M | $107.90M | $-113.01M | (m) | 72.97% | 34.12% | (m) | (m) |
| 2025-01-31 | $226.11M | $284.87M | $107.80M | $-126.59M | (m) | 79.37% | 37.84% | (m) | (m) |
| 2024-10-31 | $221.28M | $252.47M | $109.02M | $-142.96M | (m) | 87.65% | 43.18% | (m) | (m) |
| 2024-07-31 | $216.59M | $220.41M | $109.58M | $-159.41M | (m) | 98.27% | 49.72% | (m) | (m) |
| 2024-04-30 | $214.75M | $218.81M | $110.09M | $-158.46M | (m) | 98.15% | 50.31% | (m) | (m) |
| 2024-01-31 | $215.05M | $226.47M | $111.32M | $-154.56M | (m) | 94.96% | 49.15% | (m) | (m) |
| 2023-10-31 | $216.11M | $258.18M | $111.90M | $-136.29M | (m) | 83.71% | 43.34% | (m) | (m) |
| 2023-07-31 | $215.28M | $290.68M | $112.59M | $-114.45M | (m) | 74.06% | 38.74% | (m) | (m) |
| 2023-04-30 | $212.70M | $309.44M | $111.38M | $-99.30M | (m) | 68.74% | 35.99% | (m) | (m) |
| 2023-01-31 | $204.95M | $337.61M | $111.16M | $-74.26M | (m) | 60.71% | 32.93% | (m) | (m) |
| 2022-10-31 | $200.44M | $344.51M | $109.58M | $-63.15M | (m) | 58.18% | 31.81% | (m) | (m) |
| 2022-07-31 | $188.93M | $353.58M | $103.54M | $-44.23M | (m) | 53.43% | 29.28% | (m) | (m) |
| 2022-04-30 | $176.15M | $352.03M | $96.00M | $-30.00M | (m) | 50.04% | 27.27% | (m) | (m) |
| 2022-01-31 | $167.34M | $331.86M | $87.80M | $-29.64M | (m) | 50.42% | 26.46% | (m) | (m) |
| 2021-10-31 | $155.98M | $303.77M | $78.99M | $-31.32M | (m) | 51.35% | 26.00% | (m) | (m) |
| 2021-07-31 | $151.19M | $267.69M | $75.92M | $-46.36M | (m) | 56.48% | 28.36% | (m) | (m) |
| 2021-04-30 | $144.43M | $238.48M | $72.94M | $-55.69M | (m) | 60.56% | 30.59% | (m) | (m) |
| 2021-01-31 | $140.76M | $222.99M | $70.13M | $-61.17M | (m) | 63.12% | 31.45% | (m) | (m) |
| 2020-10-31 | $137.38M | $218.06M | $68.31M | $-60.98M | (m) | 63.00% | 31.33% | (m) | (m) |
| 2020-07-31 | $133.29M | $229.89M | $66.64M | $-51.90M | (m) | 57.98% | 28.99% | (m) | (m) |
| 2020-04-30 | $130.91M | $236.19M | $66.45M | $-47.02M | (m) | 55.42% | 28.13% | (m) | (m) |
| 2020-01-31 | $129.72M | $228.73M | $66.87M | $-49.65M | (m) | 56.71% | 29.24% | (m) | (m) |
| 2019-10-31 | $128.56M | $222.59M | $65.84M | $-50.18M | (m) | 57.75% | 29.58% | (m) | (m) |
| 2019-07-31 | $127.73M | $211.95M | $64.15M | $-52.44M | (m) | 60.26% | 30.26% | (m) | (m) |
| 2019-04-30 | $129.44M | $218.02M | $63.08M | $-48.71M | (m) | 59.37% | 28.93% | (m) | (m) |
| 2019-01-31 | $128.08M | $227.77M | $60.81M | $-40.42M | (m) | 56.23% | 26.70% | (m) | (m) |
| 2018-10-31 | $127.02M | $247.27M | $59.72M | $-24.66M | (m) | 51.37% | 24.15% | (m) | (m) |
| 2018-07-31 | $125.16M | $279.05M | $58.78M | $-123.00K | (m) | 44.85% | 21.06% | (m) | (m) |
| 2018-04-30 | $120.57M | $288.20M | $58.08M | $11.86M | (m) | 41.84% | 20.15% | (m) | (m) |
| 2018-01-31 | $115.51M | $295.40M | $56.86M | $24.43M | (m) | 39.10% | 19.25% | (m) | (m) |
| 2017-10-31 | $111.06M | $312.33M | $55.43M | $43.12M | (m) | 35.56% | 17.75% | (m) | (m) |
| 2017-07-31 | $107.24M | $323.76M | $53.47M | $57.67M | (m) | 33.12% | 16.52% | (m) | (m) |
| 2017-04-30 | $103.34M | $317.27M | $50.50M | $61.63M | (m) | 32.57% | 15.92% | (m) | (m) |
| 2017-01-31 | $101.20M | $310.30M | $48.83M | $60.36M | (m) | 32.62% | 15.74% | (m) | (m) |
| 2016-10-31 | $97.52M | $290.76M | $47.02M | $49.39M | (m) | 33.54% | 16.17% | (m) | (m) |
| 2016-07-31 | $93.61M | $283.47M | $42.26M | $50.04M | (m) | 33.02% | 14.91% | (m) | (m) |
| 2016-04-30 | $90.81M | $302.52M | $36.91M | $65.70M | (m) | 30.02% | 12.20% | (m) | (m) |
| 2016-01-31 | $82.93M | $316.37M | $31.09M | $84.68M | (m) | 26.21% | 9.83% | (m) | (m) |
| 2015-10-31 | $75.47M | $313.11M | $25.13M | $92.69M | (m) | 24.10% | 8.03% | (m) | (m) |
| 2015-07-31 | $68.99M | $285.60M | $21.47M | $81.02M | (m) | 24.16% | 7.52% | (m) | (m) |
| 2015-04-30 | $61.65M | $248.37M | $18.30M | $66.26M | (m) | 24.82% | 7.37% | (m) | (m) |
| 2015-01-31 | $57.98M | $218.28M | $15.69M | $51.86M | (m) | 26.56% | 7.19% | (m) | (m) |
| 2014-10-31 | $55.01M | $193.54M | $12.98M | $40.44M | (m) | 28.42% | 6.71% | (m) | (m) |
| 2014-07-31 | $52.90M | $173.85M | $11.16M | $31.86M | (m) | 30.43% | 6.42% | (m) | (m) |
| 2014-04-30 | $50.37M | $164.59M | $9.80M | $28.63M | (m) | 30.61% | 5.96% | (m) | (m) |
| 2014-01-31 | $48.78M | $157.61M | $8.54M | $27.92M | (m) | 30.95% | 5.42% | (m) | (m) |
| 2013-10-31 | $46.97M | $149.16M | $7.22M | $25.84M | (m) | 31.49% | 4.84% | (m) | (m) |
| 2013-07-31 | $44.29M | $138.84M | $6.24M | $23.36M | (m) | 31.90% | 4.50% | (m) | (m) |
| 2013-04-30 | $42.67M | $129.09M | $5.66M | $22.22M | (m) | 33.06% | 4.39% | (m) | (m) |
| 2013-01-31 | $42.83M | $121.07M | $5.00M | $19.91M | (m) | 35.38% | 4.13% | (m) | (m) |
| 2012-10-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-07-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-04-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-01-31 | $37.62M | $97.26M | $3.62M | $11.26M | (m) | 38.68% | 3.72% | (m) | (m) |
| 2011-10-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-01-31 | $34.45M | $94.74M | $1.86M | $15.48M | (m) | 36.36% | 1.96% | (m) | (m) |
(m) means missing inputs. Historical market-based ratios use the saved close on or immediately before period ending and that period’s reported shares; current quotes are not substituted. Five-year projections repeat historical CAGR, not analyst forecasts.
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