RIBBON COMMUNICATIONS INC. (RBBN) Spending and interest coverage
- R&D / revenue · 12 months: Value 22.56%; Formula and calculation Research and development expense / revenue. Period ending 2026-06-30..
- Stock-based compensation / revenue · 12 months: Value 2.69%; Formula and calculation Share-based compensation / revenue. Period ending 2026-06-30..
- 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 2026-06-30; current quote (m). Amounts retain their stated periods and units.
| Metric | Value | Formula and calculation |
|---|---|---|
| R&D / revenue · 12 months | 22.56% | Research and development expense / revenue. Period ending 2026-06-30. $179.91M ÷ $797.64M × 100 ≈ 22.56% |
| Stock-based compensation / revenue · 12 months | 2.69% | Share-based compensation / revenue. Period ending 2026-06-30. $21.42M ÷ $797.64M × 100 ≈ 2.69% |
| 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 | 179.91M USD | Research and Development Expense |
| Revenue | 797.64M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 21.42M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -31.85M 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | $179.91M | $797.64M | $21.42M | $-31.85M | (m) | 22.56% | 2.69% | (m) | (m) |
| 2026-03-31 | $179.75M | $825.88M | $21.07M | $-15.41M | (m) | 21.76% | 2.55% | (m) | (m) |
| 2025-12-31 | $178.87M | $844.56M | $19.41M | $-3.32M | (m) | 21.18% | 2.30% | (m) | (m) |
| 2025-09-30 | $179.20M | $868.59M | $18.64M | $20.60M | (m) | 20.63% | 2.15% | (m) | (m) |
| 2025-06-30 | $178.95M | $863.46M | $16.84M | $16.91M | (m) | 20.73% | 1.95% | (m) | (m) |
| 2025-03-31 | $177.75M | $835.50M | $15.86M | $10.75M | (m) | 21.27% | 1.90% | (m) | (m) |
| 2024-12-31 | $179.94M | $833.88M | $16.09M | $16.87M | (m) | 21.58% | 1.93% | (m) | (m) |
| 2024-09-30 | $180.25M | $808.92M | $16.95M | $322.00K | (m) | 22.28% | 2.10% | (m) | (m) |
| 2024-06-30 | $180.83M | $801.85M | $17.86M | $2.10M | (m) | 22.55% | 2.23% | (m) | (m) |
| 2024-03-31 | $185.12M | $819.84M | $20.48M | $-2.58M | (m) | 22.58% | 2.50% | (m) | (m) |
| 2023-12-31 | $190.66M | $826.34M | $21.81M | $-24.29M | (m) | 23.07% | 2.64% | (m) | (m) |
| 2023-09-30 | $195.83M | $833.58M | $22.13M | $-39.69M | (m) | 23.49% | 2.65% | (m) | (m) |
| 2023-06-30 | $198.96M | $837.54M | $22.02M | $-43.84M | (m) | 23.76% | 2.63% | (m) | (m) |
| 2023-03-31 | $202.29M | $832.72M | $20.30M | $-44.46M | (m) | 24.29% | 2.44% | (m) | (m) |
| 2022-12-31 | $203.68M | $819.76M | $18.71M | $-48.32M | (m) | 24.85% | 2.28% | (m) | (m) |
| 2022-09-30 | $204.77M | $816.70M | $18.50M | $-169.72M | (m) | 25.07% | 2.27% | (m) | (m) |
| 2022-06-30 | $204.53M | $819.97M | $18.22M | $-164.44M | (m) | 24.94% | 2.22% | (m) | (m) |
| 2022-03-31 | $200.23M | $825.38M | $18.61M | $-144.25M | (m) | 24.26% | 2.26% | (m) | (m) |
| 2021-12-31 | $194.95M | $844.96M | $19.42M | $-117.80M | (m) | 23.07% | 2.30% | (m) | (m) |
| 2021-09-30 | $194.66M | $858.58M | $18.14M | $19.24M | (m) | 22.67% | 2.11% | (m) | (m) |
| 2021-06-30 | $194.64M | $879.30M | $17.55M | $29.16M | (m) | 22.14% | 2.00% | (m) | (m) |
| 2021-03-31 | $199.64M | $878.59M | $15.98M | $17.80M | (m) | 22.72% | 1.82% | (m) | (m) |
| 2020-12-31 | $194.53M | $843.79M | $13.90M | $1.67M | (m) | 23.05% | 1.65% | (m) | (m) |
| 2020-09-30 | $178.81M | $760.70M | $14.61M | $-164.05M | (m) | 23.51% | 1.92% | (m) | (m) |
| 2020-06-30 | $163.92M | $667.24M | $13.13M | $-173.28M | (m) | 24.57% | 1.97% | (m) | (m) |
| 2020-03-31 | $147.42M | $602.16M | $11.44M | $-181.97M | (m) | 24.48% | 1.90% | (m) | (m) |
| 2019-12-31 | $141.06M | $563.11M | $12.60M | $-189.46M | (m) | 25.05% | 2.24% | (m) | (m) |
| 2019-09-30 | $141.86M | $568.90M | $11.80M | $-39.46M | (m) | 24.94% | 2.08% | (m) | (m) |
| 2019-06-30 | $142.04M | $583.71M | $11.84M | $-49.71M | (m) | 24.33% | 2.03% | (m) | (m) |
| 2019-03-31 | $142.35M | $575.65M | $12.39M | $-59.25M | (m) | 24.73% | 2.15% | (m) | (m) |
| 2018-12-31 | $145.46M | $577.90M | $11.07M | $-65.41M | (m) | 25.17% | 1.92% | (m) | (m) |
| 2018-09-30 | $149.47M | (m) | $21.69M | $-102.25M | (m) | (m) | (m) | (m) | (m) |
| 2018-06-30 | $135.86M | (m) | $23.06M | $-90.76M | (m) | (m) | (m) | (m) | (m) |
| 2018-03-31 | $120.32M | $397.75M | $25.22M | $-86.83M | (m) | 30.25% | 6.34% | (m) | (m) |
| 2017-12-31 | $101.48M | $329.94M | $25.66M | $-55.23M | (m) | 30.76% | 7.78% | (m) | (m) |
| 2017-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2017-06-30 | (m) | $241.68M | (m) | $-30.50M | (m) | (m) | (m) | (m) | (m) |
| 2017-03-31 | (m) | $246.81M | (m) | $-20.51M | (m) | (m) | (m) | (m) | (m) |
| 2016-12-31 | $72.84M | $252.59M | $19.77M | $-13.61M | (m) | 28.84% | 7.83% | (m) | (m) |
| 2016-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2016-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2016-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2015-12-31 | $77.91M | $249.03M | $21.70M | $-31.22M | (m) | 31.28% | 8.71% | (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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