ADTRAN Holdings, Inc. (ADTN) Spending and interest coverage
- R&D / revenue · 12 months: Value 18.28%; Formula and calculation Research and development expense / revenue. Period ending 2026-06-30..
- Stock-based compensation / revenue · 12 months: Value 0.78%; Formula and calculation Share-based compensation / revenue. Period ending 2026-06-30..
- Interest coverage · 12 months: Value -0.11×; Formula and calculation Operating income ÷ reported interest expense..
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 | 18.28% | Research and development expense / revenue. Period ending 2026-06-30. $208.08M ÷ $1.14B × 100 ≈ 18.28% |
| Stock-based compensation / revenue · 12 months | 0.78% | Share-based compensation / revenue. Period ending 2026-06-30. $8.84M ÷ $1.14B × 100 ≈ 0.78% |
| Interest coverage · 12 months | -0.11× | Operating income ÷ reported interest expense. $-2.01M ÷ $18.49M ≈ -0.11× |
Calculation inputs
| Input | Amount with unit | Raw financial data |
|---|---|---|
| Research and development spending | 208.08M USD | Research and Development Expense |
| Revenue | 1.14B USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 8.84M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -2.01M USD | Operating Income (Loss) |
| Interest expense · reported / estimated | 18.49M USD | Interest Expense · Estimated expense assumptions |
Latest interest expense basis: Reported. 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 | $208.08M | $1.14B | $8.84M | $-2.01M | $18.49M | 18.28% | 0.78% | -0.11× | Reported |
| 2026-03-31 | $206.19M | $1.12B | $8.67M | $-5.25M | $18.82M | 18.37% | 0.77% | -0.28× | Reported |
| 2025-12-31 | $204.28M | $1.08B | $10.06M | $-15.60M | $19.34M | 18.85% | 0.93% | -0.81× | Reported |
| 2025-09-30 | $201.75M | $1.04B | $13.24M | $-36.84M | $19.69M | 19.49% | 1.28% | -1.87× | Reported |
| 2025-06-30 | $201.65M | $983.37M | $14.09M | $-60.15M | $19.87M | 20.51% | 1.43% | -3.03× | Reported |
| 2025-03-31 | $210.10M | $944.29M | $15.24M | $-85.29M | $22.22M | 22.25% | 1.61% | -3.84× | Reported |
| 2024-12-31 | $221.46M | $922.72M | $15.34M | $-417.10M | $22.05M | 24.00% | 1.66% | -18.91× | Reported |
| 2024-09-30 | $227.07M | $905.35M | $15.20M | $-439.58M | $21.62M | 25.08% | 1.68% | -20.33× | Reported |
| 2024-06-30 | $238.21M | $949.97M | $15.71M | $-504.90M | $20.45M | 25.08% | 1.65% | -24.69× | Reported |
| 2024-03-31 | $248.42M | $1.05B | $16.16M | $-511.22M | $17.61M | 23.63% | 1.54% | -29.03× | Reported |
| 2023-12-31 | $258.31M | $1.15B | $16.02M | $-221.27M | $16.30M | 22.48% | 1.39% | -13.58× | Reported |
| 2023-09-30 | $265.06M | $1.28B | $24.64M | $-216.53M | $13.87M | 20.68% | 1.92% | -15.61× | Reported |
| 2023-06-30 | $261.51M | $1.35B | $32.64M | $-175.25M | $10.66M | 19.37% | 2.42% | -16.43× | Reported |
| 2023-03-31 | $217.41M | $1.19B | $30.24M | $-122.49M | $6.69M | 18.19% | 2.53% | -18.30× | Reported |
| 2022-12-31 | $173.76M | $1.03B | $28.32M | $-72.83M | $3.44M | 16.94% | 2.76% | -21.19× | Reported |
| 2022-09-30 | $138.72M | $821.42M | $17.93M | $-47.19M | $1.44M | 16.89% | 2.18% | -32.70× | Reported |
| 2022-06-30 | $106.28M | $618.79M | $7.65M | $-9.23M | $146.00K | 17.18% | 1.24% | -63.23× | Reported |
| 2022-03-31 | $107.65M | $589.99M | $7.57M | $-13.43M | $58.00K | 18.25% | 1.28% | -231.60× | Reported |
| 2021-12-31 | $108.66M | $563.00M | $7.48M | $-14.70M | $34.00K | 19.30% | 1.33% | -432.35× | Reported |
| 2021-09-30 | $109.62M | $538.98M | $7.24M | $-10.79M | $22.00K | 20.34% | 1.34% | -490.27× | Reported |
| 2021-06-30 | $110.09M | $534.04M | $7.00M | $3.81M | $16.00K | 20.61% | 1.31% | 237.88× | Reported |
| 2021-03-31 | $110.93M | $519.52M | $6.85M | $-6.16M | $10.00K | 21.35% | 1.32% | -616.40× | Reported |
| 2020-12-31 | $113.29M | $506.51M | $6.83M | $-9.77M | $5.00K | 22.37% | 1.35% | -1954.60× | Reported |
| 2020-09-30 | $116.45M | $492.17M | $6.83M | $-20.52M | $130.00K | 23.66% | 1.39% | -157.84× | Reported |
| 2020-06-30 | $121.06M | $473.12M | $7.09M | $-45.34M | $258.00K | 25.59% | 1.50% | -175.74× | Reported |
| 2020-03-31 | $124.41M | $500.79M | $6.89M | $-38.74M | $385.00K | 24.84% | 1.38% | -100.62× | Reported |
| 2019-12-31 | $126.20M | $530.06M | $6.96M | $-39.96M | $511.00K | 23.81% | 1.31% | -78.21× | Reported |
| 2019-09-30 | $126.64M | $554.36M | $7.10M | $-29.68M | $517.00K | 22.84% | 1.28% | -57.40× | Reported |
| 2019-06-30 | $124.68M | $580.61M | $6.87M | $-11.57M | $523.00K | 21.47% | 1.18% | -22.12× | Reported |
| 2019-03-31 | $123.34M | $552.26M | $7.20M | $-24.94M | $528.00K | 22.33% | 1.30% | -47.24× | Reported |
| 2018-12-31 | $124.55M | $529.28M | $7.16M | $-45.42M | $533.00K | 23.53% | 1.35% | -85.22× | Reported |
| 2018-09-30 | $124.77M | $516.02M | $7.10M | $-45.44M | $537.00K | 24.18% | 1.38% | -84.62× | Reported |
| 2018-06-30 | $128.48M | $560.80M | $7.30M | $-25.04M | $542.00K | 22.91% | 1.30% | -46.19× | Reported |
| 2018-03-31 | $131.31M | $617.43M | $7.37M | $4.14M | $547.00K | 21.27% | 1.19% | 7.57× | Reported |
| 2017-12-31 | $130.43M | $666.90M | $7.43M | $37.74M | $556.00K | 19.56% | 1.11% | 67.87× | Reported |
| 2017-09-30 | $131.02M | $703.05M | $7.67M | $46.07M | $559.00K | 18.64% | 1.09% | 82.42× | Reported |
| 2017-06-30 | $129.46M | $686.83M | $7.33M | $37.88M | $563.00K | 18.85% | 1.07% | 67.29× | Reported |
| 2017-03-31 | $127.23M | $664.86M | $7.02M | $36.25M | $568.00K | 19.14% | 1.06% | 63.81× | Reported |
| 2016-12-31 | $124.80M | $636.78M | $6.70M | $34.73M | $572.00K | 19.60% | 1.05% | 60.73× | Reported |
| 2016-09-30 | $122.03M | $612.81M | $6.53M | $33.26M | $578.00K | 19.91% | 1.06% | 57.55× | Reported |
| 2016-06-30 | $122.63M | $602.00M | $6.71M | $31.20M | $586.00K | 20.37% | 1.11% | 53.25× | Reported |
| 2016-03-31 | $126.83M | $599.43M | $6.63M | $17.04M | $593.00K | 21.16% | 1.11% | 28.73× | Reported |
| 2015-12-31 | $129.88M | $600.06M | $6.71M | $13.48M | $596.00K | 21.64% | 1.12% | 22.62× | Reported |
| 2015-09-30 | $133.29M | $605.03M | $7.05M | $14.66M | $600.00K | 22.03% | 1.17% | 24.43× | Reported |
| 2015-06-30 | $134.05M | $609.85M | $7.53M | $19.08M | $599.00K | 21.98% | 1.23% | 31.85× | Reported |
| 2015-03-31 | $132.24M | $625.84M | $8.14M | $37.78M | $598.00K | 21.13% | 1.30% | 63.17× | Reported |
| 2014-12-31 | $132.26M | $630.01M | $8.56M | $47.11M | $677.00K | 20.99% | 1.36% | 69.59× | Reported |
| 2014-09-30 | $132.49M | $645.12M | $8.85M | $53.77M | $1.11M | 20.54% | 1.37% | 48.31× | Reported |
| 2014-06-30 | $131.71M | $659.63M | $8.88M | $58.49M | $1.54M | 19.97% | 1.35% | 37.88× | Reported |
| 2014-03-31 | $131.10M | $645.74M | $8.90M | $53.20M | $1.97M | 20.30% | 1.38% | 26.99× | Reported |
| 2013-12-31 | $131.06M | $641.74M | $9.07M | $48.47M | $2.33M | 20.42% | 1.41% | 20.85× | Reported |
| 2013-09-30 | $131.23M | $622.41M | $9.00M | $40.70M | $2.33M | 21.08% | 1.45% | 17.48× | Reported |
| 2013-06-30 | $134.27M | $607.13M | $9.17M | $33.77M | $2.33M | 22.12% | 1.51% | 14.46× | Reported |
| 2013-03-31 | $133.67M | $628.89M | $9.28M | $46.55M | $2.34M | 21.25% | 1.47% | 19.89× | Reported |
| 2012-12-31 | $125.95M | $620.61M | $9.26M | $56.17M | $2.35M | 20.29% | 1.49% | 23.93× | Reported |
| 2012-09-30 | $117.99M | $656.14M | $9.50M | $94.41M | $2.36M | 17.98% | 1.45% | 40.02× | Reported |
| 2012-06-30 | $109.30M | $686.21M | $9.44M | $135.24M | $2.37M | 15.93% | 1.38% | 57.06× | Reported |
| 2012-03-31 | $101.46M | $686.44M | $9.30M | $159.71M | $2.38M | 14.78% | 1.35% | 66.99× | Reported |
| 2011-12-31 | $100.30M | $717.23M | $9.17M | $189.14M | $2.40M | 13.98% | 1.28% | 78.87× | Reported |
| 2011-09-30 | $97.61M | $707.27M | $8.95M | $192.88M | $2.40M | 13.80% | 1.26% | 80.27× | Reported |
| 2011-06-30 | $93.52M | $678.03M | $8.38M | $186.82M | $2.43M | 13.79% | 1.24% | 76.75× | Reported |
| 2011-03-31 | $91.16M | $644.17M | $8.12M | $174.13M | $2.44M | 14.15% | 1.26% | 71.51× | Reported |
| 2010-12-31 | $90.30M | $605.67M | $7.72M | $153.86M | $2.44M | 14.91% | 1.27% | 63.16× | Reported |
| 2010-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-12-31 | $83.28M | $484.19M | $6.99M | $104.23M | $2.43M | 17.20% | 1.44% | 42.89× | Reported |
| 2009-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2008-12-31 | $81.82M | $500.68M | $7.34M | $113.80M | $2.51M | 16.34% | 1.47% | 45.27× | Reported |
(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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