SOLUNA HOLDINGS, INC. (SLNH) Spending and interest coverage
- R&D / revenue · 12 months: Value (m); Formula and calculation Research and development expense / revenue. Period ending 2026-06-30..
- Stock-based compensation / revenue · 12 months: Value 62.93%; 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 | (m) | Research and development expense / revenue. Period ending 2026-06-30. Calculation unavailable: missing inputs remain (m). |
| Stock-based compensation / revenue · 12 months | 62.93% | Share-based compensation / revenue. Period ending 2026-06-30. $26.48M ÷ $42.08M × 100 ≈ 62.93% |
| 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 | (m) | Research and Development Expense |
| Revenue | 42.08M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 26.48M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -53.45M USD | Operating Income (Loss) |
| Interest expense · reported / estimated | (m) | Interest Expense · 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 | (m) | $42.08M | $26.48M | $-53.45M | (m) | (m) | 62.93% | (m) | (m) |
| 2026-03-31 | (m) | $33.17M | $18.94M | $-43.13M | (m) | (m) | 57.09% | (m) | (m) |
| 2025-12-31 | (m) | $29.72M | $10.57M | $-33.68M | (m) | (m) | 35.56% | (m) | (m) |
| 2025-09-30 | (m) | $28.78M | $7.70M | $-56.82M | $4.08M | (m) | 26.74% | -13.93× | Reported |
| 2025-06-30 | (m) | $27.89M | $7.07M | $-58.06M | $3.69M | (m) | 25.35% | -15.74× | Reported |
| 2025-03-31 | (m) | $31.41M | $6.50M | $-55.11M | $2.94M | (m) | 20.69% | -18.74× | Reported |
| 2024-12-31 | (m) | $38.02M | $5.31M | $-47.52M | $2.53M | (m) | 13.97% | -18.81× | Reported |
| 2024-09-30 | (m) | (m) | $3.80M | $-14.71M | $2.09M | (m) | (m) | -7.05× | Reported |
| 2024-06-30 | (m) | (m) | $3.14M | $-9.43M | $1.76M | (m) | (m) | -5.36× | Reported |
| 2024-03-31 | (m) | $30.53M | $4.01M | $-12.82M | $1.80M | (m) | 13.12% | -7.13× | Reported |
| 2023-12-31 | (m) | $21.07M | $4.22M | $-20.24M | $2.75M | (m) | 20.06% | -7.37× | Reported |
| 2023-09-30 | (m) | $15.13M | $4.57M | $-44.66M | $2.87M | (m) | 30.18% | -15.54× | Reported |
| 2023-06-30 | (m) | $15.71M | $4.78M | $-82.64M | $4.00M | (m) | 30.44% | -20.64× | Reported |
| 2023-03-31 | (m) | $22.31M | $3.59M | $-85.00M | $6.87M | (m) | 16.10% | -12.38× | Reported |
| 2022-12-31 | (m) | $28.55M | $3.67M | $-84.79M | $8.38M | (m) | 12.87% | -10.12× | Reported |
| 2022-09-30 | (m) | $32.93M | $3.31M | $-59.46M | (m) | (m) | 10.07% | (m) | (m) |
| 2022-06-30 | (m) | $29.68M | $2.85M | $-18.68M | (m) | (m) | 9.61% | (m) | (m) |
| 2022-03-31 | (m) | $22.67M | $2.84M | $-10.64M | (m) | (m) | 12.53% | (m) | (m) |
| 2021-12-31 | (m) | $14.35M | $1.94M | $-4.48M | $1.88M | (m) | 13.53% | -2.38× | Reported |
| 2021-09-30 | $1.56M | $12.60M | $1.39M | $-2.94M | (m) | 12.38% | 11.05% | (m) | (m) |
| 2021-06-30 | $1.52M | $11.21M | $1.07M | $-858.00K | (m) | 13.55% | 9.53% | (m) | (m) |
| 2021-03-31 | $1.47M | $10.35M | $76.00K | $921.00K | (m) | 14.24% | 0.73% | (m) | (m) |
| 2020-12-31 | $1.49M | $9.60M | $54.00K | $1.45M | (m) | 15.53% | 0.56% | (m) | (m) |
| 2020-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2020-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2020-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2019-12-31 | $1.38M | $6.57M | $31.00K | $259.00K | (m) | 21.02% | 0.47% | (m) | (m) |
| 2017-12-31 | $1.15M | (m) | $41.00K | $588.00K | (m) | (m) | (m) | (m) | (m) |
| 2017-09-30 | $1.19M | (m) | $355.00K | $26.00K | (m) | (m) | (m) | (m) | (m) |
| 2017-06-30 | $1.21M | (m) | $390.00K | $15.00K | (m) | (m) | (m) | (m) | (m) |
| 2017-03-31 | $1.22M | (m) | $426.00K | $-190.00K | (m) | (m) | (m) | (m) | (m) |
| 2016-12-31 | $1.24M | (m) | $449.00K | $-361.00K | (m) | (m) | (m) | (m) | (m) |
| 2016-09-30 | $1.38M | (m) | $168.00K | $-419.00K | (m) | (m) | (m) | (m) | (m) |
| 2016-06-30 | $1.44M | (m) | $164.00K | $-1.35M | (m) | (m) | (m) | (m) | (m) |
| 2016-03-31 | $1.50M | (m) | $156.00K | $-1.66M | (m) | (m) | (m) | (m) | (m) |
| 2015-12-31 | $1.55M | (m) | $141.00K | $-1.47M | (m) | (m) | (m) | (m) | (m) |
| 2015-09-30 | $1.41M | (m) | $129.00K | $-324.00K | (m) | (m) | (m) | (m) | (m) |
| 2015-06-30 | $1.37M | (m) | $114.00K | $224.00K | (m) | (m) | (m) | (m) | (m) |
| 2015-03-31 | $1.36M | (m) | $101.00K | $610.00K | (m) | (m) | (m) | (m) | (m) |
| 2014-12-31 | $1.35M | (m) | $85.00K | $565.00K | (m) | (m) | (m) | (m) | (m) |
| 2014-09-30 | (m) | (m) | $22.05K | $-854.64K | (m) | (m) | (m) | (m) | (m) |
| 2014-06-30 | (m) | (m) | $14.05K | $-551.64K | (m) | (m) | (m) | (m) | (m) |
| 2014-03-31 | (m) | (m) | $61.00 | $-136.00 | (m) | (m) | (m) | (m) | (m) |
| 2013-12-31 | (m) | (m) | $51.00 | $361.00 | $0.00 | (m) | (m) | (m) | Reported |
| 2013-09-30 | $1.27M | (m) | $46.00K | $1.01M | (m) | (m) | (m) | (m) | (m) |
| 2013-06-30 | $1.30M | (m) | $83.00K | $-418.00K | (m) | (m) | (m) | (m) | (m) |
| 2013-03-31 | $1.33M | (m) | $119.00K | $-1.34M | (m) | (m) | (m) | (m) | (m) |
| 2012-12-31 | $1.36M | $5.90M | $172.00K | $-2.24M | $1.00K | 23.12% | 2.92% | -2244.00× | Reported |
| 2012-09-30 | $1.35M | $6.93M | $226.00K | $-1.93M | (m) | 19.47% | 3.26% | (m) | (m) |
| 2012-06-30 | $1.39M | $8.17M | $572.00K | $-971.00K | (m) | 17.05% | 7.00% | (m) | (m) |
| 2012-03-31 | $1.43M | $8.95M | $617.00K | $-683.00K | (m) | 15.98% | 6.90% | (m) | (m) |
| 2011-12-31 | $1.47M | $10.29M | $661.00K | $52.00K | $0.00 | 14.24% | 6.42% | (m) | Reported |
| 2011-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-12-31 | $3.85M | $8.41M | $1.45M | $-3.39M | $0.00 | 45.82% | 17.20% | (m) | 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) |
| 2009-12-31 | $5.44M | $8.31M | $505.00K | $-3.09M | $222.00K | 65.54% | 6.08% | -13.91× | 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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