FUEL TECH, INC. (FTEK) Spending and interest coverage
- R&D / revenue · 12 months: Value 7.78%; 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 (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 | 7.78% | Research and development expense / revenue. Period ending 2026-06-30. $2.12M ÷ $27.30M × 100 ≈ 7.78% |
| Stock-based compensation / revenue · 12 months | 0.78% | Share-based compensation / revenue. Period ending 2026-06-30. $212.00K ÷ $27.30M × 100 ≈ 0.78% |
| 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 | 2.12M USD | Research and Development Expense |
| Revenue | 27.30M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 212.00K USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -4.58M 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 | $2.12M | $27.30M | $212.00K | $-4.58M | (m) | 7.78% | 0.78% | (m) | (m) |
| 2026-03-31 | $1.97M | $26.38M | $272.00K | $-4.33M | (m) | 7.46% | 1.03% | (m) | (m) |
| 2025-12-31 | $2.01M | $26.68M | $326.00K | $-3.68M | (m) | 7.55% | 1.22% | (m) | (m) |
| 2025-09-30 | $1.92M | $24.71M | $378.00K | $-4.37M | (m) | 7.75% | 1.53% | (m) | (m) |
| 2025-06-30 | $1.83M | $25.07M | $430.00K | $-4.55M | (m) | 7.28% | 1.71% | (m) | (m) |
| 2025-03-31 | $1.76M | $26.56M | $452.00K | $-3.96M | (m) | 6.62% | 1.70% | (m) | (m) |
| 2024-12-31 | $1.56M | $25.13M | $446.00K | $-4.70M | $0.00 | 6.22% | 1.77% | (m) | Reported |
| 2024-09-30 | $1.53M | $26.20M | $438.00K | $-3.39M | $6.00K | 5.83% | 1.67% | -564.50× | Reported |
| 2024-06-30 | $1.68M | $26.33M | $430.00K | $-3.08M | $11.00K | 6.37% | 1.63% | -279.55× | Reported |
| 2024-03-31 | $1.67M | $24.75M | $404.00K | $-3.69M | $16.00K | 6.74% | 1.63% | -230.75× | Reported |
| 2023-12-31 | $1.51M | $27.08M | $389.00K | $-2.66M | $21.00K | 5.58% | 1.44% | -126.57× | Reported |
| 2023-09-30 | $1.32M | $27.76M | $376.00K | $-2.11M | $19.00K | 4.77% | 1.35% | -110.89× | Reported |
| 2023-06-30 | $1.02M | $27.79M | $365.00K | $-2.05M | $18.00K | 3.66% | 1.31% | -113.78× | Reported |
| 2023-03-31 | $893.00K | $28.69M | $295.00K | $-1.20M | $17.00K | 3.11% | 1.03% | -70.65× | Reported |
| 2022-12-31 | $895.00K | $26.94M | $224.00K | $-1.53M | $17.00K | 3.32% | 0.83% | -89.82× | Reported |
| 2022-09-30 | $978.00K | $26.37M | $157.00K | $-1.50M | $12.00K | 3.71% | 0.60% | -124.83× | Reported |
| 2022-06-30 | $1.11M | $25.91M | $88.00K | $-1.11M | $13.00K | 4.29% | 0.34% | -85.54× | Reported |
| 2022-03-31 | $1.14M | $24.76M | $80.00K | $-1.32M | $14.00K | 4.59% | 0.32% | -94.00× | Reported |
| 2021-12-31 | $1.33M | $24.26M | $82.00K | $-1.49M | $13.00K | 5.49% | 0.34% | -114.54× | Reported |
| 2021-09-30 | $1.37M | $24.03M | $143.00K | $-2.93M | $3.00K | 5.69% | 0.60% | -978.00× | Reported |
| 2021-06-30 | $1.31M | $24.62M | $180.00K | $-1.07M | $7.00K | 5.33% | 0.73% | -153.57× | Reported |
| 2021-03-31 | $1.27M | $23.80M | $229.00K | $-2.81M | $5.00K | 5.33% | 0.96% | -562.00× | Reported |
| 2020-12-31 | $1.18M | $22.55M | $290.00K | $-4.34M | $4.00K | 5.22% | 1.29% | -1084.00× | Reported |
| 2020-09-30 | $1.18M | $21.25M | $425.00K | $-7.40M | (m) | 5.57% | 2.00% | (m) | (m) |
| 2020-06-30 | $1.25M | $19.54M | $505.00K | $-11.20M | (m) | 6.40% | 2.58% | (m) | (m) |
| 2020-03-31 | $1.19M | $24.09M | $559.00K | $-9.62M | (m) | 4.92% | 2.32% | (m) | (m) |
| 2019-12-31 | $1.13M | $30.47M | $574.00K | $-8.24M | (m) | 3.70% | 1.88% | (m) | (m) |
| 2019-09-30 | $1.08M | $41.38M | $455.00K | $-2.64M | (m) | 2.61% | 1.10% | (m) | (m) |
| 2019-06-30 | $995.00K | $51.00M | $414.00K | $-235.00K | (m) | 1.95% | 0.81% | (m) | (m) |
| 2019-03-31 | $1.05M | $53.90M | $388.00K | $-1.01M | (m) | 1.95% | 0.72% | (m) | (m) |
| 2018-12-31 | $1.07M | $56.53M | $233.00K | $110.00K | (m) | 1.90% | 0.41% | (m) | (m) |
| 2018-09-30 | $1.10M | $54.09M | $317.00K | $-310.00K | (m) | 2.04% | 0.59% | (m) | (m) |
| 2018-06-30 | $1.05M | $51.57M | $271.00K | $-1.49M | $0.00 | 2.05% | 0.53% | (m) | Reported |
| 2018-03-31 | $1.07M | $45.17M | $1.34M | $-5.47M | (m) | 2.38% | 2.97% | (m) | (m) |
| 2017-12-31 | $1.07M | $45.17M | $1.39M | $-7.07M | $0.00 | 2.37% | 3.08% | (m) | Reported |
| 2017-09-30 | $3.89M | $41.35M | $1.68M | $-16.70M | (m) | 9.42% | 4.06% | (m) | (m) |
| 2017-06-30 | $4.35M | $40.40M | $2.11M | $-18.82M | (m) | 10.77% | 5.21% | (m) | (m) |
| 2017-03-31 | $4.41M | $45.83M | $1.52M | $-14.74M | (m) | 9.62% | 3.32% | (m) | (m) |
| 2016-12-31 | $4.55M | $55.16M | $1.99M | $-14.82M | $0.00 | 8.25% | 3.61% | (m) | Reported |
| 2016-09-30 | $4.48M | $63.79M | $2.01M | $-10.58M | $-3.00K | 7.02% | 3.15% | (m) | Reported |
| 2016-06-30 | $4.70M | $72.88M | $2.02M | $-8.49M | $-3.00K | 6.45% | 2.77% | (m) | Reported |
| 2016-03-31 | $4.56M | $76.38M | $2.00M | $-8.44M | $0.00 | 5.97% | 2.62% | (m) | Reported |
| 2015-12-31 | $4.27M | $73.66M | $1.81M | $-8.26M | $27.00K | 5.80% | 2.46% | -305.81× | Reported |
| 2015-09-30 | $3.99M | $74.15M | $1.95M | $-30.25M | $59.00K | 5.38% | 2.63% | -512.64× | Reported |
| 2015-06-30 | $2.84M | $73.95M | $1.93M | $-28.01M | $92.00K | 3.85% | 2.61% | -304.46× | Reported |
| 2015-03-31 | $2.09M | $75.46M | $2.17M | $-26.43M | $123.00K | 2.77% | 2.88% | -214.92× | Reported |
| 2014-12-31 | $1.46M | $79.02M | $2.32M | $-25.16M | $125.00K | 1.85% | 2.94% | -201.30× | Reported |
| 2014-09-30 | $1.47M | $84.54M | $2.29M | $129.00K | $123.00K | 1.73% | 2.70% | 1.05× | Reported |
| 2014-06-30 | $1.55M | $96.61M | $2.36M | $4.02M | $109.00K | 1.60% | 2.44% | 36.91× | Reported |
| 2014-03-31 | $1.75M | $105.52M | $1.89M | $6.82M | $85.00K | 1.66% | 1.79% | 80.26× | Reported |
| 2013-12-31 | $2.44M | $109.34M | $1.80M | $8.00M | $56.00K | 2.23% | 1.64% | 142.86× | Reported |
| 2013-09-30 | $2.64M | $111.75M | $1.67M | $8.42M | $32.00K | 2.37% | 1.49% | 263.16× | Reported |
| 2013-06-30 | $2.75M | $103.10M | $1.60M | $4.69M | $29.00K | 2.67% | 1.55% | 161.69× | Reported |
| 2013-03-31 | $3.29M | $94.92M | $1.43M | $2.75M | (m) | 3.47% | 1.50% | (m) | (m) |
| 2012-12-31 | $2.86M | $97.64M | $1.31M | $5.20M | $93.00K | 2.93% | 1.34% | 55.91× | Reported |
| 2012-09-30 | $2.44M | $99.03M | $1.46M | $7.27M | $113.00K | 2.47% | 1.47% | 64.34× | Reported |
| 2012-06-30 | $2.23M | $98.15M | $1.49M | $8.58M | $144.00K | 2.27% | 1.51% | 59.59× | Reported |
| 2012-03-31 | $1.58M | $96.26M | $2.38M | $9.34M | $133.00K | 1.64% | 2.48% | 70.21× | Reported |
| 2011-12-31 | $1.47M | $93.67M | $2.81M | $9.65M | $148.00K | 1.57% | 3.00% | 65.20× | 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 | $948.00K | $81.80M | $4.27M | $3.94M | $143.00K | 1.16% | 5.23% | 27.53× | 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 | $542.00K | $71.40M | $6.10M | $-3.08M | $120.00K | 0.76% | 8.54% | -25.68× | 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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