SONO TEK CORP (SOTK) Spending and interest coverage
- R&D / revenue · 12 months: Value 11.67%; Formula and calculation Research and development expense / revenue. Period ending 2026-05-31..
- Stock-based compensation / revenue · 12 months: Value 1.53%; Formula and calculation Share-based compensation / revenue. Period ending 2026-05-31..
- 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 2026-05-31; current quote (m). Amounts retain their stated periods and units.
| Metric | Value | Formula and calculation |
|---|---|---|
| R&D / revenue · 12 months | 11.67% | Research and development expense / revenue. Period ending 2026-05-31. $2.50M ÷ $21.44M × 100 ≈ 11.67% |
| Stock-based compensation / revenue · 12 months | 1.53% | Share-based compensation / revenue. Period ending 2026-05-31. $327.66K ÷ $21.44M × 100 ≈ 1.53% |
| 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 | 2.50M USD | Research and Development Expense |
| Revenue | 21.44M USD | |
| Stock-based compensation | 327.66K USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | 2.24M 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-05-31 | $2.50M | $21.44M | $327.66K | $2.24M | (m) | 11.67% | 1.53% | (m) | (m) |
| 2026-02-28 | $2.55M | $20.91M | $317.00K | $1.82M | (m) | 12.21% | 1.52% | (m) | (m) |
| 2025-11-30 | $2.60M | $20.42M | $304.00K | $1.51M | (m) | 12.75% | 1.49% | (m) | (m) |
| 2025-08-31 | $2.59M | $20.61M | $297.00K | $1.39M | (m) | 12.58% | 1.44% | (m) | (m) |
| 2025-05-31 | $2.66M | $20.61M | $268.93K | $1.26M | (m) | 12.92% | 1.31% | (m) | (m) |
| 2025-02-28 | $2.72M | $20.50M | $248.00K | $1.01M | (m) | 13.29% | 1.21% | (m) | (m) |
| 2024-11-30 | $2.72M | $20.15M | $232.58K | $709.64K | (m) | 13.49% | 1.15% | (m) | (m) |
| 2024-08-31 | $2.87M | $20.65M | $205.58K | $1.23M | (m) | 13.89% | 1.00% | (m) | (m) |
| 2024-05-31 | $2.96M | $21.13M | $209.51K | $1.51M | (m) | 14.01% | 0.99% | (m) | (m) |
| 2024-02-29 | $2.89M | $19.70M | $203.58K | $1.18M | (m) | 14.65% | 1.03% | (m) | (m) |
| 2023-11-30 | $2.83M | $18.59M | $230.74K | $1.22M | (m) | 15.21% | 1.24% | (m) | (m) |
| 2023-08-31 | $2.57M | $16.49M | $239.74K | $599.13K | (m) | 15.60% | 1.45% | (m) | (m) |
| 2023-05-31 | $2.29M | $14.61M | $235.67K | $210.85K | (m) | 15.67% | 1.61% | (m) | (m) |
| 2023-02-28 | $2.15M | $15.06M | $256.74K | $682.99K | (m) | 14.27% | 1.70% | (m) | (m) |
| 2022-11-30 | $2.03M | $16.40M | $259.28K | $1.27M | (m) | 12.37% | 1.58% | (m) | (m) |
| 2022-08-31 | $1.93M | $17.23M | $250.28K | $1.66M | (m) | 11.18% | 1.45% | (m) | (m) |
| 2022-05-31 | $1.83M | $17.54M | $226.28K | $1.93M | (m) | 10.45% | 1.29% | (m) | (m) |
| 2022-02-28 | $1.73M | $17.13M | $179.28K | $1.89M | (m) | 10.09% | 1.05% | (m) | (m) |
| 2021-11-30 | $1.65M | $16.23M | (m) | $1.79M | (m) | 10.14% | (m) | (m) | (m) |
| 2021-08-31 | $1.64M | $15.64M | (m) | $1.75M | (m) | 10.46% | (m) | (m) | (m) |
| 2021-05-31 | $1.65M | $15.05M | (m) | $1.50M | (m) | 10.94% | (m) | (m) | (m) |
| 2021-02-28 | $1.64M | $14.83M | (m) | $1.34M | $39.84K | 11.09% | (m) | 33.64× | Reported |
| 2020-11-30 | $1.65M | $16.25M | (m) | $1.58M | $31.52K | 10.15% | (m) | 50.16× | Reported |
| 2020-08-31 | $1.60M | $16.10M | (m) | $1.40M | $33.28K | 9.96% | (m) | 42.20× | Reported |
| 2020-05-31 | $1.48M | $15.96M | (m) | $1.30M | $32.51K | 9.30% | (m) | 39.84× | Reported |
| 2020-02-29 | $1.43M | $15.35M | (m) | $1.12M | $33.04K | 9.30% | (m) | 33.76× | Reported |
| 2019-11-30 | $1.37M | $12.78M | (m) | $352.99K | $34.94K | 10.69% | (m) | 10.10× | Reported |
| 2019-08-31 | $1.33M | $12.26M | (m) | $133.40K | $36.63K | 10.85% | (m) | 3.64× | Reported |
| 2019-05-31 | $1.33M | $11.73M | (m) | $54.87K | $38.31K | 11.32% | (m) | 1.43× | Reported |
| 2019-02-28 | $1.32M | $11.61M | (m) | $82.49K | $39.98K | 11.41% | (m) | 2.06× | Reported |
| 2018-11-30 | $1.32M | (m) | (m) | $178.18K | $41.29K | (m) | (m) | 4.32× | Reported |
| 2018-08-31 | $1.32M | (m) | (m) | $316.19K | $42.90K | (m) | (m) | 7.37× | Reported |
| 2018-05-31 | $1.30M | (m) | (m) | $392.69K | $44.52K | (m) | (m) | 8.82× | Reported |
| 2018-02-28 | $1.28M | (m) | (m) | $381.62K | $46.12K | (m) | (m) | 8.27× | Reported |
| 2017-11-30 | $1.25M | (m) | (m) | $344.11K | $47.66K | (m) | (m) | 7.22× | Reported |
| 2017-08-31 | $1.24M | (m) | (m) | $199.95K | $49.21K | (m) | (m) | 4.06× | Reported |
| 2017-05-31 | $1.25M | (m) | (m) | $10.56K | $50.76K | (m) | (m) | 0.21× | Reported |
| 2017-02-28 | $1.25M | (m) | (m) | $-148.27K | $52.29K | (m) | (m) | -2.84× | Reported |
| 2016-11-30 | $1.27M | (m) | (m) | $-176.49K | $54.01K | (m) | (m) | -3.27× | Reported |
| 2016-08-31 | $1.27M | (m) | (m) | $48.87K | $55.50K | (m) | (m) | 0.88× | Reported |
| 2016-05-31 | $1.29M | (m) | (m) | $377.57K | $56.90K | (m) | (m) | 6.64× | Reported |
| 2016-02-29 | $1.27M | (m) | (m) | $740.29K | $58.45K | (m) | (m) | 12.67× | Reported |
| 2015-11-30 | $1.19M | $11.83M | (m) | $1.02M | $59.79K | 10.09% | (m) | 17.00× | Reported |
| 2015-08-31 | $1.14M | $11.65M | (m) | $1.02M | $62.28K | 9.78% | (m) | 16.46× | Reported |
| 2015-05-31 | $1.06M | $11.31M | (m) | $985.71K | $63.78K | 9.39% | (m) | 15.45× | Reported |
| 2015-02-28 | $1.02M | $10.85M | (m) | $850.19K | $64.53K | 9.36% | (m) | 13.18× | Reported |
| 2014-11-30 | $963.25K | (m) | (m) | $674.82K | $76.89K | (m) | (m) | 8.78× | Reported |
| 2014-08-31 | $918.70K | (m) | (m) | $660.17K | $87.22K | (m) | (m) | 7.57× | Reported |
| 2014-05-31 | $895.36K | (m) | (m) | $682.86K | $98.41K | (m) | (m) | 6.94× | Reported |
| 2014-02-28 | $885.10K | (m) | (m) | $718.57K | $110.15K | (m) | (m) | 6.52× | Reported |
| 2013-11-30 | $856.68K | (m) | (m) | $631.45K | $110.31K | (m) | (m) | 5.72× | Reported |
| 2013-08-31 | $864.93K | (m) | (m) | $405.16K | $111.53K | (m) | (m) | 3.63× | Reported |
| 2013-05-31 | $866.00K | (m) | (m) | $218.70K | $112.74K | (m) | (m) | 1.94× | Reported |
| 2013-02-28 | $894.48K | (m) | (m) | $150.61K | $113.93K | (m) | (m) | 1.32× | Reported |
| 2012-11-30 | $1.01M | $10.40M | (m) | $442.32K | $115.23K | 9.72% | (m) | 3.84× | Reported |
| 2012-08-31 | $1.08M | $11.14M | (m) | $619.36K | $116.40K | 9.65% | (m) | 5.32× | Reported |
| 2012-05-31 | $1.13M | $11.90M | (m) | $1.05M | $117.31K | 9.47% | (m) | 8.94× | Reported |
| 2012-02-29 | $1.13M | $12.05M | (m) | $1.26M | $118.11K | 9.36% | (m) | 10.68× | Reported |
| 2011-11-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-08-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-05-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-02-28 | $823.09K | $9.91M | (m) | $602.04K | $7.92K | 8.30% | (m) | 76.01× | Reported |
| 2010-11-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-08-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (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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