BYRNA TECHNOLOGIES INC. (BYRN) Spending and interest coverage
- R&D / revenue · 12 months: Value (m); Formula and calculation Research and development expense / revenue. Period ending 2026-05-31..
- Stock-based compensation / revenue · 12 months: Value 2.65%; 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 | (m) | Research and development expense / revenue. Period ending 2026-05-31. Calculation unavailable: missing inputs remain (m). |
| Stock-based compensation / revenue · 12 months | 2.65% | Share-based compensation / revenue. Period ending 2026-05-31. $2.88M ÷ $108.86M × 100 ≈ 2.65% |
| 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 | 108.86M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 2.88M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | -5.10M 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 | (m) | $108.86M | $2.88M | $-5.10M | (m) | (m) | 2.65% | (m) | (m) |
| 2026-02-28 | (m) | $120.98M | $2.77M | $11.07M | (m) | (m) | 2.29% | (m) | (m) |
| 2025-11-30 | $300.00K | $118.12M | $3.07M | $11.84M | (m) | 0.25% | 2.60% | (m) | (m) |
| 2025-08-31 | (m) | $41.75M | $3.08M | $11.98M | (m) | (m) | 7.39% | (m) | (m) |
| 2025-05-31 | (m) | $34.43M | $3.17M | $9.94M | (m) | (m) | 9.21% | (m) | (m) |
| 2025-02-28 | (m) | $26.19M | $3.31M | $8.53M | (m) | (m) | 12.62% | (m) | (m) |
| 2024-11-30 | $600.00K | $85.76M | $3.40M | $6.67M | (m) | 0.70% | 3.97% | (m) | (m) |
| 2024-08-31 | (m) | $73.42M | $3.30M | $1.71M | (m) | (m) | 4.50% | (m) | (m) |
| 2024-05-31 | (m) | $59.65M | $4.22M | $-3.05M | (m) | (m) | 7.07% | (m) | (m) |
| 2024-02-29 | (m) | $50.89M | $4.85M | $-5.96M | (m) | (m) | 9.53% | (m) | (m) |
| 2023-11-30 | $600.00K | $42.64M | $5.38M | $-7.79M | (m) | 1.41% | 12.60% | (m) | (m) |
| 2023-08-31 | (m) | $43.02M | $6.05M | $-6.95M | (m) | (m) | 14.07% | (m) | (m) |
| 2023-05-31 | (m) | $48.36M | $7.00M | $-4.24M | (m) | (m) | 14.48% | (m) | (m) |
| 2023-02-28 | (m) | $48.47M | $6.08M | $-6.04M | (m) | (m) | 12.54% | (m) | (m) |
| 2022-11-30 | $500.00K | $48.04M | $5.42M | $-7.46M | (m) | 1.04% | 11.29% | (m) | (m) |
| 2022-08-31 | (m) | $43.18M | (m) | $-10.53M | (m) | (m) | (m) | (m) | (m) |
| 2022-05-31 | (m) | $39.46M | (m) | $-10.93M | (m) | (m) | (m) | (m) | (m) |
| 2022-02-28 | (m) | $41.24M | (m) | $-6.29M | (m) | (m) | (m) | (m) | (m) |
| 2021-11-30 | $300.00K | $42.16M | (m) | $-3.29M | (m) | 0.71% | (m) | (m) | (m) |
| 2021-08-31 | (m) | $42.03M | $3.12M | $-1.47M | (m) | (m) | 7.42% | (m) | (m) |
| 2021-05-31 | (m) | $37.52M | $2.15M | $-219.83K | $37.09K | (m) | 5.73% | -5.93× | Reported |
| 2021-02-28 | (m) | $25.31M | $1.31M | $-3.10M | (m) | (m) | 5.17% | (m) | (m) |
| 2020-11-30 | $43.99K | $16.57M | $1.25M | $-4.31M | $233.09K | 0.27% | 7.56% | -18.49× | Reported |
| 2020-08-31 | (m) | $6.04M | $686.04K | $-3.85M | $390.46K | (m) | 11.36% | -9.86× | Reported |
| 2020-05-31 | (m) | $2.15M | $701.35K | $-3.99M | $500.03K | (m) | 32.67% | -7.98× | Reported |
| 2020-02-29 | (m) | $1.06M | $731.27K | $-3.81M | $514.51K | (m) | 68.87% | -7.41× | Reported |
| 2019-11-30 | $158.10K | $924.42K | $218.15K | $-3.30M | $414.36K | 17.10% | 23.60% | -7.97× | Reported |
| 2019-08-31 | (m) | $454.09K | (m) | $-3.52M | (m) | (m) | (m) | (m) | (m) |
| 2019-05-31 | (m) | $200.25K | (m) | $-3.18M | (m) | (m) | (m) | (m) | (m) |
| 2019-02-28 | (m) | $233.22K | (m) | $-2.86M | (m) | (m) | (m) | (m) | (m) |
| 2018-11-30 | (m) | $250.23K | (m) | $-2.04M | (m) | (m) | (m) | (m) | (m) |
| 2018-08-31 | (m) | $302.67K | $62.12K | $-1.36M | (m) | (m) | 20.52% | (m) | (m) |
| 2018-05-31 | (m) | $319.76K | $114.21K | $-1.61M | (m) | (m) | 35.72% | (m) | (m) |
| 2018-02-28 | (m) | $278.19K | (m) | $-1.73M | (m) | (m) | (m) | (m) | (m) |
| 2017-11-30 | (m) | $292.51K | $214.11K | $-1.92M | (m) | (m) | 73.20% | (m) | (m) |
| 2017-08-31 | (m) | $281.12K | $222.83K | $-2.09M | (m) | (m) | 79.26% | (m) | (m) |
| 2017-05-31 | (m) | $241.40K | (m) | $-2.02M | (m) | (m) | (m) | (m) | (m) |
| 2017-02-28 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2016-11-30 | (m) | $154.01K | $28.02K | $-1.69M | (m) | (m) | 18.20% | (m) | (m) |
| 2016-08-31 | (m) | $148.49K | $425.03K | $-2.24M | (m) | (m) | 286.23% | (m) | (m) |
| 2016-05-31 | (m) | $128.62K | (m) | $-2.21M | (m) | (m) | (m) | (m) | (m) |
| 2016-02-29 | (m) | $144.98K | (m) | $-2.21M | (m) | (m) | (m) | (m) | (m) |
| 2015-11-30 | (m) | $151.00K | $422.46K | $-2.32M | (m) | (m) | 279.76% | (m) | (m) |
| 2015-08-31 | (m) | $98.10K | (m) | $-2.36M | (m) | (m) | (m) | (m) | (m) |
| 2015-05-31 | (m) | $87.97K | (m) | $-2.38M | (m) | (m) | (m) | (m) | (m) |
| 2015-02-28 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2014-11-30 | (m) | $42.48K | $751.61K | $-2.65M | (m) | (m) | 1769.33% | (m) | (m) |
| 2014-08-31 | (m) | $59.84K | (m) | $-1.94M | (m) | (m) | (m) | (m) | (m) |
| 2014-05-31 | (m) | $59.22K | (m) | $-1.89M | (m) | (m) | (m) | (m) | (m) |
| 2014-02-28 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2013-11-30 | $0.00 | $30.10K | (m) | $-1.72M | (m) | 0.00% | (m) | (m) | (m) |
| 2013-08-31 | (m) | (m) | $740.16K | $-2.37M | (m) | (m) | (m) | (m) | (m) |
| 2013-05-31 | (m) | (m) | $815.17K | $-2.30M | (m) | (m) | (m) | (m) | (m) |
| 2013-02-28 | (m) | (m) | $754.11K | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-11-30 | (m) | (m) | $929.37K | $-1.86M | (m) | (m) | (m) | (m) | (m) |
| 2012-08-31 | (m) | (m) | $288.45K | $-996.10K | (m) | (m) | (m) | (m) | (m) |
| 2012-05-31 | (m) | (m) | $213.44K | $-863.86K | (m) | (m) | (m) | (m) | (m) |
| 2012-02-29 | (m) | (m) | $213.44K | $-710.23K | (m) | (m) | (m) | (m) | (m) |
| 2011-11-30 | $195.95K | (m) | $0.00 | $-831.28K | (m) | (m) | (m) | (m) | (m) |
| 2011-08-31 | (m) | (m) | $63.48K | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-05-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-02-28 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-11-30 | (m) | (m) | $289.67K | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-08-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-11-30 | (m) | (m) | $177.99K | (m) | (m) | (m) | (m) | (m) | (m) |
| 2008-11-30 | (m) | (m) | $1.23M | (m) | (m) | (m) | (m) | (m) | (m) |
| 2007-11-30 | (m) | (m) | $2.45M | (m) | (m) | (m) | (m) | (m) | (m) |
| 2006-11-30 | (m) | (m) | $1.05M | (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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