RICHARDSON ELECTRONICS, LTD. (RELL) Spending and interest coverage
- R&D / revenue · 12 months: Value (m); Formula and calculation Research and development expense / revenue. Period ending 2026-05-30..
- Stock-based compensation / revenue · 12 months: Value 0.71%; Formula and calculation Share-based compensation / revenue. Period ending 2026-05-30..
- 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 2026-05-30; 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 2026-05-30. Calculation unavailable: missing inputs remain (m). |
| Stock-based compensation / revenue · 12 months | 0.71% | Share-based compensation / revenue. Period ending 2026-05-30. $1.62M ÷ $228.56M × 100 ≈ 0.71% |
| 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) | |
| Revenue | 228.56M USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 1.62M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | 6.46M 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-05-30 | (m) | $228.56M | $1.62M | $6.46M | (m) | (m) | 0.71% | (m) | (m) |
| 2026-02-28 | (m) | $214.26M | $1.61M | $3.23M | (m) | (m) | 0.75% | (m) | (m) |
| 2025-11-29 | (m) | $212.59M | $1.60M | $-1.01M | (m) | (m) | 0.75% | (m) | (m) |
| 2025-08-30 | (m) | $209.79M | $1.59M | $-1.81M | (m) | (m) | 0.76% | (m) | (m) |
| 2025-05-31 | (m) | $208.91M | $1.54M | $-2.46M | (m) | (m) | 0.74% | (m) | (m) |
| 2025-03-01 | (m) | $204.39M | $1.51M | $-3.21M | (m) | (m) | 0.74% | (m) | (m) |
| 2024-11-30 | (m) | $202.97M | $1.47M | $541.00K | (m) | (m) | 0.72% | (m) | (m) |
| 2024-08-31 | (m) | $197.60M | $1.44M | $-808.00K | (m) | (m) | 0.73% | (m) | (m) |
| 2024-06-01 | (m) | $196.46M | $1.33M | $348.00K | (m) | (m) | 0.67% | (m) | (m) |
| 2024-03-02 | (m) | $207.92M | $1.25M | $1.85M | (m) | (m) | 0.60% | (m) | (m) |
| 2023-12-02 | (m) | $225.91M | $1.18M | $8.46M | (m) | (m) | 0.52% | (m) | (m) |
| 2023-09-02 | (m) | $247.68M | $1.11M | $17.68M | (m) | (m) | 0.45% | (m) | (m) |
| 2023-05-27 | (m) | $262.66M | $936.00K | $24.98M | (m) | (m) | 0.36% | (m) | (m) |
| 2023-02-25 | (m) | $265.45M | $870.00K | $28.58M | (m) | (m) | 0.33% | (m) | (m) |
| 2022-11-26 | (m) | $250.40M | $806.00K | $24.59M | (m) | (m) | 0.32% | (m) | (m) |
| 2022-08-27 | (m) | $238.47M | $746.00K | $21.91M | (m) | (m) | 0.31% | (m) | (m) |
| 2022-05-28 | (m) | $224.62M | $654.00K | $15.96M | (m) | (m) | 0.29% | (m) | (m) |
| 2022-02-26 | (m) | (m) | $660.00K | $13.31M | (m) | (m) | (m) | (m) | (m) |
| 2021-11-27 | (m) | $203.39M | $668.00K | $10.00M | (m) | (m) | 0.33% | (m) | (m) |
| 2021-08-28 | (m) | $191.83M | $693.00K | $6.33M | (m) | (m) | 0.36% | (m) | (m) |
| 2021-05-29 | (m) | $176.94M | $675.00K | $2.89M | (m) | (m) | 0.38% | (m) | (m) |
| 2021-02-27 | (m) | $163.83M | $685.00K | $-740.00K | (m) | (m) | 0.42% | (m) | (m) |
| 2020-11-28 | (m) | $156.84M | $692.00K | $-1.04M | (m) | (m) | 0.44% | (m) | (m) |
| 2020-08-29 | (m) | $154.06M | $696.00K | $-2.38M | (m) | (m) | 0.45% | (m) | (m) |
| 2020-05-30 | (m) | $155.90M | $683.00K | $-1.66M | (m) | (m) | 0.44% | (m) | (m) |
| 2020-02-29 | (m) | $160.70M | $653.00K | $-6.75M | (m) | (m) | 0.41% | (m) | (m) |
| 2019-11-30 | (m) | $161.47M | $672.00K | $-7.55M | (m) | (m) | 0.42% | (m) | (m) |
| 2019-08-31 | (m) | $163.15M | $720.00K | $-7.53M | (m) | (m) | 0.44% | (m) | (m) |
| 2019-06-01 | (m) | $166.65M | $697.00K | $-6.78M | (m) | (m) | 0.42% | (m) | (m) |
| 2019-03-02 | (m) | $169.98M | $679.00K | $1.48M | (m) | (m) | 0.40% | (m) | (m) |
| 2018-12-01 | (m) | $172.61M | $619.00K | $3.24M | (m) | (m) | 0.36% | (m) | (m) |
| 2018-09-01 | (m) | $170.37M | $597.00K | $4.47M | (m) | (m) | 0.35% | (m) | (m) |
| 2018-06-02 | (m) | $163.21M | $533.00K | $3.63M | (m) | (m) | 0.33% | (m) | (m) |
| 2018-03-03 | (m) | $155.08M | $508.00K | $1.79M | (m) | (m) | 0.33% | (m) | (m) |
| 2017-12-02 | (m) | $145.75M | $467.00K | $-484.00K | (m) | (m) | 0.32% | (m) | (m) |
| 2017-09-02 | (m) | $140.49M | $435.00K | $-3.66M | (m) | (m) | 0.31% | (m) | (m) |
| 2017-05-27 | (m) | $136.87M | $437.00K | $-5.76M | (m) | (m) | 0.32% | (m) | (m) |
| 2017-02-25 | (m) | $139.08M | $468.00K | $-6.11M | (m) | (m) | 0.34% | (m) | (m) |
| 2016-11-26 | (m) | $138.06M | $512.00K | $-7.52M | (m) | (m) | 0.37% | (m) | (m) |
| 2016-08-27 | (m) | $138.32M | $561.00K | $-7.64M | (m) | (m) | 0.41% | (m) | (m) |
| 2016-05-28 | (m) | $142.02M | $548.00K | $-6.55M | (m) | (m) | 0.39% | (m) | (m) |
| 2016-02-27 | (m) | $137.39M | $631.00K | $-8.89M | (m) | (m) | 0.46% | (m) | (m) |
| 2015-11-28 | (m) | $139.57M | $655.00K | $-8.92M | (m) | (m) | 0.47% | (m) | (m) |
| 2015-08-29 | (m) | $139.33M | $696.00K | $-8.56M | (m) | (m) | 0.50% | (m) | (m) |
| 2015-05-30 | (m) | $136.96M | $726.00K | $-8.09M | (m) | (m) | 0.53% | (m) | (m) |
| 2015-02-28 | (m) | $137.39M | $703.00K | $-9.37M | (m) | (m) | 0.51% | (m) | (m) |
| 2014-11-29 | (m) | $136.81M | $761.00K | $-7.50M | (m) | (m) | 0.56% | (m) | (m) |
| 2014-08-30 | (m) | $138.40M | $765.00K | $-4.81M | (m) | (m) | 0.55% | (m) | (m) |
| 2014-05-31 | (m) | $137.96M | $759.00K | $-4.15M | (m) | (m) | 0.55% | (m) | (m) |
| 2014-03-01 | (m) | $137.76M | $791.00K | $-1.82M | (m) | (m) | 0.57% | (m) | (m) |
| 2013-11-30 | (m) | $138.51M | $671.00K | $-345.00K | (m) | (m) | 0.48% | (m) | (m) |
| 2013-08-31 | (m) | $139.67M | $609.00K | $-367.00K | (m) | (m) | 0.44% | (m) | (m) |
| 2013-06-01 | (m) | $141.07M | $619.00K | $11.00K | (m) | (m) | 0.44% | (m) | (m) |
| 2013-03-02 | (m) | $144.74M | $501.00K | $2.30M | (m) | (m) | 0.35% | (m) | (m) |
| 2012-12-01 | (m) | $149.44M | $551.00K | $3.55M | (m) | (m) | 0.37% | (m) | (m) |
| 2012-09-01 | (m) | $151.97M | $450.00K | $4.76M | (m) | (m) | 0.30% | (m) | (m) |
| 2012-06-02 | (m) | $157.84M | $481.00K | $6.25M | $1.00K | (m) | 0.30% | 6255.00× | Reported |
| 2012-03-03 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-12-03 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-09-03 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-05-28 | (m) | $158.87M | $1.19M | $2.85M | $141.00K | (m) | 0.75% | 20.18× | Reported |
| 2011-02-26 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-11-27 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-08-28 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-05-29 | (m) | $135.37M | $657.00K | $-1.92M | $1.18M | (m) | 0.49% | -1.63× | 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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