CARMAX, INC. (KMX) 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 0.36%; Formula and calculation Share-based compensation / revenue. Period ending 2026-05-31..
- Interest coverage · 12 months: Value (m); Formula and calculation Operating income ÷ reported interest expense..
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 | 0.36% | Share-based compensation / revenue. Period ending 2026-05-31. $93.98M ÷ $26.35B × 100 ≈ 0.36% |
| Interest coverage · 12 months | (m) | Operating income ÷ reported interest expense. Calculation unavailable: missing inputs remain (m). |
Calculation inputs
| Input | Amount with unit | Raw financial data |
|---|---|---|
| Research and development spending | (m) | |
| Revenue | 26.35B USD | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | 93.98M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | (m) | |
| Interest expense · reported / estimated | 117.14M USD | Interest Expense · Estimated expense assumptions |
Latest interest expense basis: Reported. 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) | $26.35B | $93.98M | (m) | $117.14M | (m) | 0.36% | (m) | Reported |
| 2026-02-28 | (m) | $25.88B | $99.02M | (m) | $110.39M | (m) | 0.38% | (m) | Reported |
| 2025-11-30 | (m) | $25.94B | $114.95M | (m) | $105.78M | (m) | 0.44% | (m) | Reported |
| 2025-08-31 | (m) | $26.37B | $123.26M | (m) | $105.08M | (m) | 0.47% | (m) | Reported |
| 2025-05-31 | (m) | $26.79B | $133.59M | (m) | $103.65M | (m) | 0.50% | (m) | Reported |
| 2025-02-28 | (m) | $26.35B | $134.71M | (m) | $107.94M | (m) | 0.51% | (m) | Reported |
| 2024-11-30 | (m) | $25.98B | $136.36M | (m) | $115.23M | (m) | 0.52% | (m) | Reported |
| 2024-08-31 | (m) | $25.90B | $132.98M | (m) | $121.08M | (m) | 0.51% | (m) | Reported |
| 2024-05-31 | (m) | $25.96B | $131.43M | (m) | $125.65M | (m) | 0.51% | (m) | Reported |
| 2024-02-29 | (m) | $26.54B | $119.72M | (m) | $124.75M | (m) | 0.45% | (m) | Reported |
| 2023-11-30 | (m) | $26.63B | $111.10M | (m) | $122.04M | (m) | 0.42% | (m) | Reported |
| 2023-08-31 | (m) | $26.99B | $108.03M | (m) | $120.93M | (m) | 0.40% | (m) | Reported |
| 2023-05-31 | (m) | $28.06B | $99.53M | (m) | $122.09M | (m) | 0.35% | (m) | Reported |
| 2023-02-28 | (m) | $29.68B | $85.59M | (m) | $120.40M | (m) | 0.29% | (m) | Reported |
| 2022-11-30 | (m) | $31.65B | $65.21M | (m) | $118.52M | (m) | 0.21% | (m) | Reported |
| 2022-08-31 | (m) | $33.67B | $83.43M | (m) | $112.67M | (m) | 0.25% | (m) | Reported |
| 2022-05-31 | (m) | $33.51B | $90.57M | (m) | $102.34M | (m) | 0.27% | (m) | Reported |
| 2022-02-28 | (m) | $31.90B | $109.20M | (m) | $94.09M | (m) | 0.34% | (m) | Reported |
| 2021-11-30 | (m) | $29.38B | $156.91M | (m) | $87.54M | (m) | 0.53% | (m) | Reported |
| 2021-08-31 | (m) | $26.04B | $131.88M | (m) | $82.69M | (m) | 0.51% | (m) | Reported |
| 2021-05-31 | (m) | $23.42B | $137.92M | (m) | $82.75M | (m) | 0.59% | (m) | Reported |
| 2021-02-28 | (m) | $18.95B | $121.90M | (m) | $86.18M | (m) | 0.64% | (m) | Reported |
| 2020-11-30 | (m) | $18.75B | $84.63M | (m) | $88.20M | (m) | 0.45% | (m) | Reported |
| 2020-08-31 | (m) | $18.35B | $102.77M | (m) | $90.58M | (m) | 0.56% | (m) | Reported |
| 2020-05-31 | (m) | $18.18B | $88.89M | (m) | $89.18M | (m) | 0.49% | (m) | Reported |
| 2020-02-29 | (m) | $20.32B | $108.86M | (m) | $83.01M | (m) | 0.54% | (m) | Reported |
| 2019-11-30 | (m) | $19.68B | $111.78M | (m) | $81.68M | (m) | 0.57% | (m) | Reported |
| 2019-08-31 | (m) | $19.18B | $89.66M | (m) | $78.65M | (m) | 0.47% | (m) | Reported |
| 2019-05-31 | (m) | $18.75B | $91.04M | (m) | $75.52M | (m) | 0.49% | (m) | Reported |
| 2019-02-28 | (m) | $18.17B | $75.01M | (m) | $75.79M | (m) | 0.41% | (m) | Reported |
| 2018-11-30 | (m) | $17.94B | $70.92M | (m) | $74.48M | (m) | 0.40% | (m) | Reported |
| 2018-08-31 | (m) | $17.75B | $79.53M | (m) | $73.07M | (m) | 0.45% | (m) | Reported |
| 2018-05-31 | (m) | $17.37B | $72.15M | (m) | $71.96M | (m) | 0.42% | (m) | Reported |
| 2018-02-28 | (m) | $17.12B | $61.88M | (m) | $70.75M | (m) | 0.36% | (m) | Reported |
| 2017-11-30 | (m) | $17.09B | $71.93M | (m) | $67.43M | (m) | 0.42% | (m) | Reported |
| 2017-08-31 | (m) | $16.68B | $67.62M | (m) | $65.10M | (m) | 0.41% | (m) | Reported |
| 2017-05-31 | (m) | $16.29B | $78.88M | (m) | $62.17M | (m) | 0.48% | (m) | Reported |
| 2017-02-28 | (m) | $15.88B | $91.59M | (m) | $56.42M | (m) | 0.58% | (m) | Reported |
| 2016-11-30 | (m) | $15.53B | $77.82M | (m) | $51.85M | (m) | 0.50% | (m) | Reported |
| 2016-08-31 | (m) | $15.37B | $78.13M | (m) | $46.80M | (m) | 0.51% | (m) | Reported |
| 2016-05-31 | (m) | $15.26B | $59.10M | (m) | $40.34M | (m) | 0.39% | (m) | Reported |
| 2016-02-29 | (m) | $15.15B | $51.08M | (m) | $36.36M | (m) | 0.34% | (m) | Reported |
| 2015-11-30 | (m) | $14.96B | $69.97M | (m) | $26.76M | (m) | 0.47% | (m) | Reported |
| 2015-08-31 | (m) | $14.82B | $77.61M | (m) | $24.07M | (m) | 0.52% | (m) | Reported |
| 2015-05-31 | (m) | $14.53B | $89.90M | (m) | $23.98M | (m) | 0.62% | (m) | Reported |
| 2015-02-28 | (m) | $14.27B | $81.88M | (m) | $24.47M | (m) | 0.57% | (m) | Reported |
| 2014-11-30 | (m) | $13.83B | $68.72M | (m) | $29.84M | (m) | 0.50% | (m) | Reported |
| 2014-08-31 | (m) | $13.37B | $66.26M | (m) | $30.15M | (m) | 0.50% | (m) | Reported |
| 2014-05-31 | (m) | $13.01B | $58.93M | (m) | $30.56M | (m) | 0.45% | (m) | Reported |
| 2014-02-28 | (m) | $12.57B | (m) | (m) | $30.83M | (m) | (m) | (m) | Reported |
| 2013-11-30 | (m) | $12.33B | $70.46M | (m) | $31.29M | (m) | 0.57% | (m) | Reported |
| 2013-08-31 | (m) | $11.99B | $69.91M | (m) | $31.70M | (m) | 0.58% | (m) | Reported |
| 2013-05-31 | (m) | $11.50B | $69.46M | (m) | $32.09M | (m) | 0.60% | (m) | Reported |
| 2013-02-28 | (m) | $10.96B | $62.11M | (m) | $32.36M | (m) | 0.57% | (m) | Reported |
| 2012-11-30 | (m) | $10.61B | $57.54M | (m) | $32.71M | (m) | 0.54% | (m) | Reported |
| 2012-08-31 | (m) | $10.27B | $51.99M | (m) | $33.01M | (m) | 0.51% | (m) | Reported |
| 2012-05-31 | (m) | $10.10B | $48.67M | (m) | $33.32M | (m) | 0.48% | (m) | Reported |
| 2012-02-29 | (m) | $10.00B | $48.09M | (m) | $33.71M | (m) | 0.48% | (m) | Reported |
| 2011-11-30 | (m) | $9.78B | $47.15M | (m) | $3.18M | (m) | 0.48% | (m) | Reported |
| 2011-08-31 | (m) | $9.64B | $47.95M | (m) | $3.20M | (m) | 0.50% | (m) | Reported |
| 2011-05-31 | (m) | $9.39B | $45.16M | (m) | $3.83M | (m) | 0.48% | (m) | Reported |
| 2011-02-28 | (m) | $8.98B | $43.61M | (m) | $3.11M | (m) | 0.49% | (m) | 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) |
| 2010-05-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2010-02-28 | (m) | $7.47B | $37.86M | (m) | $3.46M | (m) | 0.51% | (m) | Reported |
| 2009-11-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-08-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-02-28 | (m) | $6.97B | $35.44M | (m) | $6.09M | (m) | 0.51% | (m) | 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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