Duke Energy CORP (DUK) Spending and interest coverage
- R&D / revenue · 12 months: Value (m); Formula and calculation Research and development expense / revenue. Period ending 2026-03-31..
- Stock-based compensation / revenue · 12 months: Value (m); Formula and calculation Share-based compensation / revenue. Period ending 2026-03-31..
- 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 2026-03-31; 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 2026-03-31. Calculation unavailable: missing inputs remain (m). |
| Stock-based compensation / revenue · 12 months | (m) | Share-based compensation / revenue. Period ending 2026-03-31. Calculation unavailable: missing inputs remain (m). |
| 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 | (m) | Revenue from Contract with Customer, Excluding Assessed Tax |
| Stock-based compensation | (m) | Share-based Payment Arrangement, Noncash Expense |
| Operating income | 9.01B 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-03-31 | (m) | (m) | (m) | $9.01B | (m) | (m) | (m) | (m) | (m) |
| 2025-12-31 | (m) | (m) | (m) | $8.63B | $3.63B | (m) | (m) | 2.37× | Reported |
| 2025-09-30 | (m) | (m) | (m) | $8.62B | (m) | (m) | (m) | (m) | (m) |
| 2025-06-30 | (m) | (m) | (m) | $8.43B | (m) | (m) | (m) | (m) | (m) |
| 2025-03-31 | (m) | (m) | (m) | $8.31B | $3.46B | (m) | (m) | 2.40× | Reported |
| 2024-12-31 | (m) | (m) | (m) | $7.93B | $3.38B | (m) | (m) | 2.34× | Reported |
| 2024-09-30 | (m) | (m) | (m) | $7.67B | (m) | (m) | (m) | (m) | (m) |
| 2024-06-30 | (m) | (m) | (m) | $7.64B | (m) | (m) | (m) | (m) | (m) |
| 2024-03-31 | (m) | (m) | (m) | $7.36B | $3.11B | (m) | (m) | 2.37× | Reported |
| 2023-12-31 | (m) | (m) | (m) | $7.07B | $3.01B | (m) | (m) | 2.35× | Reported |
| 2023-09-30 | (m) | (m) | (m) | $6.41B | $2.90B | (m) | (m) | 2.21× | Reported |
| 2023-06-30 | (m) | (m) | (m) | $6.35B | $2.73B | (m) | (m) | 2.33× | Reported |
| 2023-03-31 | (m) | (m) | (m) | $6.37B | $2.59B | (m) | (m) | 2.46× | Reported |
| 2022-12-31 | (m) | (m) | (m) | $6.01B | $2.44B | (m) | (m) | 2.46× | Reported |
| 2022-09-30 | (m) | (m) | (m) | $5.78B | $2.41B | (m) | (m) | 2.40× | Reported |
| 2022-06-30 | (m) | (m) | (m) | $5.45B | $2.37B | (m) | (m) | 2.30× | Reported |
| 2022-03-31 | (m) | (m) | (m) | $5.20B | $2.33B | (m) | (m) | 2.23× | Reported |
| 2021-12-31 | (m) | (m) | (m) | $5.37B | $2.28B | (m) | (m) | 2.36× | Reported |
| 2021-09-30 | (m) | (m) | (m) | $4.38B | $2.22B | (m) | (m) | 1.97× | Reported |
| 2021-06-30 | (m) | (m) | (m) | $4.51B | $2.16B | (m) | (m) | 2.08× | Reported |
| 2021-03-31 | (m) | (m) | (m) | $4.51B | $2.15B | (m) | (m) | 2.10× | Reported |
| 2020-12-31 | (m) | (m) | (m) | $4.55B | $2.16B | (m) | (m) | 2.11× | Reported |
| 2020-09-30 | (m) | (m) | (m) | $5.59B | $2.17B | (m) | (m) | 2.57× | Reported |
| 2020-06-30 | (m) | (m) | (m) | $5.70B | $2.22B | (m) | (m) | 2.56× | Reported |
| 2020-03-31 | (m) | (m) | (m) | $5.82B | $2.21B | (m) | (m) | 2.63× | Reported |
| 2019-12-31 | (m) | (m) | (m) | $5.71B | $2.20B | (m) | (m) | 2.59× | Reported |
| 2019-09-30 | (m) | (m) | (m) | $5.47B | $2.20B | (m) | (m) | 2.49× | Reported |
| 2019-06-30 | (m) | (m) | (m) | $5.12B | $2.15B | (m) | (m) | 2.39× | Reported |
| 2019-03-31 | (m) | (m) | (m) | $4.80B | $2.12B | (m) | (m) | 2.26× | Reported |
| 2018-12-31 | (m) | (m) | (m) | $4.68B | $2.09B | (m) | (m) | 2.24× | Reported |
| 2018-09-30 | (m) | (m) | (m) | $5.18B | $2.06B | (m) | (m) | 2.51× | Reported |
| 2018-06-30 | (m) | (m) | (m) | $5.26B | $2.04B | (m) | (m) | 2.58× | Reported |
| 2018-03-31 | (m) | (m) | (m) | $5.63B | $2.01B | (m) | (m) | 2.80× | Reported |
| 2017-12-31 | (m) | (m) | (m) | $5.78B | $1.99B | (m) | (m) | 2.91× | Reported |
| 2017-09-30 | (m) | (m) | (m) | $5.41B | $1.96B | (m) | (m) | 2.76× | Reported |
| 2017-06-30 | (m) | (m) | (m) | $5.67B | $1.93B | (m) | (m) | 2.94× | Reported |
| 2017-03-31 | (m) | (m) | (m) | $5.54B | $1.92B | (m) | (m) | 2.89× | Reported |
| 2016-12-31 | (m) | $22.74B | (m) | $5.34B | $1.92B | (m) | (m) | 2.79× | Reported |
| 2016-09-30 | (m) | $23.25B | (m) | $5.48B | $1.90B | (m) | (m) | 2.89× | Reported |
| 2016-06-30 | (m) | $22.91B | (m) | $5.14B | $1.82B | (m) | (m) | 2.83× | Reported |
| 2016-03-31 | (m) | $23.02B | (m) | $5.24B | $1.72B | (m) | (m) | 3.05× | Reported |
| 2015-12-31 | (m) | $23.46B | (m) | $5.37B | $1.61B | (m) | (m) | 3.33× | Reported |
| 2015-09-30 | (m) | $23.70B | (m) | $5.38B | $1.62B | (m) | (m) | 3.32× | Reported |
| 2015-06-30 | (m) | $23.61B | (m) | $5.31B | $1.62B | (m) | (m) | 3.28× | Reported |
| 2015-03-31 | (m) | $23.73B | (m) | $5.35B | $1.62B | (m) | (m) | 3.30× | Reported |
| 2014-12-31 | (m) | $23.93B | (m) | $5.26B | $1.62B | (m) | (m) | 3.24× | Reported |
| 2014-09-30 | (m) | $25.83B | (m) | $5.59B | $1.63B | (m) | (m) | 3.42× | Reported |
| 2014-06-30 | (m) | $25.39B | (m) | $4.12B | $1.62B | (m) | (m) | 2.55× | Reported |
| 2014-03-31 | (m) | $25.32B | (m) | $3.83B | $1.58B | (m) | (m) | 2.41× | Reported |
| 2013-12-31 | (m) | $24.60B | (m) | $4.98B | $1.55B | (m) | (m) | 3.22× | Reported |
| 2013-09-30 | (m) | $24.18B | (m) | $4.55B | $1.51B | (m) | (m) | 3.01× | Reported |
| 2013-06-30 | (m) | $24.19B | (m) | $3.88B | $1.53B | (m) | (m) | 2.53× | Reported |
| 2013-03-31 | (m) | $21.89B | (m) | $3.85B | $1.39B | (m) | (m) | 2.78× | Reported |
| 2012-12-31 | (m) | $19.62B | (m) | $3.13B | $1.24B | (m) | (m) | 2.52× | Reported |
| 2012-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2012-03-31 | (m) | $14.50B | (m) | $2.46B | $864.00M | (m) | (m) | 2.84× | Reported |
| 2011-12-31 | (m) | $14.53B | (m) | $2.78B | $859.00M | (m) | (m) | 3.23× | Reported |
| 2011-09-30 | (m) | $14.61B | $59.00M | $2.94B | $851.00M | (m) | 0.40% | 3.46× | Reported |
| 2011-06-30 | (m) | $14.59B | $66.00M | $3.21B | $840.00M | (m) | 0.45% | 3.82× | Reported |
| 2011-03-31 | (m) | $14.34B | $67.00M | $2.51B | $849.00M | (m) | 0.47% | 2.96× | Reported |
| 2010-12-31 | (m) | $14.27B | $67.00M | $2.46B | $840.00M | (m) | 0.47% | 2.93× | Reported |
| 2010-09-30 | (m) | $13.94B | (m) | $2.38B | $815.00M | (m) | (m) | 2.91× | Reported |
| 2010-06-30 | (m) | $13.39B | (m) | $1.79B | $803.00M | (m) | (m) | 2.23× | Reported |
| 2010-03-31 | (m) | $13.01B | (m) | $2.33B | (m) | (m) | (m) | (m) | (m) |
| 2009-12-31 | (m) | $12.73B | (m) | $2.25B | $751.00M | (m) | (m) | 2.99× | Reported |
| 2009-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2009-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2008-12-31 | (m) | $13.21B | (m) | $2.51B | $741.00M | (m) | (m) | 3.39× | Reported |
| 2008-09-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2008-06-30 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2007-12-31 | (m) | $12.72B | (m) | $2.49B | $685.00M | (m) | (m) | 3.64× | 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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