AMEREN CORP (AEE) Spending and interest coverage
- R&D / revenue · 12 months: Value (m); Formula and calculation Research and development expense / revenue. Period ending 2026-06-30..
- Stock-based compensation / revenue · 12 months: Value 0.34%; Formula and calculation Share-based compensation / revenue. Period ending 2026-06-30..
- Interest coverage · 12 months: Value 2.63×; Formula and calculation Operating income ÷ reported interest expense..
Spending and interest coverage
Overview →Financial period ending 2026-06-30; 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 2026-06-30. Calculation unavailable: missing inputs remain (m). |
| Stock-based compensation / revenue · 12 months | 0.34% | Share-based compensation / revenue. Period ending 2026-06-30. $30.00M ÷ $8.75B × 100 ≈ 0.34% |
| Interest coverage · 12 months | 2.63× | Operating income ÷ reported interest expense. $2.18B ÷ $827.00M ≈ 2.63× |
Calculation inputs
| Input | Amount with unit | Raw financial data |
|---|---|---|
| Research and development spending | (m) | |
| Revenue | 8.75B USD | |
| Stock-based compensation | 30.00M USD | Share-based Payment Arrangement, Noncash Expense |
| Operating income | 2.18B USD | Operating Income (Loss) |
| Interest expense · reported / estimated | 827.00M 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 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | (m) | $8.75B | $30.00M | $2.18B | $827.00M | (m) | 0.34% | 2.63× | Reported |
| 2026-03-31 | (m) | $8.88B | $29.00M | $2.13B | $805.00M | (m) | 0.33% | 2.64× | Reported |
| 2025-12-31 | (m) | $8.80B | $28.00M | $2.03B | $776.00M | (m) | 0.32% | 2.61× | Reported |
| 2025-09-30 | (m) | $8.96B | $27.00M | $1.86B | $741.00M | (m) | 0.30% | 2.52× | Reported |
| 2025-06-30 | (m) | $8.43B | $28.00M | $1.63B | $706.00M | (m) | 0.33% | 2.30× | Reported |
| 2025-03-31 | (m) | $7.90B | $27.00M | $1.57B | $684.00M | (m) | 0.34% | 2.30× | Reported |
| 2024-12-31 | (m) | $7.62B | $28.00M | $1.52B | $663.00M | (m) | 0.37% | 2.29× | Reported |
| 2024-09-30 | (m) | $7.30B | $27.00M | $1.58B | $645.00M | (m) | 0.37% | 2.45× | Reported |
| 2024-06-30 | (m) | $7.19B | $26.00M | $1.61B | $624.00M | (m) | 0.36% | 2.58× | Reported |
| 2024-03-31 | (m) | $7.25B | $26.00M | $1.58B | $593.00M | (m) | 0.36% | 2.66× | Reported |
| 2023-12-31 | (m) | $7.50B | $26.00M | $1.56B | $566.00M | (m) | 0.35% | 2.75× | Reported |
| 2023-09-30 | (m) | $7.93B | $27.00M | $1.57B | $543.00M | (m) | 0.34% | 2.89× | Reported |
| 2023-06-30 | (m) | $8.17B | $26.00M | $1.55B | $517.00M | (m) | 0.32% | 3.01× | Reported |
| 2023-03-31 | (m) | $8.14B | $28.00M | $1.53B | $509.00M | (m) | 0.34% | 3.02× | Reported |
| 2022-12-31 | (m) | $7.96B | $24.00M | $1.51B | $486.00M | (m) | 0.30% | 3.12× | Reported |
| 2022-09-30 | (m) | $7.46B | $23.00M | $1.44B | $449.00M | (m) | 0.31% | 3.20× | Reported |
| 2022-06-30 | (m) | $6.96B | $23.00M | $1.37B | $417.00M | (m) | 0.33% | 3.29× | Reported |
| 2022-03-31 | (m) | $6.71B | $20.00M | $1.35B | $387.00M | (m) | 0.30% | 3.48× | Reported |
| 2021-12-31 | (m) | $6.39B | $22.00M | $1.33B | $383.00M | (m) | 0.34% | 3.48× | Reported |
| 2021-09-30 | (m) | (m) | $22.00M | $1.35B | $398.00M | (m) | (m) | 3.38× | Reported |
| 2021-06-30 | (m) | (m) | $21.00M | $1.31B | $414.00M | (m) | (m) | 3.16× | Reported |
| 2021-03-31 | (m) | (m) | $21.00M | $1.38B | $426.00M | (m) | (m) | 3.23× | Reported |
| 2020-12-31 | (m) | (m) | $21.00M | $1.30B | $419.00M | (m) | (m) | 3.10× | Reported |
| 2020-09-30 | (m) | (m) | $21.00M | $1.27B | $402.00M | (m) | (m) | 3.15× | Reported |
| 2020-06-30 | (m) | (m) | $21.00M | $1.29B | $388.00M | (m) | (m) | 3.34× | Reported |
| 2020-03-31 | (m) | (m) | $20.00M | $1.22B | $377.00M | (m) | (m) | 3.24× | Reported |
| 2019-12-31 | (m) | (m) | $20.00M | $1.27B | $381.00M | (m) | (m) | 3.33× | Reported |
| 2019-09-30 | (m) | $5.99B | $20.00M | $1.25B | $389.00M | (m) | 0.33% | 3.22× | Reported |
| 2019-06-30 | (m) | $6.08B | $20.00M | $1.27B | $394.00M | (m) | 0.33% | 3.22× | Reported |
| 2019-03-31 | (m) | $6.26B | $20.00M | $1.37B | $397.00M | (m) | 0.32% | 3.46× | Reported |
| 2018-12-31 | (m) | $6.29B | $20.00M | $1.36B | $401.00M | (m) | 0.32% | 3.38× | Reported |
| 2018-09-30 | (m) | $6.27B | $20.00M | $1.45B | $398.00M | (m) | 0.32% | 3.65× | Reported |
| 2018-06-30 | (m) | $6.27B | $19.00M | $1.49B | $394.00M | (m) | 0.30% | 3.77× | Reported |
| 2018-03-31 | (m) | $6.25B | $19.00M | $1.49B | $393.00M | (m) | 0.30% | 3.79× | Reported |
| 2017-12-31 | (m) | $6.18B | $17.00M | $1.46B | $391.00M | (m) | 0.28% | 3.73× | Reported |
| 2017-09-30 | (m) | $6.13B | $12.00M | $1.38B | $390.00M | (m) | 0.20% | 3.53× | Reported |
| 2017-06-30 | (m) | $6.27B | $13.00M | $1.49B | $390.00M | (m) | 0.21% | 3.82× | Reported |
| 2017-03-31 | (m) | $6.16B | $15.00M | $1.42B | $386.00M | (m) | 0.24% | 3.67× | Reported |
| 2016-12-31 | (m) | $6.08B | $17.00M | $1.38B | $382.00M | (m) | 0.28% | 3.62× | Reported |
| 2016-09-30 | (m) | $6.03B | $21.00M | $1.38B | $378.00M | (m) | 0.35% | 3.64× | Reported |
| 2016-06-30 | (m) | $6.00B | $22.00M | $1.31B | $368.00M | (m) | 0.37% | 3.56× | Reported |
| 2016-03-31 | (m) | $5.98B | $22.00M | $1.22B | $362.00M | (m) | 0.37% | 3.38× | Reported |
| 2015-12-31 | (m) | $6.10B | $24.00M | $1.26B | $355.00M | (m) | 0.39% | 3.55× | Reported |
| 2015-09-30 | (m) | $6.16B | $25.00M | $1.24B | $339.00M | (m) | 0.41% | 3.67× | Reported |
| 2015-06-30 | (m) | $6.00B | $24.00M | $1.18B | $337.00M | (m) | 0.40% | 3.50× | Reported |
| 2015-03-31 | (m) | $6.01B | $24.00M | $1.26B | $337.00M | (m) | 0.40% | 3.75× | Reported |
| 2014-12-31 | (m) | $6.05B | $25.00M | $1.25B | $341.00M | (m) | 0.41% | 3.68× | Reported |
| 2014-09-30 | (m) | $6.00B | $28.00M | $1.30B | $375.00M | (m) | 0.47% | 3.47× | Reported |
| 2014-06-30 | (m) | $5.97B | $28.00M | $1.31B | $378.00M | (m) | 0.47% | 3.46× | Reported |
| 2014-03-31 | (m) | $5.96B | $27.00M | $1.25B | $389.00M | (m) | 0.45% | 3.20× | Reported |
| 2013-12-31 | (m) | $5.84B | $27.00M | $1.18B | $398.00M | (m) | 0.46% | 2.97× | Reported |
| 2013-09-30 | (m) | $5.77B | $25.00M | $1.12B | $385.00M | (m) | 0.43% | 2.92× | Reported |
| 2013-06-30 | (m) | $6.89B | (m) | $-1.30B | $453.00M | (m) | (m) | -2.86× | Reported |
| 2013-03-31 | (m) | $6.89B | (m) | $-1.21B | $451.00M | (m) | (m) | -2.69× | Reported |
| 2012-12-31 | (m) | $6.83B | (m) | $-1.24B | $448.00M | (m) | (m) | -2.77× | Reported |
| 2012-09-30 | (m) | $6.90B | (m) | $724.00M | (m) | (m) | (m) | (m) | (m) |
| 2012-06-30 | (m) | $7.16B | (m) | $639.00M | (m) | (m) | (m) | (m) | (m) |
| 2012-03-31 | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) | (m) |
| 2011-12-31 | (m) | $7.53B | (m) | $1.24B | $451.00M | (m) | (m) | 2.75× | Reported |
| 2011-09-30 | (m) | $7.66B | (m) | $1.29B | $456.00M | (m) | (m) | 2.83× | Reported |
| 2011-06-30 | (m) | $7.66B | (m) | $830.00M | $473.00M | (m) | (m) | 1.75× | Reported |
| 2011-03-31 | (m) | $7.60B | (m) | $845.00M | $484.00M | (m) | (m) | 1.75× | Reported |
| 2010-12-31 | (m) | $7.64B | (m) | $916.00M | $497.00M | (m) | (m) | 1.84× | Reported |
| 2010-09-30 | (m) | $7.55B | (m) | $963.00M | $509.00M | (m) | (m) | 1.89× | Reported |
| 2010-06-30 | (m) | $7.11B | (m) | $1.36B | $513.00M | (m) | (m) | 2.65× | Reported |
| 2010-03-31 | (m) | $7.09B | (m) | $1.39B | $522.00M | (m) | (m) | 2.67× | Reported |
| 2009-12-31 | (m) | $7.09B | (m) | $1.42B | $508.00M | (m) | (m) | 2.79× | 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) | $7.84B | (m) | $1.36B | $440.00M | (m) | (m) | 3.10× | 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) | $7.56B | (m) | $1.36B | $423.00M | (m) | (m) | 3.21× | 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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