SR Spending and interest coverage

Spire Inc. (SR) 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 2.47×; Formula and calculation Operating income ÷ reported interest expense..

Spending and interest coverage

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	2.47×	Operating income ÷ reported interest expense. $576.50M ÷ $233.20M ≈ 2.47×

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)
Operating income	576.50M USD	Operating Income (Loss)
Interest expense · reported / estimated	233.20M 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
2026-03-31	(m)	(m)	(m)	$576.50M	$233.20M	(m)	(m)	2.47×	Reported
2025-12-31	(m)	$2.57B	(m)	$548.60M	$216.50M	(m)	(m)	2.53×	Reported
2025-09-30	(m)	$2.48B	(m)	$523.90M	$204.10M	(m)	(m)	2.57×	Reported
2025-06-30	(m)	$2.44B	(m)	$544.20M	$194.80M	(m)	(m)	2.79×	Reported
2025-03-31	(m)	$2.43B	(m)	$505.70M	$193.70M	(m)	(m)	2.61×	Reported
2024-12-31	(m)	$2.51B	(m)	$497.90M	$198.50M	(m)	(m)	2.51×	Reported
2024-09-30	(m)	$2.59B	(m)	$488.30M	$201.10M	(m)	(m)	2.43×	Reported
2024-06-30	(m)	$2.61B	(m)	$464.60M	$199.80M	(m)	(m)	2.33×	Reported
2024-03-31	(m)	$2.61B	(m)	$445.90M	$197.70M	(m)	(m)	2.26×	Reported
2023-12-31	(m)	$2.61B	(m)	$407.60M	$192.70M	(m)	(m)	2.12×	Reported
2023-09-30	(m)	$2.67B	(m)	$418.60M	$185.70M	(m)	(m)	2.25×	Reported
2023-06-30	(m)	$2.67B	(m)	$452.30M	$171.90M	(m)	(m)	2.63×	Reported
2023-03-31	(m)	$2.70B	(m)	$478.20M	$154.50M	(m)	(m)	3.10×	Reported
2022-12-31	(m)	$2.46B	(m)	$463.10M	(m)	(m)	(m)	(m)	(m)
2022-09-30	(m)	$2.20B	(m)	$408.20M	$119.80M	(m)	(m)	3.41×	Reported
2022-06-30	(m)	$2.17B	(m)	$405.10M	$113.60M	(m)	(m)	3.57×	Reported
2022-03-31	(m)	$2.05B	(m)	$400.40M	$111.20M	(m)	(m)	3.60×	Reported
2021-12-31	(m)	$2.28B	(m)	$412.60M	$109.50M	(m)	(m)	3.77×	Reported
2021-09-30	(m)	$2.24B	(m)	$450.20M	$106.60M	(m)	(m)	4.22×	Reported
2021-06-30	(m)	(m)	(m)	$423.60M	$103.60M	(m)	(m)	4.09×	Reported
2021-03-31	(m)	(m)	(m)	$283.90M	$103.10M	(m)	(m)	2.75×	Reported
2020-12-31	(m)	(m)	(m)	$237.00M	$104.50M	(m)	(m)	2.27×	Reported
2020-09-30	(m)	(m)	(m)	$206.40M	$105.50M	(m)	(m)	1.96×	Reported
2020-06-30	(m)	(m)	(m)	$180.70M	$105.60M	(m)	(m)	1.71×	Reported
2020-03-31	(m)	(m)	(m)	$300.50M	$104.80M	(m)	(m)	2.87×	Reported
2019-12-31	(m)	(m)	(m)	$299.50M	$105.20M	(m)	(m)	2.85×	Reported
2019-09-30	(m)	(m)	(m)	$302.30M	$104.40M	(m)	(m)	2.90×	Reported
2019-06-30	(m)	(m)	(m)	$294.60M	$103.50M	(m)	(m)	2.85×	Reported
2019-03-31	(m)	(m)	(m)	$340.20M	$102.10M	(m)	(m)	3.33×	Reported
2018-12-31	(m)	(m)	(m)	$280.80M	$99.90M	(m)	(m)	2.81×	Reported
2018-09-30	(m)	(m)	(m)	$279.70M	$98.40M	(m)	(m)	2.84×	Reported
2018-06-30	(m)	(m)	(m)	$301.20M	$96.90M	(m)	(m)	3.11×	Reported
2018-03-31	(m)	(m)	(m)	$299.10M	$94.10M	(m)	(m)	3.18×	Reported
2017-12-31	(m)	(m)	(m)	$337.70M	$91.40M	(m)	(m)	3.69×	Reported
2017-09-30	(m)	(m)	(m)	$321.70M	$89.10M	(m)	(m)	3.61×	Reported
2017-06-30	(m)	(m)	(m)	$312.10M	$85.70M	(m)	(m)	3.64×	Reported
2017-03-31	(m)	(m)	(m)	$297.10M	$83.70M	(m)	(m)	3.55×	Reported
2016-12-31	(m)	(m)	(m)	$284.40M	$80.30M	(m)	(m)	3.54×	Reported
2016-09-30	(m)	(m)	(m)	$282.30M	$77.20M	(m)	(m)	3.66×	Reported
2016-06-30	(m)	$1.46B	(m)	$281.50M	$76.20M	(m)	(m)	3.69×	Reported
2016-03-31	(m)	$1.49B	(m)	$282.20M	$74.60M	(m)	(m)	3.78×	Reported
2015-12-31	(m)	$1.76B	(m)	$272.20M	$74.40M	(m)	(m)	3.66×	Reported
2015-09-30	(m)	$1.98B	(m)	$272.50M	$74.60M	(m)	(m)	3.65×	Reported
2015-06-30	(m)	$1.99B	(m)	$272.60M	$71.10M	(m)	(m)	3.83×	Reported
2015-03-31	(m)	$1.96B	(m)	$261.30M	$64.70M	(m)	(m)	4.04×	Reported
2014-12-31	(m)	$1.78B	(m)	$190.80M	$54.90M	(m)	(m)	3.48×	Reported
2014-09-30	(m)	$1.63B	(m)	$166.40M	$46.20M	(m)	(m)	3.60×	Reported
2014-06-30	(m)	$1.55B	(m)	$165.09M	$40.20M	(m)	(m)	4.11×	Reported
2014-03-31	(m)	$1.48B	(m)	$152.64M	$35.70M	(m)	(m)	4.28×	Reported
2013-12-31	(m)	$1.18B	(m)	$117.31M	$33.04M	(m)	(m)	3.55×	Reported
2013-09-30	(m)	$1.02B	(m)	$96.49M	$28.60M	(m)	(m)	3.37×	Reported
2013-06-30	(m)	(m)	(m)	$108.08M	$25.78M	(m)	(m)	4.19×	Reported
2013-03-31	(m)	(m)	(m)	$110.85M	$25.08M	(m)	(m)	4.42×	Reported
2012-12-31	(m)	(m)	(m)	$109.58M	$24.66M	(m)	(m)	4.44×	Reported
2012-09-30	(m)	(m)	(m)	$110.60M	$24.95M	(m)	(m)	4.43×	Reported
2012-06-30	(m)	(m)	(m)	$110.53M	$25.05M	(m)	(m)	4.41×	Reported
2012-03-31	(m)	(m)	(m)	$121.24M	$25.04M	(m)	(m)	4.84×	Reported
2011-12-31	(m)	(m)	(m)	$120.60M	$25.05M	(m)	(m)	4.82×	Reported
2011-09-30	(m)	(m)	(m)	$118.25M	$25.42M	(m)	(m)	4.65×	Reported
2011-06-30	(m)	(m)	(m)	$117.51M	$25.82M	(m)	(m)	4.55×	Reported
2011-03-31	(m)	(m)	(m)	$104.63M	$26.45M	(m)	(m)	3.96×	Reported
2010-12-31	(m)	(m)	(m)	$104.95M	$26.83M	(m)	(m)	3.91×	Reported
2010-09-30	(m)	(m)	(m)	$104.87M	$26.85M	(m)	(m)	3.91×	Reported
2010-06-30	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
2010-03-31	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
2009-12-31	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
2009-09-30	(m)	(m)	(m)	$125.06M	$29.75M	(m)	(m)	4.20×	Reported
2009-06-30	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
2009-03-31	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)	(m)
2008-09-30	(m)	(m)	(m)	$111.35M	$29.48M	(m)	(m)	3.78×	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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