Segment Analysis (Tables)

6 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Information for the reportable segments is shown in accordance with the Segment Reporting Topic of the ASC as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
(in millions)	2021		2020		2021		2020
Total revenues:
Commercial	$	10,516.4	$	20,037.4	$	19,381.9	$	31,043.7
Institutional	191.6		185.7		357.1		318.1
Retail	503.5		116.5		695.7		192.8
Global Payments	33.5		29.4		67.9		60.8
Corporate Unallocated	4.2		4.0		0.7		9.2
Eliminations	(4.4)		(6.7)		(8.0)		(13.3)
Total	$	11,244.8	$	20,366.3	$	20,495.3	$	31,611.3
Operating revenues:
Commercial	$	144.3	$	126.2	$	249.9	$	219.4
Institutional	191.6		185.7		357.1		318.1
Retail	102.2		28.2		183.9		49.4
Global Payments	33.5		29.4		67.9		60.8
Corporate Unallocated	4.2		4.0		0.7		9.2
Eliminations	(4.4)		(6.7)		(8.0)		(13.3)
Total	$	471.4	$	366.8	$	851.5	$	643.6
Net operating revenues (loss):
Commercial	$	118.2	$	104.3	$	200.8	$	178.0
Institutional	123.8		104.9		229.1		169.7
Retail	70.7		9.7		122.8		14.6
Global Payments	31.7		28.0		64.4		57.8
Corporate Unallocated	(10.2)		(3.5)		(26.8)		(6.2)
Total	$	334.2	$	243.4	$	590.3	$	413.9
Net contribution:
(Revenues less cost of sales of physical commodities, transaction-based clearing expenses, variable compensation, introducing broker commissions and interest expense)
Commercial	$	81.8	$	70.4	$	138.6	$	121.9
Institutional	75.3		72.5		142.4		118.5
Retail	65.5		9.4		114.1		13.9
Global Payments	25.7		22.6		51.8		46.4
Total	$	248.3	$	174.9	$	446.9	$	300.7
Segment income:
(Net contribution less non-variable direct segment costs)
Commercial	$	55.6	$	41.7	$	87.7	$	70.4
Institutional	52.0		51.4		96.8		76.7
Retail	32.0		7.0		49.9		9.9
Global Payments	19.4		17.2		39.8		36.1
Total	$	159.0	$	117.3	$	274.2	$	193.1
Reconciliation of segment income to income before tax:
Segment income	$	159.0	$	117.3	$	274.2	$	193.1
Net costs not allocated to operating segments	(82.7)		(61.2)		(171.0)		(115.4)
Other gain	—		—		—		0.1
Income before tax	$	76.3	$	56.1	$	103.2	$	77.8
(in millions)	As of March 31, 2021		As of September 30, 2020
Total assets:
Commercial	$	3,438.7	$	2,753.6
Institutional	9,912.8		8,740.8
Retail	1,382.3		1,245.9
Global Payments	366.2		315.9
Corporate Unallocated	699.7		418.7
Total	$	15,799.7	$	13,474.9