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Segment Analysis (Tables)

9 Months Ended

Jun. 30, 2025

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 June 30,												Nine Months Ended June 30,
(in millions)			2025						2024						2025						2024
Total revenues:
Commercial			$	34,028.8					$	26,410.3					$	97,389.8					$	66,867.4
Institutional			626.0						508.9						1,726.8						1,408.0
Self-Directed/Retail			115.7						104.1						378.8						317.1
Payments			53.3						51.1						161.7						161.0
Corporate			15.7						8.3						43.5						31.9
Eliminations			(10.7)						(13.0)						(45.8)						(36.6)
Total			$	34,828.8					$	27,069.7					$	99,654.8					$	68,748.8
Operating revenues:
Commercial			$	225.8					$	262.2					$	706.7					$	661.1
Institutional			626.0						508.9						1,726.8						1,408.0
Self-Directed/Retail			114.2						96.2						331.7						290.7
Payments			53.3						51.1						161.7						161.0
Corporate			15.7						8.3						43.5						31.9
Eliminations			(10.7)						(13.0)						(45.8)						(36.6)
Total			$	1,024.3					$	913.7					$	2,924.6					$	2,516.1
Net operating revenues (loss):
Commercial			$	168.3					$	220.5					$	550.8					$	548.1
Institutional			200.1						157.7						565.1						456.1
Self-Directed/Retail			80.6						68.5						239.2						209.8
Payments			50.2						48.7						153.2						153.7
Corporate			(10.9)						(26.9)						(40.6)						(55.3)
Total			$	488.3					$	468.5					$	1,467.7					$	1,312.4
Net contribution:
(Revenues less cost of sales of physical commodities, transaction-based clearing expenses, variable compensation, introducing broker commissions and interest expense)
Commercial			$	124.3					$	168.7					$	409.9					$	414.4
Institutional			136.4						104.8						382.7						307.5
Self-Directed/Retail			76.4						63.7						227.4						196.2
Payments			41.3						40.1						126.4						125.0
Total			$	378.4					$	377.3					$	1,146.4					$	1,043.1
Segment income:
(Net contribution less non-variable direct segment costs)
Commercial			$	80.2					$	125.7					$	279.1					$	298.5
Institutional			87.4						62.2						252.0						188.7
Self-Directed/Retail			41.2						27.6						120.1						89.5
Payments			28.1						28.2						86.7						87.8
Total			$	236.9					$	243.7					$	737.9					$	664.5
Reconciliation of segment income to income before tax:
Segment income			$	236.9					$	243.7					$	737.9					$	664.5
Net operating loss within Corporate			(10.9)						(26.9)						(40.6)						(55.3)
Overhead costs and expenses			(140.4)						(128.8)						(397.7)						(353.2)
Income before tax			$	85.6					$	88.0					$	299.6					$	256.0
(in millions)			As of June 30, 2025						As of September 30, 2024
Total assets:
Commercial			$	5,403.9					$	5,387.0
Institutional			26,168.2						19,492.9
Self-Directed/Retail			1,141.0						1,024.1
Payments			497.3						438.8
Corporate			1,055.2						1,123.5
Total			$	34,265.6					$	27,466.3

X

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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- References

No definition available.

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