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v3.23.1

Revenue from Contracts with Clients - Revenue from Contracts with Clients (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | $ 917.8 | $ 970.8 | $ 1,864.2 | $ 1,891.5
Principal gains, net | 256.6 | 323.5 | 510.8 | 574.6
Interest income | 226.8 | 31.2 | 423.0 | 62.2
Revenues | 16,161.0 | 16,382.7 | 29,172.6 | 30,724.1
Total operating revenues | 704.4 | 544.7 | 1,359.2 | 995.2
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1,471.1 | 1,204.6 | 3,034.7 | 2,329.3
Total operating revenues | 538.5 | 364.5 | 1,028.4 | 668.6
Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 912.0 | 933.6 | 1,827.0 | 1,818.2
Total operating revenues | 105.5 | 131.3 | 207.0 | 239.0
South America |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 56.5 | 23.6 | 118.7 | 41.3
Total operating revenues | 32.0 | 23.6 | 63.5 | 41.3
Middle East and Asia |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 13,720.0 | 14,218.5 | 24,186.3 | 26,530.7
Total operating revenues | 27.1 | 23.0 | 54.5 | 41.8
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1.4 | 2.4 | 5.9 | 4.6
Total operating revenues | 1.3 | 2.3 | 5.8 | 4.5
Point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 878.2 | 943.6 | 1,787.3 | 1,837.4
Time elapsed |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 39.6 | 27.2 | 76.9 | 54.1
Exchange-traded futures and options |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 55.3 | 57.7 | 104.0 | 102.3
OTC derivative brokerage |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 4.5 | 4.9 | 8.1 | 9.3
Equities and fixed income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 15.6 | 17.1 | 31.0 | 31.7
Mutual funds |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 0.9 | 1.2 | 1.5 | 2.4
Insurance and annuity products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 2.7 | 2.4 | 4.5 | 5.2
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 1.1 | 0.9 | 2.2 | 1.7
Total sales-based commission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 80.1 | 84.2 | 151.3 | 152.6
Mutual funds |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 3.1 | 3.6 | 6.1 | 7.5
Insurance and annuity products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 3.5 | 4.2 | 7.0 | 8.6
Total trailing commission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 6.6 | 7.8 | 13.1 | 16.1
Clearing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 40.0 | 40.6 | 76.0 | 77.0
Trade conversion fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 2.0 | 4.0 | 4.4 | 6.0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 2.0 | 1.8 | 3.9 | 3.0
Total commission and clearing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 130.7 | 138.4 | 248.7 | 254.7
Revenues | 130.7 | 138.4 | 248.7 | 254.7
Underwriting fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 0.1 | 0.1 | 0.3 | 0.3
Asset management fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 11.1 | 11.4 | 21.8 | 22.0
Advisory and consulting fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 9.0 | 7.5 | 17.7 | 15.0
Sweep program fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 12.9 | 0.5 | 24.3 | 1.0
Client account fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 3.7 | 4.3 | 7.5 | 8.0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 3.9 | 1.6 | 8.9 | 3.2
Total consulting, management, and account fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 40.7 | 25.4 | 80.5 | 49.5
Revenues | 40.7 | 25.4 | 80.5 | 49.5
Precious metals sales |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer | 746.4 | 807.0 | 1,535.0 | 1,587.3
Physical precious metals trading |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Sales of physical commodities | 13,703.1 | 14,211.3 | 24,182.1 | 26,526.6
Physical agricultural and energy product trading |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Sales of physical commodities | $ 1,056.7 | $ 845.9 | $ 2,192.5 | $ 1,669.2
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Clients |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues from contracts with clients as a percentage of total revenues | 5.70% | 5.90% | 6.40% | 6.20%

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