v3.25.1
Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Tables)
6 Months Ended
Mar. 31, 2025
Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk [Abstract]  
Schedule of Derivative Instruments
Listed below are the fair values of the Company’s derivative assets and liabilities as of March 31, 2025 and September 30, 2024. Assets represent net unrealized gains and liabilities represent net unrealized losses.
 March 31, 2025September 30, 2024
(in millions)
Assets (1)
Liabilities (1)
Assets (1)
Liabilities (1)
Derivative contracts not accounted for as hedges:
Exchange-traded commodity derivatives$1,588.4 $1,612.9 $1,383.1 $1,415.7 
OTC commodity derivatives2,651.9 2,467.9 1,967.9 1,924.3 
Exchange-traded foreign exchange derivatives4.2 4.2 2.0 2.0 
OTC foreign exchange derivatives453.7 437.2 975.2 938.2 
Exchange-traded interest rate derivatives656.6 658.7 720.1 728.1 
OTC interest rate derivatives180.1 180.1 207.1 207.1 
Exchange-traded equity index derivatives381.6 381.6 1,817.4 1,817.4 
OTC equity and indices derivatives201.4 171.2 127.4 86.7 
TBA and forward settling securities22.0 21.7 26.1 24.4 
Subtotal6,139.9 5,935.5 7,226.3 7,143.9 
Derivative contracts designated as hedging instruments:
Interest rate contracts— — — 0.2 
Foreign currency forward contracts9.1 0.2 9.6 — 
Subtotal9.1 0.2 9.6 0.2 
Gross fair value of derivative contracts$6,149.0 $5,935.7 $7,235.9 $7,144.1 
Impact of netting and collateral (6,006.0)(5,956.8)(6,670.6)(6,614.6)
Total fair value included in Deposits with and receivables from broker-dealers, clearing organizations, and counterparties, net
$(72.4)$336.0 
Total fair value included in Receivable from clients, net
$0.5 $(8.4)
Total fair value included in Financial instruments owned, at fair value
$214.9 $237.7 
Total fair value included in Payables to clients
$(215.4)$265.9 
Total fair value included in Payables to broker-dealers, clearing organizations and counterparties
$(11.2)$(1.4)
Total fair value included in Financial instruments sold, not yet purchased, at fair value
$205.5 $265.0 
(1)As of March 31, 2025 and September 30, 2024, the Company’s derivative contract volume for open positions was approximately 12.8 million and 12.2 million contracts, respectively.
Schedule of Fair Value of Derivative Instruments Designated for Hedging
The fair values of derivative instruments designated for hedging held as of March 31, 2025 and September 30, 2024 are as follow:

 March 31, 2025September 30, 2024
(in millions)Balance Sheet LocationFair ValueFair Value
Asset Derivatives
Derivatives designated as hedging instruments:
Foreign currency forward contractsFinancial instruments owned, net$9.1 $9.6 
Total derivatives designated as hedging instruments$9.1 $9.6 
Derivative assets expected to be released from Other comprehensive income into current earnings:
Foreign currency forward contracts$8.4 $9.2 
Total expected to be released from Other comprehensive income into earnings
$8.4 $9.2 
Liability Derivatives
Derivatives designated as hedging instruments:
Interest rate contractsFinancial instruments sold, not yet purchased$— $0.2 
Foreign currency forward contractsFinancial instruments sold, not yet purchased0.2 — 
Total derivatives designated as hedging instruments$0.2 $0.2 
Derivative liabilities expected to be released from Other comprehensive income into current earnings:
Interest rate contracts$— $0.2 
Foreign currency forward contracts— — 
Total expected to be released from Other comprehensive income into earnings
$— $0.2 
Schedule of Notional Amounts of Outstanding Derivative Positions
The notional values of derivative instruments designated for hedging held as of March 31, 2025 and September 30, 2024 are as follows:
 March 31, 2025September 30, 2024
(in millions)Notional ValueNotional Value
Derivatives designated as hedging instruments:
Interest rate contracts$— $500.0 
Foreign currency forward contracts:
Foreign currency forward contracts to purchase Polish Zloty:
Local currency210.0 156.1 
USD$51.1 $37.5 
Foreign currency forward contracts to purchase British Pound Sterling:
Local currency£124.0 £72.0 
USD$153.3 $88.8 
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance
The Condensed Consolidated Income Statement effects of derivative instruments designated for hedging held for the three and six months ended March 31, 2025 and 2024 are as follows:
(in millions)Income Statement LocationThree Months Ended March 31, 2025Six Months Ended March 31, 2025
Total amounts of gain reclassified from Accumulated Other Comprehensive Income into Income:
Foreign currency forward contractsCompensation and benefits2.2 3.0 
Total derivatives designated as hedging instruments$2.2 $3.0 
Amount of gain reclassified from accumulated other comprehensive income into income as a result of a forecasted transaction that is no longer probable of occurring$— $— 

(in millions)Income Statement LocationThree Months Ended March 31, 2024Six Months Ended March 31, 2024
Total amounts reclassified from Accumulated Other Comprehensive Income into Income:
Interest rate contractsInterest Income$(4.6)$(20.5)
Foreign currency forward contractsCompensation and benefits1.8 3.7 
Total derivatives designated as hedging instruments$(2.8)$(16.8)
Amount of gain reclassified from accumulated other comprehensive income into income as a result of a forecasted transaction that is no longer probable of occurring$— $— 
The following table sets forth the Company’s net gains/(losses) related to derivative financial instruments for the three and six months ended March 31, 2025 and 2024 in accordance with the Derivatives and Hedging Topic of the ASC. The net gains/(losses) set forth below are included in Principal gains, net and Cost of sales of physical commodities in the Condensed Consolidated Income Statements.
Three Months Ended March 31,Six Months Ended March 31,
(in millions)2025202420252024
Commodities$131.2 $30.4 $186.0 $117.5 
Foreign exchange 21.7 32.6 67.1 57.8 
Interest rate, equities, and indices 7.6 15.5 49.9 42.9 
To be announced and forward settling securities(73.2)25.5 18.8 (67.7)
Net gains from derivative contracts$87.3 $104.0 $321.8 $150.5 
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income
The accumulated other comprehensive income effects of derivative instruments designated for hedging held for the three and six months ended March 31, 2025 and 2024 are as follows:

Amount of Gain/(Loss) Recognized in Other Comprehensive Income on Derivatives, net of tax
(in millions)Three Months Ended March 31, 2025Three Months Ended March 31, 2024
Derivatives in Cash Flow Hedging Relationships:
Interest rate contracts$— $1.7 
Foreign currency forward contracts6.6 (2.5)
Total$6.6 $(0.8)

Amount of Gain/(Loss) Recognized in Other Comprehensive Income on Derivatives, net of tax
(in millions)Six Months Ended March 31, 2025Six Months Ended March 31, 2024
Derivatives in Cash Flow Hedging Relationships:
Interest rate contracts$0.1 $14.3 
Foreign currency forward contracts(0.4)5.6 
Total$(0.3)$19.9