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Pay vs Performance Disclosure | 12 Months Ended
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Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($)
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
Fiscal Year | Summary Compensation Table Total for PEO ($)(1) | Compensation Actually Paid to PEO ($)(1)(2) | Average Summary Compensation Table Total or Non-PEO NEOs ($)(1) | Average Compensation Actually Paid to Non-PEO NEOs ($)(1)(2) | Value of Initial Fixed $100 Investment Based on: | Net Income (millions) ($)(5) | Adjusted ROE (%)(6)
Total Stockholder Return ($)(3) | Peer Group Total Stockholder Return ($)(4)
2024 | $ | 18,527,715 |  | 26,535,750 |  | 8,980,302 |  | 12,978,015 |  | 240 |  | 247 |  | 261 |  | 17.1 | %
2023 | $ | 6,518,006 |  | 8,676,423 |  | 4,500,392 |  | 5,468,781 |  | 189 |  | 173 |  | 239 |  | 19.2 | %
2022 | $ | 5,954,623 |  | 8,242,627 |  | 4,288,480 |  | 5,044,391 |  | 162 |  | 147 |  | 207 |  | 21.7 | %
2021 | $ | 4,748,563 |  | 7,466,350 |  | 3,242,632 |  | 3,914,949 |  | 129 |  | 167 |  | 116 |  | 15.2 | %
Company Selected Measure Name | Adjusted ROE |  |  |
Named Executive Officers, Footnote | The following individuals are our PEO and other NEOs for each fiscal year.
Fiscal Year | PEO | Non-PEO NEOs
2024 | Sean O'Connor | William Dunaway, Philip Smith, Charles Lyon, Mark Maurer
2023 | Sean O'Connor | William Dunaway, Glenn Stevens, Philip Smith, Charles Lyon
2022 | Sean O'Connor | William Dunaway, Glenn Stevens, Diego Rotsztain, Charles Lyon
2021 | Sean O'Connor | William Dunaway, Glenn Stevens, Diego Rotsztain, Philip Smith
Peer Group Issuers, Footnote | Our Peer Group TSR is the NYSE/Arca Securities Broker/Dealer Index and is the same group of companies used in our Common Stock Performance Comparison graph as included in our Annual Report. Peer Group TSR value represents the cumulative TSR based on an initial $100 investment on September 30, 2020. |  |  |
PEO Total Compensation Amount | $ 18,527,715 | $ 6,518,006 | $ 5,954,623 | $ 4,748,563
PEO Actually Paid Compensation Amount | $ 26,535,750 | 8,676,423 | 8,242,627 | 7,466,350
Adjustment To PEO Compensation, Footnote |
| Fiscal Year 2021 |  | Fiscal Year 2022 |  | Fiscal Year 2023 |  | Fiscal Year 2024
PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg)
SCT Total Compensation | $ | 4,748,563 |  | $ | 3,242,632 |  |  | $ | 5,954,623 |  | $ | 4,288,480 |  |  | $ | 6,518,006 |  | $ | 4,500,392 |  |  | $ | 18,527,715 |  | $ | 8,980,302 |
Less: Amounts Reported under the “Change in Pension Value” Column in the SCT | — |  | (1,091) |  |  | — |  | — |  |  | — |  | — |  |  | — |  | — |
Less: Amounts Reported under the "Stock Awards" Column in the SCT | (1,274,170) |  | (332,409) |  |  | (753,414) |  | (321,972) |  |  | (1,692,960) |  | (1,260,240) |  |  | (1,414,682) |  | (1,065,178) |
Less: Amounts Reported under the "Option Awards" Column in the SCT | — |  | — |  |  | — |  | (361,900) |  |  | — |  | — |  |  | (12,309,000) |  | (4,995,000) |
Plus: Fair value as of the end of the covered fiscal year of equity compensation granted during the covered fiscal year | 1,548,533 |  | 403,980 |  |  | 1,007,163 |  | 928,616 |  |  | 1,763,659 |  | 1,308,982 |  |  | 19,444,212 |  | 8,848,722 |
Change in fair value from end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of covered fiscal year | 2,373,251 |  | 593,423 |  |  | 2,593,196 |  | 651,270 |  |  | 1,533,083 |  | 682,253 |  |  | 2,303,239 |  | 1,211,477 |
Change in fair value from end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during covered fiscal year | 70,173 |  | 8,414 |  |  | (558,941) |  | (140,103) |  |  | 554,635 |  | 237,394 |  |  | (15,734) |  | (2,308) |
Compensation Actually Paid | $ | 7,466,350 |  | $ | 3,914,949 |  |  | $ | 8,242,627 |  | $ | 5,044,391 |  |  | $ | 8,676,423 |  | $ | 5,468,781 |  |  | $ | 26,535,750 |  | $ | 12,978,015 |
Non-PEO NEO Average Total Compensation Amount | $ 8,980,302 | 4,500,392 | 4,288,480 | 3,242,632
Non-PEO NEO Average Compensation Actually Paid Amount | $ 12,978,015 | 5,468,781 | 5,044,391 | 3,914,949
Adjustment to Non-PEO NEO Compensation Footnote |
| Fiscal Year 2021 |  | Fiscal Year 2022 |  | Fiscal Year 2023 |  | Fiscal Year 2024
PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg) |  | PEO | Non-PEO NEOs (Avg)
SCT Total Compensation | $ | 4,748,563 |  | $ | 3,242,632 |  |  | $ | 5,954,623 |  | $ | 4,288,480 |  |  | $ | 6,518,006 |  | $ | 4,500,392 |  |  | $ | 18,527,715 |  | $ | 8,980,302 |
Less: Amounts Reported under the “Change in Pension Value” Column in the SCT | — |  | (1,091) |  |  | — |  | — |  |  | — |  | — |  |  | — |  | — |
Less: Amounts Reported under the "Stock Awards" Column in the SCT | (1,274,170) |  | (332,409) |  |  | (753,414) |  | (321,972) |  |  | (1,692,960) |  | (1,260,240) |  |  | (1,414,682) |  | (1,065,178) |
Less: Amounts Reported under the "Option Awards" Column in the SCT | — |  | — |  |  | — |  | (361,900) |  |  | — |  | — |  |  | (12,309,000) |  | (4,995,000) |
Plus: Fair value as of the end of the covered fiscal year of equity compensation granted during the covered fiscal year | 1,548,533 |  | 403,980 |  |  | 1,007,163 |  | 928,616 |  |  | 1,763,659 |  | 1,308,982 |  |  | 19,444,212 |  | 8,848,722 |
Change in fair value from end of prior fiscal year to end of current fiscal year for awards made in prior fiscal years that were unvested at end of covered fiscal year | 2,373,251 |  | 593,423 |  |  | 2,593,196 |  | 651,270 |  |  | 1,533,083 |  | 682,253 |  |  | 2,303,239 |  | 1,211,477 |
Change in fair value from end of prior fiscal year to vesting date for awards made in prior fiscal years that vested during covered fiscal year | 70,173 |  | 8,414 |  |  | (558,941) |  | (140,103) |  |  | 554,635 |  | 237,394 |  |  | (15,734) |  | (2,308) |
Compensation Actually Paid | $ | 7,466,350 |  | $ | 3,914,949 |  |  | $ | 8,242,627 |  | $ | 5,044,391 |  |  | $ | 8,676,423 |  | $ | 5,468,781 |  |  | $ | 26,535,750 |  | $ | 12,978,015 |
Compensation Actually Paid vs. Total Shareholder Return | Relationship Between Compensation Actually Paid for PEO and Non-PEO NEOs (Average) versus Cumulative TSR of Company and our Peer Group The graph below illustrates the relationship between “Compensation Actually Paid" to our PEO and on average to our Non-PEO NEOs compared to the cumulative TSR of StoneX and the Peer Group over the four covered fiscal years. |  |  |
Compensation Actually Paid vs. Net Income | Relationship Between Compensation Actually Paid for PEO and Non-PEO NEOs (Average) and Net Income The graph below illustrates the relationship between “Compensation Actually Paid" to our PEO and on average to our Non-PEO NEOs compared to net income over the four covered fiscal years. |  |  |
Compensation Actually Paid vs. Company Selected Measure | Relationship Between Compensation Actually Paid for PEO and Non-PEO NEOs (Average) and Adjusted ROE The graph below illustrates the relationship between “Compensation Actually Paid" to our PEO and on average to our Non-PEO NEOs compared to the Adjusted ROE over the four covered fiscal years. |  |  |
Total Shareholder Return Vs Peer Group | Relationship Between Compensation Actually Paid for PEO and Non-PEO NEOs (Average) versus Cumulative TSR of Company and our Peer Group The graph below illustrates the relationship between “Compensation Actually Paid" to our PEO and on average to our Non-PEO NEOs compared to the cumulative TSR of StoneX and the Peer Group over the four covered fiscal years. |  |  |
Tabular List, Table | •Adjusted ROE •Net Income •Book Value per Share |  |  |
Total Shareholder Return Amount | $ 240 | 189 | 162 | 129
Peer Group Total Shareholder Return Amount | 247 | 173 | 147 | 167
Net Income (Loss) | $ 261,000,000 | $ 239,000,000 | $ 207,000,000 | $ 116,000,000
Company Selected Measure Amount | 0.171 | 0.192 | 0.217 | 0.152
PEO Name | Sean O'Connor | Sean O'Connor | Sean O'Connor | Sean O'Connor
Additional 402(v) Disclosure | Required Tabular Disclosure of Compensation Actually Paid Versus Performance In accordance with rules adopted by the SEC, the following tables and accompanying discussion and charts provide information on the relationship between the “compensation actually paid” (“CAP”) to our NEOs (calculated in accordance with Item 402(v) of Regulation S-K) and certain measures of the Company’s financial performance, including total shareholder return, net income and the Company selected measure of Adjusted ROE. It includes compensation for our Principal Executive Officer (“PEO”), Mr. Sean M O'Connor, and the average compensation for all other NEOs, or the non-PEO NEOs. The amounts reported in this table are not additional amounts received by our chief executive officer and non-PEO NEOs to the amounts reported in the Summary Compensation Table (“SCT”). The CAP set forth in the table below does not reflect amounts actually realized by our NEOs, and the Compensation Committee did not consider the pay versus performance disclosure below when making compensation decisions for any of the years presented. For further information concerning the company’s variable incentive philosophy and how the company aligns executive compensation with the company’s performance, refer to “Executive Compensation – Compensation Discussion and Analysis.” Compensation Actually Paid to our PEO and Non-PEO NEOs represent the "Total" compensation reported in the SCT for the applicable fiscal year, adjusted as shown below. The fair value of equity awards was determined using methodologies and assumptions developed in a manner substantively consistent with those used to determine grant date fair value of such awards. The dollar amounts do not reflect the actual amount of compensation earned by, or paid to, our NEOs during the fiscal years. Total stockholder return (“TSR”) value represents the Company’s cumulative TSR based on an initial $100 investment on September 30, 2020 through the end of each applicable year, assuming reinvestment of dividends.Net income is calculated in accordance with U.S. GAAP and reflects the amounts reported in the Company’s Annual Report on Form 10-K for the applicable year.Adjusted ROE is the company-selected financial performance measure that, in our assessment, represents the most important link to compensation actually paid to our NEOs to company performance. Adjusted ROE is not a measure of financial performance under GAAP. Adjusted ROE is defined as net income subject to certain specific adjustments, divided by the average shareholder equity. See Appendix A for a reconciliation of adjusted net income, used in the calculation of Adjusted ROE, to net income calculated in accordance with U.S. GAAP. The most important financial performance measures used by the Company to link Compensation Actually Paid to Company Performance for the most recently completed fiscal year for PEO and non-PEO NEOs, as described in the CD&A section of this Proxy Statement, are as follows: |  |  |
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Adjusted ROE |  |  |
Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Net Income |  |  |
Measure:: 3 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Book Value per Share |  |  |
PEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 0 | $ 0 | $ 0 | $ 0
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 19,444,212 | 1,763,659 | 1,007,163 | 1,548,533
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 2,303,239 | 1,533,083 | 2,593,196 | 2,373,251
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (15,734) | 554,635 | (558,941) | 70,173
PEO | Stock Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (1,414,682) | (1,692,960) | (753,414) | (1,274,170)
PEO | Options Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (12,309,000) | 0 | 0 | 0
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 0 | (1,091)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 8,848,722 | 1,308,982 | 928,616 | 403,980
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 1,211,477 | 682,253 | 651,270 | 593,423
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (2,308) | 237,394 | (140,103) | 8,414
Non-PEO NEO | Stock Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (1,065,178) | (1,260,240) | (321,972) | (332,409)
Non-PEO NEO | Options Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (4,995,000) | $ 0 | $ (361,900) | $ 0

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