Acquisitions	6 Months Ended
Mar. 31, 2025
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Acquisitions	Acquisitions The Company’s consolidated financial statements include the operating results and cash flows of the acquired businesses from the dates of acquisition. Assets of JBR Recovery Limited On October 1, 2024, the Company’s subsidiary, StoneX Metals Limited, executed a sale and purchase agreement to acquire the recycling and refining business, along with certain assets, including licenses, silver inventory and refining/recycling equipment, from JBR Recovery Limited (“JBR”) a company incorporated in England and Wales. This transaction was effective on the closing date of October 1, 2024. The asset purchase was accounted for as a business acquisition in accordance with ASC 805. JBR is one of only two UK companies accredited for the supply of “Good Delivery” silver to the London Bullion Market and is expected to enhance the Company’s supply chain integration. The purchase price consists of $8.0 million of cash consideration paid at closing, approximately $12.6 million in silver bullion paid at closing, approximately $0.7 million of silver bullion payable upon determination of final silver inventory valuation, and deferred consideration totaling $2.4 million due in two equal annual payments beginning on October 1, 2025. The business activities of JBR have been assigned to the Company’s Commercial reportable segment. The acquisition generated $4.8 million of Goodwill and $2.5 million of intangible assets. Octo Finances SA On January 31, 2025, the Company executed a share purchase agreement to acquire all of the outstanding shares of Octo Finances SA (“Octo”), a fixed income broker based in Paris, France. Octo, which specializes in bond and convertible sales, debt capital markets, and credit research, expands the Company’s offering in fixed income and strengthen its capabilities in Europe. This transaction was effective on the closing date of January 31, 2025. The purchase price consists of $7.5 million of cash consideration paid at closing, an additional $0.9 million paid within 45 days post closing, and a non-contingent earn-out valued at approximately $0.1 million split between the first two anniversaries of the closing date. The business activities of Octo have been assigned to the Company’s Institutional reportable segment. The acquisition generated $2.1 million of Goodwill and $1.9 million of intangible assets. R.J. O’Brien On April 14, 2025, the Company announced that it had entered into a definitive agreement with RTS Merger Sub Inc., RTS Investor Corp., and Westmoor Trail Partners LLC to acquire R.J. O’Brien (“RJO”), the oldest futures brokerage in the U.S., for an equity value of approximately $900 million. The purchase price will be paid in a combination of cash in the amount of $625 million and shares of the Company’s common stock valuing $275 million. The number of shares will be based on the numerical average of the volume-weighted average trading price for one share for the ten trading days ending on, and including, the last trading day prior to the closing date, subject to a minimum and maximum per share price, as disclosed in the purchase agreement. The Company will also assume up to $143 million of RJO debt. The acquisition is expected to significantly strengthen the Company’s position as a leading FCM and enhance its role as an essential part of the global financial market structure, offering institutional grade execution, clearing, custody, and prime brokerage across all asset classes. The acquisition is expected to expand the Company’s client float and add many introducing brokers to its network, while RJO’s clients benefit from the Company’s extensive range of markets, products, and services. This transaction is expected to close in the third calendar quarter of 2025, subject to various approvals and customary closing conditions. In connection with the agreement, the Company has obtained commitments for up to $625 million in debt financing for the acquisition. Benchmark On March 11, 2025, the Company announced that it had signed an agreement to acquire The Benchmark Company, LLC (“Benchmark”). Benchmark is a full-service investment banking firm offering a robust sales and trading platform, award-winning equity research, and a highly experienced investment banking team. Headquartered in New York City and operating nationwide, Benchmark has been delivering exceptional client service, market access, and deep market and industry expertise for over 35 years. This acquisition will strengthen the Company’s offerings in equity and debt capital markets, with significant enhancements in equity research and investment banking. The Benchmark acquisition is expected to close in the third calendar quarter of 2025 for an expected purchase price of approximately $75 million.

On October 1, 2024, the Company’s subsidiary, StoneX Metals Limited, executed a sale and purchase agreement to acquire the recycling and refining business, along with certain assets, including licenses, silver inventory and refining/recycling equipment, from JBR Recovery Limited (“JBR”) a company incorporated in England and Wales. This transaction was effective on the closing date of October 1, 2024. The asset purchase was accounted for as a business acquisition in accordance with ASC 805. JBR is one of only two UK companies accredited for the supply of “Good Delivery” silver to the London Bullion Market and is expected to enhance the Company’s supply chain integration.

The purchase price consists of $8.0 million of cash consideration paid at closing, approximately $12.6 million in silver bullion paid at closing, approximately $0.7 million of silver bullion payable upon determination of final silver inventory valuation, and deferred consideration totaling $2.4 million due in two equal annual payments beginning on October 1, 2025. The business activities of JBR have been assigned to the Company’s Commercial reportable segment. The acquisition generated $4.8 million of Goodwill and $2.5 million of intangible assets.

On January 31, 2025, the Company executed a share purchase agreement to acquire all of the outstanding shares of Octo Finances SA (“Octo”), a fixed income broker based in Paris, France. Octo, which specializes in bond and convertible sales, debt capital markets, and credit research, expands the Company’s offering in fixed income and strengthen its capabilities in Europe. This transaction was effective on the closing date of January 31, 2025.

The purchase price consists of $7.5 million of cash consideration paid at closing, an additional $0.9 million paid within 45 days post closing, and a non-contingent earn-out valued at approximately $0.1 million split between the first two anniversaries of the closing date. The business activities of Octo have been assigned to the Company’s Institutional reportable segment. The acquisition generated $2.1 million of Goodwill and $1.9 million of intangible assets.

On April 14, 2025, the Company announced that it had entered into a definitive agreement with RTS Merger Sub Inc., RTS Investor Corp., and Westmoor Trail Partners LLC to acquire R.J. O’Brien (“RJO”), the oldest futures brokerage in the U.S., for an equity value of approximately $900 million. The purchase price will be paid in a combination of cash in the amount of $625 million and shares of the Company’s common stock valuing $275 million. The number of shares will be based on the numerical average of the volume-weighted average trading price for one share for the ten trading days ending on, and including, the last trading day prior to the closing date, subject to a minimum and maximum per share price, as disclosed in the purchase agreement. The Company will also assume up to $143 million of RJO debt. The acquisition is expected to significantly strengthen the Company’s position as a leading FCM and enhance its role as an essential part of the global financial market structure, offering institutional grade execution, clearing, custody, and prime brokerage across all asset classes. The acquisition is expected to expand the Company’s client float and add many introducing brokers to its network, while RJO’s clients benefit from the Company’s extensive range of markets, products, and services.

This transaction is expected to close in the third calendar quarter of 2025, subject to various approvals and customary closing conditions. In connection with the agreement, the Company has obtained commitments for up to $625 million in debt financing for the acquisition.

On March 11, 2025, the Company announced that it had signed an agreement to acquire The Benchmark Company, LLC (“Benchmark”). Benchmark is a full-service investment banking firm offering a robust sales and trading platform, award-winning equity research, and a highly experienced investment banking team. Headquartered in New York City and operating nationwide, Benchmark has been delivering exceptional client service, market access, and deep market and industry expertise for over 35 years. This acquisition will strengthen the Company’s offerings in equity and debt capital markets, with significant enhancements in equity research and investment banking.