v3.26.1
Regulatory Capital Requirements (Tables)
 9 Months Ended
Jun. 30, 2026
Capital and Other Regulatory Requirements [Abstract]  
Schedule of Subsidiaries with Minimum Regulatory Requirements The following table details those subsidiaries with minimum regulatory requirements in excess of $10.0 million along with the actual balance maintained as of that date.
(in millions)As of June 30, 2026
SubsidiaryRegulatory AuthorityActualMinimum
Requirement
StoneX Financial Inc.SEC and CFTC$981.8 $602.5 
StoneX Financial Ltd.FCA$600.3 $490.8 
Gain Capital Group, LLCCFTC and NFA$89.3 $29.4 
StoneX Financial Pte. Ltd.MAS$148.0 $36.7 
StoneX Markets LLCCFTC and NFA$261.4 $167.9