EXHIBIT 99.1 StoneX Group Inc. Reports Fiscal 2024 Second Quarter Financial Results Quarterly Operating Revenues of $818.2 million, up 16% Quarterly Net Income of $53.1 million, ROE of 14.0% Quarterly Diluted EPS of $1.63 per share, up 25% New York, NY – May 8, 2024 – StoneX Group Inc. (the “Company”; NASDAQ: SNEX), a global financial services network that connects companies, organizations, traders and investors to the global market ecosystem through a unique blend of digital platforms, end-to-end clearing ...