StoneX Group to Acquire R.J. O'Brien & Associates
April 16, 2025
StoneX Group has reached a definitive agreement to merge all of R.J. O'Brien & Associates’ global businesses into StoneX, subject to regulatory approvals and customary closing conditions. The combined firm is expected to become a leading U.S. futures commission merchant (FCM), combining RJO’s client network and clearing capabilities with StoneX’s liquidity and risk management infrastructure.
- Buyers
- StoneX Group Inc.
- Targets
- R.J. O'Brien & Associates (RJO)
- Sellers
- O'Brien family (majority shareholders)
- Industry
- Financial Services
- Location
- Illinois, United States
- Transaction Type
- Buyout
Explore More
Related Acquisitions
-
StoneX Group Acquires GAIN Capital/GAA; Daniels Trading Rebranded under StoneX
March 17, 2021
Financial Services
StoneX Group Inc. completed the acquisition of GAIN Capital Holdings, Inc. and its subsidiary Global Asset Advisors, LLC, bringing brands including Daniels Trading, Top Third Ag Marketing and FuturesOnline into the StoneX network. Daniels Trading (an introducing futures broker based in Chicago) has unveiled a StoneX-branded offering and expanded services leveraging StoneX's global execution, clearing and retail trading platforms.
-
Converge Technology Solutions Acquires Stone Technologies Group (Stone Group)
September 22, 2022
IT Services
Converge Technology Solutions Corp. agreed to acquire UK-based Stone Technologies Group Limited (Stone Group), a provider of circular IT and managed IT services to education, public and private sector clients. The deal (subject to regulatory approvals) expands Converge’s European footprint and adds Stone’s sustainability-focused IT recycling and managed services capabilities to Converge’s global platform; sellers included Souter Investments and RJD Partners.
-
StoneRidge Insurance Brokers (CIVC Portfolio Company) Acquires John Stark & Company
December 13, 2021
Insurance
SIB Corp., operating as StoneRidge Insurance Brokers and backed by private equity firm CIVC Partners, has acquired John Stark & Company, a family-owned full-service insurance brokerage with offices in Barrie and Coldwater, Ontario. The acquisition expands StoneRidge’s personal, commercial and life insurance offerings and continues SIB’s roll-up strategy in Canada; Stark is the eighth transaction since SIB partnered with CIVC in 2019.
-
The Bluebird Group Acquires OneStone Solutions Group
December 19, 2023
Marketing & Advertising
The Bluebird Group, a Minneapolis-based omni-channel commerce agency, has acquired OneStone Solutions Group, a retail media and Amazon/Walmart services provider with offices in Bentonville, Arkansas and Denver, Colorado. The acquisition adds OneStone's Amazon account management, retail media advertising and creative capabilities to Bluebird's omni-channel offering to accelerate eCommerce and retail .com services for brand clients.
-
Stellex Capital Management Acquires Fox Brothers Holdings Group
September 20, 2024
Industrial Services
An affiliate of Stellex Capital Management has acquired a majority stake in UK-based Fox Brothers Holdings Group, a family-run integrated services and construction materials provider. The deal will merge Fox Brothers with J A Jackson, retain Paul Fox as CEO, bring industry veterans Mark Joel and Andy Swinnerton into senior roles, and aims to expand and vertically integrate the business into a circular-economy construction materials platform.
-
Fibronostics Acquires Stone Clinical Laboratories
October 27, 2025
Healthcare Services
Fibronostics has completed the acquisition of Stone Clinical Laboratories, LLC, expanding its U.S. laboratory infrastructure to accelerate innovation in non-invasive diagnostics for metabolic and liver diseases (MASH/MASLD). The deal strengthens Fibronostics' R&D and testing capabilities, combining Stone Clinical's laboratory expertise with Fibronostics' proprietary LIVERFASt platform to support biomarker development, clinical validation, and collaborations with biopharma and healthcare partners.
Track M&A activity that matters to you
Get real-time deal alerts, build buyer lists with AI, and access our full acquisition database. Start your free trial today.