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R.J. O'Brien & Associates

ACQUIRED JULY 31, 2025: Oldest independent FCM in U.S. (founded 1914), acquired by StoneX Group for $900M. Now integrated into largest non-bank FCM in U.S.

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Overview

Pricing Model
per-trade
PlatformsFIX APIRJO Futures PRORJO Mobile TraderRJO WebOE
MarketsFuturesOptions On FuturesOTC agriculture

Products & Services

FCM Clearing Services

broker

Full-service futures clearing and execution for institutional, commercial, and individual clients across all major global exchanges

  • 24-hour execution
  • 80,000+ client accounts
  • Full CME/ICE/CBOE clearing
  • Voice and electronic execution
  • OTC agriculture trading
  • Capital and risk management
Learn more

RJO Futures Trading Platforms

platform

Suite of trading platforms including RJO Futures PRO (desktop), WebOE (browser), and Mobile Trader for secure market access

  • RJO Futures PRO desktop
  • RJO WebOE browser-based
  • RJO Mobile Trader
  • FIX connectivity
  • Global exchange access
Learn more

Introducing Broker Services

b2b

White-label FCM solutions for introducing brokers including trading applications, back-office reporting, and full infrastructure support

  • Private-label FCM offering
  • Trading applications
  • Back-office reporting
  • Facilities management
  • Technology infrastructure
Learn more

Company Information

Legal Name
R.J. O'Brien & Associates, LLC
Headquarters
Chicago, IL, USA
Team Size
500+
Primary Timezone
America/Chicago

Founding

Background
Originally founded as John V. McCarthy & Co. by Irish egg-merchant John McCarthy. O'Brien family majority ownership.

Broker Details

Regulation
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Av Ricardo J. Alfaro, Century Tower, Panama City, Panama, Ph: +507 833-9432 (Panama and Intl), +1 888-312-3001 (USA and Canada)
All information is for educational use only and is not investment advice. There is a substantial risk of loss in trading commodity futures, stocks, options and foreign exchange products. Past performance is not indicative of future results.
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