Industry marks passing of former RJO head John O'Brien Sr

12th July, 2022

Radi Khasawneh
RJO Chicago gig

R.J. O’Brien & Associates (RJO), the oldest and largest independent futures commissions merchant, has confirmed the passing of its former chief executive and chairman

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ABN AMRO
Bank of America
CBOE
Citi
Goldman Sachs
DRW Holdings
HSBC
J.P Morgan
Marex
Morgan Stanley
SGX
SocGen
Susquehanna
MUFG Investor Services
TP ICAP

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