Seth Johnson

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Seth Johnson
Occupation CEO
Employer CME Group Cash Markets
Location New York

Seth Johnson is CEO of CME Group Cash Markets - previously EBS BrokerTec Markets, NEX's electronic fixed income trading platform. NEX is the successor to ICAP, which was rebranded after the sale of its brokerage business to Tullett Prebon. NEX in turn was acquired by CME Group.[1] Johnson took over the CEO role in September 2016 from Gil Mandelzis, who left the company in July.


Johnson joined ICAP’s electronic markets division in November 2011 to lead the expansion of its product portfolio. He joined ICAP as a graduate trainee and worked in the company for more than 20 years. For ten years, he was the managing director of the interest rates options and inflation swaps desks. He oversaw the introduction of new trading solutions including the volume match system.[2]

Johnson was chief executive officer of ISDX, but stepped down from the company in 2014 to concentrate on leading BrokerTec.



  1. ICAP Appoints Patrick Birley as CEO of its ISDX exchange. Forex Magnates.
  2. Seth Johnson. ICAP.