Who we are

Founded in San Francisco in 1989, Group One has grown into one of the largest, privately held options trading firms in the United States employing over 90 people in New York, Chicago, Philadelphia and San Francisco.

Our Business
Our Business

Members and/or Specialists: CBOE, ISE, NYSE ARCA OX, NASDAQ OMX PHLX.

Technology
Technology

Cutting edge technology and performance intensive applications to support our trading.

Careers
Careers

Sophisticated risk management has been the cornerstone to Group One's success.