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Group One Trading Employee Directory

Financial ServicesIllinois, United States51-200 Employees

Group One Trading operates as a proprietary trading firm that concentrates on market-making in US equity options. The company leverages risk management and software development to support its trading activities. It is based in Chicago, Illinois, and describes itself as a midsize firm that prioritizes employee growth and recognizes performance over hours worked.

In providing liquidity in the US equity options market, Group One aims to enable smoother price discovery for market participants. The firm operates within the financial services industry and emphasizes developing its people alongside its trading operations.

Find Group One Trading employees' phone numbers or email addresses

Group One Trading Global Highlights

Location
Employees

North America
231

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  • United States Of America
    228
  • Canada
    3

Europe
7

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  • Poland
    3
  • Azerbaijan
    2
  • Germany
    1
  • United Kingdom Of Great Britain And Northern Ireland
    1

Asia
5

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  • India
    2
  • Philippines
    1
  • Turkey
    1
  • Thailand
    1

Africa
4

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  • Malawi
    1
  • South Africa
    1
  • Botswana
    1
  • Egypt
    1

Group One Trading's Leadership

  • Chief Executive Officer at Group One Trading
    A. S.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    B. S.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    G. S.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    G. W.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    J. H.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    J. B.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at Group One Trading
    S. L.
    Chief Executive Officer
    Mobile Phone
  • Chief Operating Officer at Group One Trading
    A. P.
    Chief Operating Officer
    Mobile Phone

Group One Trading Employee Metrics

100%
50%
0%
2026
2025
  • Banking
  • Finance
  • Entrepreneurship
  • Engineering
  • Human Resources
  • Other

Contact profiles from Group One Trading

Name
Title
Contact
Location
Last Update
  • Principal at Group One Trading
    R. B.
    Principal
    Mobile Phone
    Oct 22, 2024
  • Software Engineer at Group One Trading
    G. B.
    Software Engineer
    Mobile Phone
    Jun 29, 2026
  • Options Trader at Group One Trading
    O. F.
    Options Trader
    Mobile Phone
    Jun 24, 2026
  • Warehouse Worker at Group One Trading
    C. E.
    Warehouse Worker
    Mobile Phone
    Oct 23, 2024
  • Trading Analyst at Group One Trading
    C. G.
    Trading Analyst
    Mobile Phone
    Aug 04, 2025
  • Executive at Group One Trading
    D. T.
    Executive
    Mobile Phone
    Oct 23, 2024
  • Trader Trainee Intern at Group One Trading
    G. P.
    Trader Trainee Intern
    Mobile Phone
    Oct 21, 2024
  • Company Driver at Group One Trading
    G. P.
    Company Driver
    Mobile Phone
    Oct 21, 2024
  • Executive at Group One Trading
    G. H.
    Executive
    Mobile Phone
    Oct 18, 2024
  • Information Technology Influencer at Group One Trading
    H. J.
    Information Technology Influencer
    Mobile Phone
    Oct 21, 2024

Frequently Asked Questions

What is Group One Trading known for?

Minus sign iconPlus sign iconGroup One Trading was founded in 1989 and operates in the Financial Services industry. You can contact Group One Trading's main corporate office by phone at
+1-312-294-****
. Explore Group One Trading's company overview page for more information.

What is Group One Trading's most common email format?

Minus sign iconPlus sign iconGroup One Trading employees' email format typically follows the pattern of First.Last@group1.com. Trying to find reliable and up-to-date employee contact data? Find more Group One Trading email formats with LeadIQ.

How many employees does Group One Trading have currently?

Minus sign iconPlus sign iconGroup One Trading has approximately 140 employees as of August 2026. These team members are located across 4 continents, including North America, Europe and Asia.

Who are Group One Trading's key employees and leadership?

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As of August 2026, Group One Trading's key employees include:

  • Chief Executive Officer: A. S.
  • Chief Executive Officer: B. S.
  • Chief Executive Officer: G. S.
  • Chief Executive Officer: G. W.
  • Chief Executive Officer: J. H.

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