Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2024
Complaint involving a former director and Belvedere Trading allegations
William Carlson filed a complaint with the Illinois Attorney Registration and Disciplinary Commission concerning Mark Francis Duffy, a former Cboe director and former legal counsel to Belvedere Trading. The complaint alleged that Duffy failed to act on evidence of financial misconduct and raised questions about conflicts and oversight. The allegations were disputed and remained allegations rather than established findings in the supplied material.
2023
Chief executive resignation over undisclosed relationships
Edward Tilly resigned as chief executive after failing to disclose personal relationships with colleagues, resulting in a senior leadership transition.
2013
Settlement over abusive short-selling controls
Cboe paid a six-million-dollar penalty and agreed to remedial measures to resolve allegations that it had not adequately enforced rules intended to prevent abusive short selling.