- Cboe CEO Edward Tilly Resigns Over Personal Relationships With Colleagues The Wall Street Journal
- Cboe CEO Edward Tilly Resigns Over Undisclosed Personal Relationships Bloomberg
- Cboe chief resigns over undisclosed relationships with colleagues Financial Times
- Cboe’s CEO Resigns Over Undisclosed Personal Relationships Yahoo Finance
- Cboe CEO’s exit fuels CME merger speculation Crain’s Chicago Business
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