Operator
Operator
Good morning and welcome to the CBOE Holdings' Fourth Quarter 2015 Financial Results Conference Call. All participants will be in listen-only mode. [Operator Instructions]. After today's presentation, there will be an opportunity to ask questions. [Operator Instructions]. Please also note this event is being recorded. I'd now like to turn the conference over to Debbie Koopman, Vice President of Investor Relations. Please go ahead, ma'am.