Please complete the complaint form with as much information as possible. This will
help lessen the need to contact you further and will allow for the most prompt and
thorough investigation of your complaint. All information will be treated in confidence
to the fullest extent possible and Cboe Rules enable Cboe to protect the identity
of a complainant. However, Cboe cannot guarantee that during the course of completing
its investigation or possible prosecution of the matter that the source of the complaint
will not become known. Please do not send duplicate copies of your complaint by
mail if you are submitting your complaint online.