as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what rules govern when a new option series is issued?
user
the cboe rule book, section 5.5 explains exactly what programmes are available, how and when they will start listing and expire. the super-concise summary is: it's a per-underlying decision process, though there's some rules that may provide you with a minimum set of options (e.g. the quarterly programme on highly capitalised stocks trading for more than $75, etc.) for greater detail, for better or worse, you will have to scan the new listings service regularly.
assistant