CoachA stock’s put–call ratio is its put option volume divided by its call option volume over a period, ideally counting only volume that opens new long positions. Its option-to-stock volume ratio is its total option volume (in shares of the underlying) divided by its stock volume.
Quantitative Finance · Glossary
What is Put–call ratio, option-to-stock volume ratio?
Also known as: put--call ratio · option-to-stock volume ratio