For example, U.S. exchanges require us to collect and maintain personal and employment information for all users of our Options API data who are considered professional. A professional status is determined when you sign up on our website and complete a small list of questions. The data is the same for both professional and non-professional users, however, professional users are subject to higher exchange fees regulated by OPRA. To learn more about professional and non-professional subscriber status on Polygon.io, visit our blog post “Understanding Professional Status”. Professional users can find pricing information on our business products page.