Founded in 1919, the North American Securities Administrators Association (NASAA) is the oldest international regulatory organization dedicated to protecting investors.
The Options Clearing Corporation (OCC) serves as the central clearing house and regulator of listed options traded in the US under the auspices of the SEC and the CFTC.
The order protection rule aims to ensure that investors get the best price when their order is filled by eliminating the possibility of orders being sold (executed at the worst price).
A price cap is a type of price control, usually sanctioned by the government, that sets the maximum amount a seller can charge for a product or service.