I know that often Trading 212 execute the orders over OTC Market when you buy a stock.
I also know there are several OTC network and unsponsored/sponsored ADR (American depositary receipt).
my first question is: When you buy a stock on OTC Market are you actually owning the underlying asset or are you buying a contract/certificate made by the broker.
Second question is: Trading 212 use sponsored or unsponsored ADR?
Thank you.