Securities are well defined, see https://en.wikipedia.org/wiki/Securities_Exchange_Act_of_193...

Really anything that gains value soley due to being promoted would be considered a security SEC v. WJ Howey Co:

> [a]n investment contract for purposes of the Securities Act means a contract, transaction or scheme whereby a person invests his money in a common enterprise and is led to expect profits solely from the efforts of the promoter or a third party.