Rights to acquire or dispose of ownership interests in an enterprise (., options and warrants) where the rights do not have readily determinable fair values will generally meet the definition of a derivative instrument (as will rights to acquire or dispose of ownership interests where the rights do have a readily determinable fair value) and are accounted for under the requirements of ASC 815-10 (assuming that the option meets the definition of a derivative instrument, including the criteria for net settlement in ASC 815-10-15-83(c)). If, however, these rights (., those without readily determinable fair values) fail to meet the definition.