The two types of options are similar in that they have the same general terms. However, you cannot sell your ISOs on the CBOE, because they differ in details,

The two types of options are similar in that they have the same general terms. However, you cannot sell your ISOs on the CBOE, because they differ in details, the most important one being that the exchanges only trade in options for publicly traded companies. That doesn't mean you can't sell your ISOs to someone else; there just isn't a marketplace for it.