We don't have synonyms for optionable yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are actionable, optional and optionally.
(adj) :
(finance) Of or pertaining to options on a stock or equity. For some stocks, it is possible to trade options on them, hence they are optionable, for other stocks options aren't traded so they are not optionable.
(adj) :
(finance) Of or pertaining to options on a stock or equity. For some stocks, it is possible to trade options on them, hence they are optionable, for other stocks options aren't traded so they are not optionable.