The Gambling Of Investment Options Forex. For knowledgeable investors, or for the gunslinger-gambler type of investors, this is a familiar word that will probably bring either a smile or a scowl and not much in between the two. For everyone else Forex can sound like anything between a delivery service ripping off a more familiar name to a strange science fiction type of alien monster. Obviously it is neither: forex is referential to currency trading. Basically, when investors talk about forex, they are talking about trading one nation’s currency for another, and then selling down the line in the hope that changes in international markets will cause a profit.