Not really sure what you mean. But as far as trading forex, it's relatively cheap and easy (as these things go as regulation in most jurisdictions is either lax, or non-existent) to set up shop and quite lucrative. The majority don't actually settle trades, they just match their book and trade the rest naked. Because, let's face it, it's pretty much guaranteed that almost all retail trades will blow out their accounts. I wouldn't let my money anywhere near those sleazy bucketshops.