Quote from Aaron:
While it sounds like a simple question, that is a big topic. There are several permutations. You can have trading profits on your own money, trading profits on investor money that go to the investor, trading profits on investor money paid to your management company (performance fees), there are also management fees and some CTA's get commission-based income. Then there are also management, performance fees, and trading profits in commodity pools. And your management company could be a sole proprietorship, LLC, LP, or Subchapter S corp. And the management company could pay you personally a dividend, salary, or you could leave the money in the company, or LLC's and LP's are pass-through entities for tax purposes.
So if you want an accurate answer you have to be careful to specify the question and the business setup. But maybe you were asking about trading profits on your own personal futures trading in your own personal account? That isn't affected by your status as an associated person of a registered CTA. That will still be Section 1256 Contracts and Straddles income and gets the 60/40 tax treatment as Heech said.