Quote from the1:
You can trade whatever you want. The thing you need to be most concerned about is whether you need to register as an investment advisor. If you exceed $400k or 15 people then yes, you need to register with the NFA. If you manage for anyone in California you have to register in that state, regardless of the number of people you manage for or how much money you manage. There are a lot of little details you have to be aware of.