When you are reviewing contracts with your new trading firm, be sure that you are NOT joining an LLC "affiliate" or another franchise or some other type of entity. This has been a problem in the industry, wherein the "sub class" LLC (under the Main firm), has signed contracts with traders, gone "belly up" and the traders (who thought they were members of the "bigger" entity) found that their money was gone. Just because it says ABC trading, be sure that you have a contract signed by the parent firm.
This has been a good way for firms to "appear" bigger than they really are (using many LLC's - kind of like Enron).