I'm confused. Hopefully the OP can clarify. These two things seem contradictory:
Your deposit stays in your crypto exchange account. You retain complete control over your assets. The Trader will manage your account via API key.
The platform takes profits on the last day of the month at 23:59.
If investors retain control over their funds (on Bitmex) and API keys trigger trades through their accounts, what do you mean by the second statement? Wouldn't all profit be in the investors Bitmex accounts?
Frankly I don't understand how Aivia monetizes this if users keep custody of their own funds.