There's no reason why you can't have a trading account and a seperate account for investing, for example if I'm a daytrader I will have a trading account where all my buys and sells are on revenue account, this is how I make my living. Does this mean I am not allowed to have a seperate account with ETFs, bluechips etc that I am holding long term/for retirement? Of course not, no different to if I bought a rental property, being a trader in one area doesn't mean I can't be an investor somewhere else.