If investors want to pursue higher returns, then it is best to choose theme funds. Theme funds are generally active funds, and active funds aim at surpassing market returns. If investors pursue market returns, then it is best to choose etf funds. Etf fund is a passive fund, which tracks specific indexes and aims at obtaining market returns.
Relatively speaking, the risk of theme funds is greater than that of etf funds, and the expected return is also higher than that of etf funds.