After receiving MPF contributions, banks or insurers buy corresponding fund units at market prices according to the fund ratios the employee chose; members can in fact switch funds online anytime — it’s not entirely out of their hands. The balance on the annual benefit statement reflects market value at the time.
It depends whether you’re an aggressive or conservative investor — there is no one-size answer; choose by personal risk tolerance and years to retirement.
If you hold several preserved accounts, consider consolidating into one for easier management and lower admin fees. Compare schemes at MPF fund comparison.

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