How should you choose MPF funds? The stock-bond mix shifts with age

This article is a rewrite of a report from August 2012.

MPF is a long-term investment that travels with you through life’s stages: from the young newcomer climbing the career ladder, to planning a comfortable retirement; from single life to raising a family. Risk tolerance differs at each stage, so how you choose MPF funds should change along the way.

Why is age the key to rebalancing?

Because age tells you how many earning years remain. When assessing risk tolerance, age is often the most important factor — it represents the working years left before retirement. With retirement at 65, a 30-year-old has 35 years to build savings through income; a 50-year-old has only 15. The longer the runway, the more market volatility you can ride out; the shorter it gets, the more capital preservation matters.

The basic principle is simple: a higher equity weight when young, a higher bond weight near retirement. A reference allocation:

What else matters besides age?

Don’t apply one rule for life. Lifestyle shapes risk tolerance too: staying single versus raising a family are different propositions; if only one partner works, the retirement plan must cover both. Also note that total living expenses rise after retirement, which affects both risk tolerance and how much monthly contributions matter.

Switching portfolios: all at once or in stages?

Each has trade-offs. Switching all at once is simple, but short-term market swings hit harder and you may mistime the market. Staging the switch harnesses dollar-cost averaging — market moves matter less and cost efficiency is higher — though the paperwork is more tedious.

If the account has already built up substantial assets, rebalance carefully: the returns at stake compound into a meaningful difference over the long run.