DCA in a bear market works only if you keep going. When prices fall, a fixed monthly sum buys more units, which is the part of dollar-cost averaging (DCA) that lowers your average cost. Before deciding to continue, check two things: that your emergency fund and income are secure, and that the money you are investing will not be needed for years. If both hold, the plan you set in calmer times is usually the one to follow.
Nobody can say how far a fall will go or when it will end, and investments can lose money for long periods. This article is about behaviour and planning. It does not predict markets or recommend any investment.
Check Your Footing Before Your Portfolio
A downturn hits income and investments at the same time. Get the order right:
- Emergency fund. The MAS and MoneySense Basic Financial Planning Guide suggests at least three to six months of expenses in savings, or 12 months if your income is irregular. Our emergency fund calculator turns that into a dollar target.
- Job and income. If your job is at risk, cutting or pausing the monthly amount to build cash is sensible. That is different from selling.
- Time horizon. Money you need within a few years leaves little time to recover from a fall if it sits in shares. MoneySense notes that the longer your horizon, the more time you have to ride out market fluctuations.
- Debt. High-interest debt costs a known, high rate. Clearing it comes before investing more.
Our guide to investing during a recession covers the wider household picture.
Why Stopping DCA in a Bear Market Hurts
Illustration only, not a guarantee. Our standard made-up path: a fund falls from $1.00 to $0.75 by month 6, then recovers to $1.05 by month 12. Three people invest S$500 a month.
| What they did | Money put in | Value at month 12 |
|---|---|---|
| Kept going all 12 months | $6,000 | About $7,070 |
| Paused months 5 to 9, then invested the saved $2,500 in month 10 | $6,000 | About $6,620 |
| Sold everything at month 6, restarted in month 10, kept the skipped $1,500 as cash | $6,000 | About $5,950 including cash |
The second person missed the cheapest months and bought back in higher, costing about $450. The third turned a paper loss of about $400 at month 6 into a real one, then missed the recovery.
On a different path, with prices still falling in month 12, the person who kept going would show a bigger paper loss. That is the honest trade: continuing buys more at lower prices, which helps if prices later recover, and hurts more if they do not.
The short version: in a fall, a fixed monthly amount buys more units, which is the point of DCA. Secure your cash and income first; if you need to, reduce or pause contributions rather than sell. Decisions made in the middle of a crash are the ones most likely to lock in a loss.
What Goes On in Your Head
MoneySense’s page on behavioural science and investing explains the traps:
- Loss aversion. Losing $1,000 is likely to feel roughly twice as powerful as gaining $1,000. A falling balance feels urgent even when nothing in your plan has changed.
- Acting while emotionally charged. It warns against investment decisions made just after a market crash.
- Locking in losses. A temporary drop can provoke a sell decision that makes the loss permanent.
- Herd behaviour. The “kiasu” pull to do what everyone else is doing, including selling when others sell.
The same page offers the remedy: a standing instruction to invest a fixed amount each month lets you invest consistently through good and bad times, and helps remove emotion from the decision.
Rules That Help You Stay the Course
Write these down before the next fall, not during it:
- Your monthly amount, and the conditions for changing it. For example: “I reduce contributions only if my emergency fund drops below four months of expenses.”
- What would make you sell. A change in your goals or time horizon is a reason. A falling price on its own is not a plan.
- How often you check. Monthly statements are enough for a long-term plan. Daily checking magnifies every swing.
- Rebalancing. MoneySense suggests reviewing your portfolio regularly and rebalancing. After a fall in shares, that can mean topping up shares from safer holdings to get back to your target mix.
- Optional extra purchases. If you want to add more after falls, set the trigger and the amount in advance, and use only money you will not need for years. Our article on value averaging and other variations describes rule-based ways to do this.
What a Downturn Does Not Change
- Diversification still matters. DCA into a single company’s shares in a downturn can mean buying more of something that never recovers. MoneySense notes a single company can go bankrupt. Broad funds spread that risk; the ETF investing guide explains how.
- Fees still apply on every purchase. Check them in our regular savings plans comparison.
- Cash still has a place. Singapore-dollar deposits are insured up to $100,000 per depositor per bank. Money for the next few years belongs there or in similar low-risk products, not in a falling share market.
What To Do Next
- Confirm your emergency fund before the next statement arrives.
- Write a one-paragraph plan: amount, conditions to pause, conditions to sell, how often you check.
- Try a fall-and-recovery path and a fall-and-stay-down path in the DCA vs lump sum calculator to see both outcomes.
- Do your own due diligence: review what you hold and its risks, and check your provider in the MAS Financial Institutions Directory.
