INVESTING · Singapore Investing Glossary

Rebalancing Portfolio Singapore

Portfolio rebalancing is the process of realigning the weightings of your investment portfolio to your target asset allocation — selling assets that have grown above their target weight and buying those that have fallen below. For Singapore investors holding a mix of S-REITs, Singapore stocks, global ETFs, bonds, and CPF, regular rebalancing maintains your desired risk level and can improve long-term returns through systematic buy-low, sell-high discipline.

This article is for informational purposes only and does not constitute financial advice. Always consult a licensed financial adviser before making investment decisions.

Table of Contents

Why Rebalancing Matters

Without rebalancing, a portfolio’s risk profile drifts over time. Consider a Singapore investor who started with 60% stocks and 40% bonds. After a strong equity bull run (like SGX stocks and REITs in 2019), the portfolio might have drifted to 75% stocks and 25% bonds — taking on significantly more risk than intended, right before a potential downturn.

Rebalancing forces discipline: it systematically sells outperformers (relatively expensive) and buys underperformers (relatively cheap). This is a mechanical implementation of buy low, sell high — without requiring any predictions about market direction.

Academic research (including studies on Singapore-style multi-asset portfolios) consistently shows that rebalancing improves risk-adjusted returns over time compared to a drifting, never-rebalanced portfolio.

Common Rebalancing Strategies

There are two main approaches Singapore investors use:

• Calendar-based rebalancing: Rebalance at fixed intervals — quarterly, semi-annually, or annually. Simple to implement. Annual rebalancing is most common and cost-effective for Singapore retail investors given brokerage commissions.
• Threshold-based rebalancing: Rebalance whenever any asset class drifts more than a set threshold (e.g. ±5% or ±10%) from the target allocation. This is more responsive to market moves but requires more monitoring.

A practical approach for Singapore investors: combine both — check quarterly, but only rebalance if any asset has drifted more than 10% from target. This reduces unnecessary trading and transaction costs.

How to Rebalance a Singapore Portfolio

Step 1: Record current allocations
List all holdings with current market values. Group them into: Singapore equities (SGX stocks), S-REITs, international equities (e.g. CSPX ETF on LSE), fixed income (SGS bonds, SSBs, bond ETFs), and cash/equivalents (MariBank, T-bills).

Step 2: Compare to target allocation
Identify which asset classes have drifted above or below their target weights.

Step 3: Choose your rebalancing method
There are three ways to rebalance:

• Sell and buy: Sell overweight assets and use proceeds to buy underweight ones. Simple but triggers brokerage costs and potential tax events.
• Direct new contributions: Direct new investment contributions exclusively to underweight assets until balance is restored. Zero additional transaction costs — the preferred approach for investors making regular monthly investments.
• Dividend redirection: Redirect S-REIT distributions or stock dividends to buy underweight assets. A natural rebalancing tool if you receive regular income from your portfolio.

Tax and Cost Considerations in Singapore

Singapore has no capital gains tax as at Q1 2026, which significantly simplifies rebalancing compared to markets like the US (where selling triggers capital gains tax liability). This means Singapore investors can rebalance more freely without tax-related hesitation.

Key cost considerations:

• Brokerage commissions: Most Singapore brokerages charge 0.25–0.28% per trade (minimum S$10–25). For small portfolios (below S$200,000), rebalancing costs can be significant relative to the benefit — use the “direct new contributions” method to minimise trading.
• Bid-ask spreads: Less liquid Singapore stocks and small-cap REITs have wider spreads. Factor this into rebalancing costs.
• CPF rebalancing: CPFIS investments can be rebalanced without tax consequences, but CPF funds withdrawn from one investment must be re-invested within the CPFIS-approved universe. CPF OA and SA balances are not directly rebalanceable — they are separate from your investment portfolio.

Sample Rebalancing Plan for a Singapore Investor

A typical target allocation for a 40-year-old Singapore investor building toward retirement:

Review this allocation as you age — typically shifting 5–10% from equities to fixed income per decade. See our Asset Allocation Singapore guide for more on building the right mix.

Frequently Asked Questions

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Dive deeper into Singapore investing with our guides on S-REITs, ETFs, CPF strategies, and our full glossary of investing terms.