Singapore Bond Duration Risk — Bond duration risk in Singapore refers to the sensitivity of a bond’s price to changes in interest rates. A bond with a duration of 5 years will fall approximately 5% in price for every 1 percentage point rise in yields. Duration risk is a critical consideration for Singapore investors holding Singapore Government Securities (SGS), Singapore Savings Bonds (SSB), or corporate bonds. This article is for informational purposes only and does not constitute financial advice.
Table of Contents
- Definition: What Is Singapore Bond Duration Risk?
- How Duration Measures Interest Rate Sensitivity
- Duration Risk in Singapore Savings Bonds (SSBs)
- Managing Duration Risk in a Singapore Bond Portfolio
- Duration Risk for Corporate Bond Investors in Singapore
- Frequently Asked Questions
How Duration Measures Interest Rate Sensitivity
Duration is expressed in years and measures how long, on average, you wait to receive the bond’s cash flows (coupons and principal). The longer the duration, the more sensitive the bond’s price is to interest rate changes. A Singapore Government Securities (SGS) bond maturing in 2030 has a shorter duration — and lower interest rate risk — than one maturing in 2040. Modified duration is the most commonly used measure: if a bond has a modified duration of 6, a 1% rise in yields causes its price to fall approximately 6%.
In 2022–2023, when the US Federal Reserve raised rates aggressively, global bond prices fell sharply. Singapore investors holding long-duration bond ETFs such as LSBU (iShares Core SGD Government Bond ETF) saw significant mark-to-market losses, even though the underlying bonds were still credit-risk free.
Duration Risk in Singapore Savings Bonds (SSBs)
SSBs have a unique feature: they can be redeemed early (in the following month) with no penalty and no loss of principal. This makes SSBs effectively zero duration risk for investors who may need to exit before maturity. The step-up interest structure (rising rates over 10 years) rewards long-term holders. As at mid-2026, SSB interest rates have come off their 2023 peaks of ~3.47% p.a. (10-year average) but remain attractive versus bank fixed deposits for risk-averse investors.
Managing Duration Risk in a Singapore Bond Portfolio
Several strategies help manage duration risk:
- Bond laddering: Buy bonds with staggered maturities (1, 3, 5, 7, 10 years) so that some bonds mature every few years, reducing price sensitivity to any single rate move.
- Short-duration tilt: In a rising rate environment, tilt towards shorter-duration bonds (T-bills, 1–3 year SGS). As rates fall, extend duration to lock in higher yields.
- Floating-rate instruments: SORA-linked bonds or floating-rate notes have near-zero duration risk as their coupons reset with market rates.
- SSBs as a duration-free anchor: For retail investors, SSBs with their early redemption feature eliminate duration risk while offering competitive yields.
Duration Risk for Corporate Bond Investors in Singapore
Singapore dollar (SGD) corporate bonds are typically sold in minimum denominations of S$250,000 to institutional investors via SGX bond market, though some are available in S$1,000 or S$2,000 lots on the DBS Bond Exchange or Phillip Bond Exchange. For retail investors, corporate bond exposure is best accessed via bond ETFs (e.g., ABF Singapore Bond Index Fund — A35) or unit trusts on FSMOne. Corporate bonds carry both duration risk (interest rate sensitivity) and credit risk (default risk) — a combination that requires more due diligence than SGS bonds.