Yield to Call vs Yield to Maturity: Why Singapore Bond Investors Can’t Ignore the Call Date
Last updated: October 2026
Yield to call (YTC) is the annualised return a bondholder earns if a bond is redeemed by the issuer at its first call date, while yield to maturity (YTM) is the annualised return if the bond is instead held until its final maturity date — and for callable bonds and perpetual securities common on SGX, the two figures can differ meaningfully. Knowing which one actually applies matters more than most retail bond investors realise.
Not financial advice. All figures for educational reference only. Data as at October 2026.
Key Takeaways
- Callable and perpetual Singapore bonds, including bank Additional Tier 1 instruments and many corporate perpetuals, almost always carry a first call date.
- YTC applies if the issuer redeems at the call date; YTM applies if it does not and the bond runs to (or, for perpetuals, has no) final maturity.
- Prudent bond investors typically quote the lower of YTC and YTM, often called “yield to worst”, as the more conservative planning figure.
- A coupon step-up at the call date changes the YTM math meaningfully if the bond is not called.
- Whether a bond trades above or below its par value changes which of the two yields ends up being the lower, more binding figure.
What Is Yield to Call vs Yield to Maturity?
For a plain vanilla bond with no call feature, yield to maturity is the only yield that matters — it is the discount rate that equates the bond’s current price to the present value of all its remaining coupon payments plus the final principal repayment at maturity. Many Singapore-listed bonds, however, particularly bank capital instruments and corporate perpetual securities, give the issuer the option (not the obligation) to redeem the bond early at a specified call date, usually at par. Yield to call applies the same present-value logic, but assumes the cashflows stop at that call date with principal repaid then, rather than running to final maturity (or, for a true perpetual, running indefinitely).
How Does Yield to Call vs Yield to Maturity Work in Singapore?
On SGX, callable structures are most common among bank Additional Tier 1 and Tier 2 capital securities and corporate perpetual bonds, which typically carry a first call date around five or ten years from issuance. Whether the issuer actually calls at that date depends largely on economics: if the issuer can refinance more cheaply elsewhere, it is more likely to call; if market rates have risen and refinancing would be more expensive, the issuer may leave the bond outstanding, especially where no coupon step-up (or only a modest one) applies after the call date. Investors therefore need to calculate both YTC and YTM and should default to treating the lower of the two — the “yield to worst” — as their working assumption, rather than assuming the issuer will definitely call.
Yield to Call vs Yield to Maturity Example
Consider a 10-year perpetual bond trading above par (say, at 102% of face value) with a first call date in year 5. Because the investor paid a premium to par but would only get par back if called, the yield to call comes out lower than the running coupon would suggest. If instead the bond were priced below par, the yield to call would typically be higher than yield to maturity, since the investor would gain from being redeemed at par sooner rather than later. This is why the relationship between YTC and YTM flips depending on whether the bond trades above or below par — there is no single rule of thumb that always applies.
Advantages of Yield to Call vs Yield to Maturity
- Understanding YTC avoids an inflated sense of return. Investors who only look at a headline running yield or coupon on a premium-priced callable bond can significantly overestimate their actual likely return if the bond is called early.
- The yield-to-worst convention gives a conservative planning anchor. Defaulting to the lower of YTC and YTM is a simple, disciplined habit that protects against overly optimistic return assumptions.
- Helps investors assess call risk pricing. Comparing YTC and YTM side by side highlights how much of a bond’s attractiveness depends on an assumption about issuer behaviour, not just its stated coupon.
- Useful across the whole SG perpetual/callable bond universe. The same framework applies consistently whether evaluating bank capital instruments, corporate perpetuals, or other callable structures.
Risks and Limitations
- Extension risk if the issuer doesn’t call. If rates have risen and refinancing is unattractive, an issuer may leave a bond outstanding well past its first call date, locking investors into a lower yield than the YTC assumption suggested.
- Reinvestment risk if the bond is called early. In a falling-rate environment, having a bond called away at par forces the investor to reinvest proceeds at lower prevailing rates, reducing future income.
- Misjudging which yield actually applies. Assuming the higher of YTC/YTM will be the realised return, rather than defaulting to the more conservative yield-to-worst figure, is a common and costly retail mistake.
- Coupon step-up terms vary and are easy to overlook. Whether and how much a bond’s coupon increases if not called materially changes the real YTM, and this detail is sometimes buried deep in the offering document.
Yield to Call vs Yield to Maturity
| Aspect | Yield to Call (YTC) | Yield to Maturity (YTM) |
|---|---|---|
| Assumption | Bond is redeemed by the issuer at the first call date | Bond is held to its final maturity (or runs indefinitely if a true perpetual) |
| When it is the lower (binding) figure | Typically when the bond is priced above par | Typically when the bond is priced below par |
| Main risk if misjudged | Extension risk — issuer doesn’t call when expected | Reinvestment risk — issuer calls earlier than expected |
| Affected materially by | Call date timing, price relative to par | Coupon step-up terms, time to final maturity |
| Conservative default | Use the lower of YTC and YTM (“yield to worst”) for planning | Same |
Source: Standard fixed income analytics methodology; general practice for SGX-listed callable and perpetual securities.
The Bottom Line
For Singapore bond investors, the practical rule is simple: never anchor your return expectations on just one of YTC or YTM — calculate both, default to the more conservative “yield to worst”, and always check the specific call date and step-up terms in the offering document rather than assuming standard market conventions apply.
Frequently Asked Questions
What is the difference between yield to call and yield to maturity?
Yield to call assumes the bond is redeemed by the issuer at its first call date, while yield to maturity assumes it is held to its final maturity date (or runs indefinitely for a true perpetual) — the two can differ meaningfully for callable bonds.
Which yield should I use when evaluating a Singapore callable bond?
Most bond investors default to the lower of yield to call and yield to maturity, commonly called “yield to worst”, as the more conservative planning figure.
Why does it matter whether a bond trades above or below par?
The relationship between YTC and YTM flips depending on price relative to par — a premium-priced bond typically has a lower YTC than YTM, while a discount-priced bond typically has a higher YTC than YTM.
What is extension risk in the context of callable bonds?
Extension risk is the risk that an issuer does not call a bond at its first call date, often because refinancing would be more expensive, leaving the investor holding the bond longer than the YTC assumption implied.
Do all Singapore perpetual bonds have a coupon step-up at the call date?
Not all of them. Many corporate perpetuals do, but newer bank capital instruments increasingly lack a step-up due to regulatory capital rules, so investors should check the specific offering document rather than assume one applies.
Is yield to call always lower than yield to maturity?
No. Whether YTC or YTM is lower depends on whether the bond is trading above or below par, among other factors, so both should be calculated rather than assumed.
