Sovereign vs Corporate Bond Yields — Why the Gap?
Corporate bonds pay more than government bonds — but that extra yield comes with extra risk. Here’s the trade-off.
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Government bonds (G-Secs) almost always offer lower yields than corporate bonds of similar maturity. That gap — the credit spread — is the market’s price for taking on extra risk.
Why G-Secs yield less
Government bonds carry effectively no credit risk — the government is considered the safest borrower. Investors accept a lower yield in exchange for that safety. G-Sec yields are the benchmark "risk-free" rate against which everything else is priced.
Why corporates yield more
A company can default, so a corporate bond must pay more to compensate for that credit risk. The lower the rating, the higher the yield demanded:
- AAA corporates → a small spread over G-Secs.
- Lower-rated bonds → a much wider spread (higher yield, higher default risk).
Reading the credit spread
- A widening spread signals rising risk aversion or stress — investors demand more to hold corporate debt.
- A narrowing spread signals confidence.
What it means for you
A higher yield is not free money — it reflects higher risk. When choosing corporate bond or credit risk funds over gilt funds, you’re being paid extra to bear default risk. Decide whether that compensation is worth it for your goals, and don’t chase the highest yield blindly. Education only, not a recommendation.
