Credit Spread

The question it answers

Why would you accept the same maturity as a government bond but get paid more? Because corporate borrowers can default and the sovereign, in its own currency, generally cannot. The credit spread is that gap. If a five-year government security (G-Sec) yields one rate and a five-year corporate bond of the same maturity yields more, the difference is the spread, usually quoted in basis points.

In India the benchmark is the G-Sec curve. Spreads are measured against it for everything from AAA-rated PSU paper to lower-rated NBFC debt. The lower the rating, the wider the spread investors demand.

What moves it

Spreads are a live read on risk appetite. When confidence improves or the RBI eases liquidity, spreads on top-rated corporate bonds compress as investors reach for yield. When stress builds, they widen. During India's 2025 rate-cycle, RBI measures helped pull AAA corporate spreads tighter, lowering borrowing costs for the best issuers.

Widening spreads can signal trouble even when overall yields look calm, because they isolate credit risk from interest-rate moves.

Why it matters to you

For a debt mutual fund investor, the spread is where credit-risk funds earn their extra return and take their extra risk. A fund loaded with lower-rated paper may report a juicy yield-to-maturity, but that yield is mostly compensation for default risk that can crystallise suddenly, as several Indian NBFC and credit episodes have shown.

Reading a bond's spread, rather than just its headline coupon, tells you what the market actually thinks of the issuer. A narrow spread says safe and crowded; a wide spread says risky and possibly cheap. The discipline is deciding whether the extra yield genuinely pays you for the risk you are taking on.