We've upgraded our debt fund ratings. Here's what to know

Summary: From January 2026, Value Research is upgrading its debt fund ratings. The new framework puts credit risk at the centre, adds guardrails on concentration and aims to reflect prudence over headline returns so ratings flag hidden risks before they hurt investors.

For over three decades, Value Research’s fund ratings have helped investors with a good starting point for evaluating funds. That core purpose remains unchanged. What has changed is the nature of risk in debt funds.

From January 1, 2026, Value Research is rolling out an upgraded rating framework for debt mutual funds.

Why debt fund ratings needed an upgrade

Debt investing has always required a different lens from equities. Returns are lower, risks are subtler and real damage to investors often shows up not in daily volatility, but during periods of stress.

Over the years, debt funds have evolved beyond simple interest rate products. Credit exposure, issuer concentration and liquidity risks now play a far bigger role in determining outcomes. The upgraded framework is designed to give you a better reflection of these realities.

Credit risk now sits at the heart of ratings

Two debt funds can post similar returns yet carry very different risks beneath the surface.

Earlier, debt fund ratings focused largely on risk-adjusted returns, where risk was defined as underperforming a risk-free alternative. While this captured short-term fluctuations well, it didn’t always reflect the structural credit risk embedded in a portfolio.

Under the new framework, credit quality becomes an explicit input. Returns are now evaluated in the context of the credit risk taken to generate them.

In simple terms, the framework helps you answer a more meaningful question: Did my fund outperform expectations given the risk it assumed, or did it merely earn higher returns by taking on more credit risk?

For readers who want to go deeper, the upgraded rating methodology explains how this is built into the process.

Rating caps act as guardrails

Consider a familiar scenario from the past.

A debt fund delivers consistently higher returns than peers. On the surface, it looks superior. But a closer look reveals meaningful investments in lower-rated bonds and concentrated bets.

For a long time, nothing goes wrong. Then a credit event hits—an issuer defaults or is sharply downgraded. The fund’s NAV falls dramatically, and you realise the risk was always there, just unseen.

The upgraded framework addresses this gap by capping a fund’s rating if it breaches internal tolerance limits for credit risk or issuer concentration in any of the last three months. In effect, ratings now respond to rising portfolio risk before that risk becomes your loss.

What this means for you

Investors should expect a few visible changes:

• Clearer differentiation between funds that earn returns prudently and those that take higher risks.
• If your debt fund invests heavily in lower-rated bonds, it may not earn top ratings despite strong returns.
• Rating distributions may not always look evenly spread. When risk is elevated, there may be no 4-star or 5-star debt fund in a category.

Most importantly, ratings will better reflect what matters most in debt investing: protecting capital and avoiding unpleasant surprises.

What has not changed

The philosophy behind Value Research ratings remains the same.

• Ratings remain fully quantitative and rule-based.
• The objective is not to predict returns, but to highlight consistency and prudence.

Read our upgraded rating methodology.