What happens when a bond in your debt fund goes bad

The basic idea. A debt fund lends your money out by holding bonds (loans to governments and companies). When one of those bonds goes bad, meaning the borrower may not repay, the fund can wall off that single holding into a separate pocket, called a segregated portfolio or “side pocketing”. It exists so the loss stays with the people who owned the bad bond, not whoever is left behind.

The problem it solves. A bond in a debt fund gets downgraded. Nervous investors redeem. The fund cannot sell the bad bond, because nobody wants it, so it sells the good ones instead. Everyone who stayed now owns a bigger share of the problem.

A rupee example. A ₹10,000 crore scheme holds 8 percent in one debenture, ₹800 crore. Investors pull out ₹2,000 crore. The corpus drops to ₹8,000 crore, but the ₹800 crore of bad paper is still there. Its share has risen from 8 percent to 10 percent, and the people who stayed did nothing to deserve it.

What SEBI allowed. From December 2018, a fund can move the affected paper into a segregated portfolio, separate from the main one. Everyone holding units on the day of the credit event gets the same number of units in the segregated portfolio, so the loss stays with the people who owned it.

What that means for you. You cannot buy or sell those units, but the fund must list them on an exchange within 10 working days so there is a route out. The AMC charges no investment and advisory fee on them, and other costs only come off if money is actually recovered.

For unrated paper the trigger is stricter still: an actual default on interest or principal, not just a downgrade.

How you would notice. The AMC has to issue a press release immediately, and from the day of the credit event it publishes two NAVs: one for the main portfolio and one for the segregated part. Seeing two numbers where there was one is the signal.

What happens next. The fund pursues recovery. If money comes back, it is paid to whoever held the segregated units. If nothing comes back, those units are worth nothing. Listing them on an exchange gives you a route out, but there may be few buyers and the price can sit well below NAV.

What it changes about choosing a debt fund. Look at the credit quality of what a scheme holds, not just its past return. A fund reaching for extra yield is being paid to take exactly this risk, and in a good year that looks like skill.