A Balanced Mix: Spotting and avoiding mutual fund overlap
A MUTUAL FUND CAN look diversified on paper and still own many of the same stocks as your other funds. That hidden duplication is portfolio overlap, and it can quietly dilute the benefit of spreading money across schemes.
Overlap means you may be paying for variety without actually getting it. If two equity funds both hold the same large banks, IT names, or consumer stocks, your portfolio may behave more like one concentrated bet than a balanced mix.
The risk is simple: when the same names fall, several of your funds can
fall together. In that case, you are not reducing risk so much as repeating it.
Start with the latest portfolio disclosure or factsheet for each fund. Compare the top 10 to 15 holdings, because repeated stock names are often the fastest clue.
Next, check the overlap percentage on a research platform or AMC disclosure page. A low figure usually suggests genuine diversification, while a high figure is a warning that two schemes are doing nearly the same job.
Do not stop at stock names. Sector overlap matters too, because two funds may hold different companies but still lean heavily on the same theme, such as banking or IT.
If you find heavy overlap, avoid panic selling. First, identify which fund is the duplicate by comparing cost, consistency, mandate, and fit with your goals. Then redirect new SIPs away from the redundant fund and toward a genuinely different category. Diversifying across categories, not just fund labels, is usually the cleaner fix.
There is no single official cutoff, but a practical rule is to try to keep portfolio overlap below about 20 per cent to 33 per cent for mutual funds. Some advisors treat anything above that range as a sign you are likely repeating the same exposure, though the right number depends on your strategy and fund mix.
The smartest portfolio is not the one with the most funds. It is the one where each fund earns its place.