How to check mutual fund overlap, step by step
Two funds can have different names and still hold much the same things. Here is how to check how much your own funds overlap, and how to read the number you get.
Two ways to measure overlap
Holdings overlap compares the stocks two funds hold on a date, using each fund house's monthly portfolio disclosure. It tells you what the funds own.
Movement similarity compares how the two funds' NAVs actually moved day by day, over the last 12 months. It tells you how the funds behaved, and it reflects holdings, style and timing together. Arthtome uses this one.
How to read the percentage
Most Indian equity funds hold many of the same large companies, so scores of 85–95% are normal. A score of 95% or more means the two funds moved almost identically over the year. A lower score means they moved less alike.
A number is a fact about the past, not an instruction. It does not say whether to keep or change a fund.
Why it needs your CAS
You do not type fund names. The funds you hold are read from your detailed CAS, so the comparison is for the funds you actually own, not a pair you pick.
Check your funds
- 01Get your CASRequest a detailed statement from CAMS or KFintech.Open the page ↗
- 02Read it belowConfirm every fund you expect is found. Nothing is uploaded.
- 03Open the journalAdd it to see the most similar pair and each fund's share of your portfolio.
Common questions
Is this free?
Yes. The free plan shows your most similar pair and its percentage. The full pair-by-pair list is Premium.
Is it the same as stock-level overlap?
No. It compares how fund NAVs moved, not which stocks they hold on a given date.
How many funds do I need?
At least two. With one fund there is no pair to compare.
Read your CAS in this tab
The PDF is opened by your browser and nothing is uploaded. Close the tab and it's gone.
Ready when you are. It takes about two minutes.
Check my fundsArthtome is not a SEBI-registered Investment Adviser or Research Analyst. Data shown is based on the user's CAS and entries, AMFI's public NAV data and NSE's end-of-day prices. For informational and educational purposes only. No buy/sell recommendation. Past performance is not indicative of future returns.