Methodology

Data Source

We parse monthly portfolio disclosure files published directly by AMCs. MFXray does not infer holdings from NAV movements, broker notes, or third-party article summaries.

What Counts As Overlap

Overlap is calculated on equity holdings only. For each stock that appears in both funds, we take the lower of the two portfolio weights. The sum of those shared minimum weights is the portfolio overlap percentage.

Example: if Fund A holds a stock at 7% and Fund B holds the same stock at 5%, that stock contributes 5% to overlap.

What Is Excluded

Debt instruments, government securities, money market instruments, and cash-like exposures are excluded from overlap calculations. The goal is to measure stock-level duplication, not temporary treasury positions.

Active vs Index Products

Some homepage and rankings sections prioritize active funds because overlap between two passive products can be mechanically expected. Where filters are applied, they are meant to surface comparisons that are more useful for a retail investor making diversification decisions.

Refresh Cadence

Public pages are built from local JSON snapshots generated in the monthly data pipeline. The live portfolio analyzer uses the latest synced analyzer month in Supabase so the static site and runtime tool stay aligned.

Coverage Today

Current AMC coverage: Axis, HDFC, ICICI, Kotak, Mirae, Motilal, Nippon, PPFAS, Quant, SBI.