The four-part lens—and the regulatory distinction
SEBI’s mutual fund framework classifies ranks 1–100 as large cap, 101–250 as mid cap, and rank 251 onward as small cap. That official definition has not changed.
For portfolio analysis, SIFPrime separates ranks 251–500 as the more institutionally visible small-cap segment and labels rank 501 onward as micro cap. The split is analytical, not a new SEBI category.
Ranks 1–100
Large cap
100
Official SEBI band
Ranks 101–250
Mid cap
150
Official SEBI band
Ranks 251–500
Small cap
250
SIFPrime analytical slice
Ranks 501 onward
Micro cap*
4,927
SIFPrime analytical label
Why this matters for Ex-Top-100 SIF strategies
An Equity Ex-Top-100 SIF is not simply a mid-cap fund with derivatives. Its eligible long universe can span companies immediately below rank 100 and extend further down the market-cap curve, subject to the strategy document.
- Liquidity: trading depth can fall rapidly as rank declines, especially below the top 500.
- Capacity: a strategy that works at a smaller AUM may become harder to execute as assets grow.
- Hedging: index futures may not perfectly offset stock-specific risk in a mid- and small-cap book.
- Style drift: investors should check whether holdings match the advertised opportunity set rather than relying on the fund label.
Explore the Equity Ex-Top-100 strategy guide and the plain-English Ex-Top-100 explainer.
Sector concentration changes across the rank bands
Financial Services leads the large-, mid- and top-500 small-cap bands by company count. Capital Goods becomes the largest micro-cap grouping in the matched sector sample. That shift matters because moving down the rank curve changes both stock-specific risk and the sector mix available to a manager.
| Band | Largest sector groups by company count |
|---|---|
| Large cap | Financial Services (27), Capital Goods (10), Auto (8), FMCG (7), Metals & Mining (7) |
| Mid cap | Financial Services (33), Healthcare (18), Capital Goods (17), Auto (10), Consumer Services (9) |
| Small cap | Financial Services (37), Capital Goods (35), Healthcare (26), Auto (20), Chemicals (14) |
| Micro cap* | Capital Goods (50), Financial Services (24), Consumer Durables (23), Healthcare (22), Chemicals (22) |
How an investor should use the master sheet
Market-cap rank is a classification input, not a recommendation. Use it to question portfolio liquidity, concentration, mandate fit and capacity. Then evaluate the manager’s process, gross and net exposure, short-book design, costs, drawdowns and redemption terms.
The next step is to see which companies actually crossed the rank boundaries. Read our December 2025 vs June 2026 reclassification analysis.
Frequently asked questions
What are the large-, mid- and small-cap rank bands in India?
SEBI’s mutual fund classification uses ranks 1–100 for large cap, 101–250 for mid cap, and 251 onward for small cap, based on six-month average market capitalisation.
Is micro cap an official SEBI category?
No. On this page, micro cap is an analytical label for companies ranked 501 onward. The official SEBI small-cap definition still begins at rank 251 and continues beyond rank 500.
Why does market-cap classification matter for Ex-Top-100 SIFs?
Ex-Top-100 strategies operate outside the largest 100 companies. Changes near the cutoff can alter the eligible opportunity set and can affect liquidity, capacity and portfolio construction.