Contents
Mid-cap refers to companies ranked 101–250 by full market capitalisation on Indian exchanges, as defined by SEBI in its Categorisation and Rationalisation circular (SEBI/HO/IMD/DF3/CIR/P/2017/114, October 2017). AMFI updates the list bi-annually (January and July); fund houses must realign within three months of each revision.
How the category is defined
SEBI mandates that a mid-cap equity fund invest a minimum of 65% of net assets in mid-cap stocks (rank 101–250). The remaining 35% may be deployed across other market-cap segments or liquid instruments at the fund manager's discretion.
The 65% minimum (lower than large-cap's 80%) acknowledges the liquidity constraints of mid-cap stocks — thinner float and wider bid-ask spreads make rapid rebalancing costlier. The bi-annual AMFI list uses six-month average full market cap from combined NSE/BSE data. A stock's category does not change between list revisions regardless of interim price movement, providing definitional stability.
As at the January 2025 AMFI list, the mid-cap band corresponded approximately to ₹8,000 crore (101st stock) to ₹30,000 crore (250th stock) by full market cap. These thresholds shift with market cycles — bull markets compress the range upward; corrections expand the lower boundary.
What investors should look at
- Volatility vs. large-cap: Mid-cap indices (Nifty Midcap 100 TRI) historically exhibit 30–50% higher annualised standard deviation than Nifty 100 TRI over long periods. Factor this into time-horizon decisions.
- Liquidity in downturns: Mid-cap stocks can see sharp NAV drops in risk-off markets as institutional sellers dominate. Evaluate the fund's maximum drawdown and recovery time (underwater period).
- Portfolio churn: Higher turnover ratios (>100%) in mid-cap funds can erode returns through transaction costs and short-term capital gains tax. Check the portfolio turnover disclosure in the fund's annual report.
- Fund manager tenure: Mid-cap alpha depends heavily on manager skill in identifying companies before they graduate to large-cap. Continuity of the lead fund manager matters more here than in large-cap mandates.
- AUM relative to float: Very large AUM mid-cap funds (>₹30,000 crore) face impact cost challenges — moving in and out of mid-cap positions becomes harder, gradually closing the alpha gap versus smaller peers.
Worked example
Hypothetical mid-cap fund analysis as at 31 March 2025 (figures illustrative; cross-verify with AMFI NAV history and fund factsheets):
| Fund | AUM (₹ Cr) | 5Y Annualised Return | Nifty Midcap 150 TRI (5Y) | Max Drawdown (5Y) |
|---|---|---|---|---|
| Kotak Emerging Equity – Direct | ≈47,000 | 28.4% | 26.1% | –33% |
| Nippon India Growth – Direct | ≈28,000 | 27.9% | 26.1% | –35% |
Both funds outperformed the benchmark on a 5-year annualised basis. The drawdown data highlights that mid-cap portfolios can lose roughly a third of value in severe corrections — relevant context for evaluating alignment with investment horizons.
See also
Primary source
SEBI Circular SEBI/HO/IMD/DF3/CIR/P/2017/114 (6 October 2017): sebi.gov.in. AMFI Bi-Annual Categorisation List: amfiindia.com.
Past performance is not indicative of future returns. Mutual fund investments are subject to market risks. Read all scheme-related documents carefully. ARN-314872. APMI APRN-01658. Content is informational and not investment advice.