Large cap, mid cap and small cap funds are the three building blocks of most Indian equity portfolios. They differ in the size of companies they buy, how much their value swings, and how long you may need to stay invested. This guide on large cap vs mid cap vs small cap funds explains SEBI’s definitions, risk, horizon and how to compare the three.
Key takeaways
- SEBI defines large caps as the top 100 companies by full market capitalisation, mid caps as 101 to 250, and small caps as 251 onwards.
- Large cap funds must hold at least 80% in large caps; mid cap and small cap funds must hold at least 65% in their segment.
- Volatility usually rises as company size falls, so small cap funds tend to swing the most.
- Longer horizons are generally suggested for mid and small cap funds than for large cap funds.
- All three are taxed as equity-oriented funds.
- Many investors combine categories rather than choosing just one.
How SEBI classifies company size
SEBI’s October 2017 circular on categorisation and rationalisation of mutual fund schemes set a uniform definition of company size, based on full market capitalisation:
- Large cap: 1st to 100th company
- Mid cap: 101st to 250th company
- Small cap: 251st company onwards
AMFI publishes the updated list every six months, using average market capitalisation over the previous six months. When a company moves up or down the ranking, fund houses get time to rebalance. This is why a stock can be a mid cap one year and a large cap the next.
What is a large cap fund?
A large cap fund invests mainly in India’s 100 biggest listed companies. Under SEBI rules, it must hold at least 80% of its total assets in large cap stocks.
Characteristics of large cap funds
- Companies are usually well-established market leaders with long track records.
- Stocks are highly liquid, so funds can buy and sell easily.
- Prices tend to be less volatile than mid and small caps, though they still fall in market corrections.
- Many large cap funds find it hard to beat their benchmark consistently, which is why index funds are a popular alternative for this segment. See our index funds guide.
Explore the category on the Quantsgrow large cap funds page.
What is a mid cap fund?
A mid cap fund invests mainly in companies ranked 101 to 250. SEBI requires at least 65% of total assets in mid cap stocks.
Characteristics of mid cap funds
- Companies are often growing businesses that may become tomorrow’s large caps.
- Growth potential is higher than large caps, but so is volatility.
- Liquidity is lower than in large caps, especially during market stress.
- Performance can swing widely between strong and weak market phases.
Compare schemes on the Quantsgrow mid cap funds page.
What is a small cap fund?
A small cap fund invests mainly in companies ranked 251st and below. SEBI requires at least 65% of total assets in small cap stocks.
Characteristics of small cap funds
- Companies are smaller, sometimes in niche or emerging businesses.
- Return potential is highest, but so are volatility and the depth of falls.
- Liquidity can be thin, and some fund houses have at times restricted fresh lumpsum inflows into small cap schemes.
- Business risk is higher, as smaller companies may be more affected by economic slowdowns.
See the category on the Quantsgrow small cap funds page.
Large cap vs mid cap vs small cap funds: comparison table
| Feature | Large cap fund | Mid cap fund | Small cap fund |
|---|---|---|---|
| Companies covered | Top 100 | 101st to 250th | 251st onwards |
| SEBI minimum allocation | 80% in large caps | 65% in mid caps | 65% in small caps |
| Typical volatility | Lower | Higher | Highest |
| Liquidity of holdings | Very high | Moderate | Lower |
| Depth of falls in corrections | Usually smaller | Larger | Often the largest |
| Commonly suggested horizon | 5+ years | 7+ years | 7 to 10+ years |
| Role in a portfolio | Core stability | Growth | High growth, high risk |
| Tax treatment | Equity-oriented | Equity-oriented | Equity-oriented |
The horizon ranges above are general guidelines often used in investor education, not rules. Your own horizon should depend on your goal.
Why volatility matters: a recovery example
Volatility is not just about daily ups and downs. Deeper falls need much bigger gains to recover. Here is a hypothetical example, for illustration only:
- You invest ₹1,00,000 in each of three funds.
- In a market correction, the large cap fund falls 20%, to ₹80,000.
- The mid cap fund falls 30%, to ₹70,000.
- The small cap fund falls 35%, to ₹65,000.
To get back to ₹1,00,000:
- The large cap fund needs a gain of 25% (₹80,000 × 1.25 = ₹1,00,000).
- The mid cap fund needs a gain of about 42.9% (₹70,000 × 1.429 ≈ ₹1,00,000).
- The small cap fund needs a gain of about 53.8% (₹65,000 × 1.538 ≈ ₹1,00,000).
This is why longer horizons are usually suggested for mid and small cap funds. Recovery from a deep fall can take years, and investors who exit midway lock in the loss.
How long should you stay invested?
Your horizon should come from your goal, not from the fund category. As a general framework:
- Money needed within 3 years is usually not considered suitable for any pure equity fund.
- For goals 5 or more years away, large cap funds are often seen as the more stable equity option.
- For goals 7 or more years away, investors with higher risk tolerance may consider some mid and small cap exposure.
You can test how different horizons and return assumptions affect your target corpus with the Quantsgrow goal planner. Remember that any assumed return is for illustration only.
How to compare funds within each category
- Compare with the right benchmark: a large cap index for large cap funds, a mid cap index for mid cap funds, and so on.
- Look at rolling returns across 3, 5 and 7 years instead of a single trailing return.
- Check downside capture and maximum drawdown to see how the fund behaves in falls.
- Check the expense ratio, and note that direct plans usually cost less than regular plans.
- Review portfolio concentration and the actual market cap split in the latest factsheet.
- Use XIRR to measure your own SIP returns, as explained in our CAGR vs XIRR guide.
If you want a single fund that combines segments, read our comparison of flexi cap vs multi cap funds.
Tax on large, mid and small cap funds
All three categories are equity-oriented funds. As per the changes in Budget 2024 (effective 23 July 2024):
- Short-term capital gains (held up to 12 months): taxed at 20%.
- Long-term capital gains (held over 12 months): taxed at 12.5% on gains above ₹1.25 lakh per financial year.
Surcharge and cess are extra. Always confirm current rules on the Income Tax Department website.
Common mistakes to avoid
- Choosing small cap funds only because of recent high returns. Strong periods are often followed by sharp corrections.
- Investing short-term money in mid or small cap funds.
- Assuming large cap funds cannot fall. They can, and do, in market downturns.
- Holding too many funds in the same category, which adds overlap but little diversification.
- Stopping SIPs during corrections, which is when units are bought at lower NAVs.
The smaller the company, the bigger the potential swing. Match the category to your time horizon and your ability to sit through falls.
Conclusion
The large cap vs mid cap vs small cap funds choice is really a choice about risk and time. Large cap funds offer relative stability, mid cap funds add growth potential with more volatility, and small cap funds carry the highest potential and the highest risk. Many investors use a mix, sized to their goals and comfort with drawdowns.
To study each category in detail, open the free Quantsgrow app and compare schemes on the large cap, mid cap and small cap fund pages.
Frequently Asked Questions
How does SEBI define large cap, mid cap and small cap companies?
SEBI uses full market capitalisation to rank listed companies. The 1st to 100th companies are large caps, the 101st to 250th are mid caps, and the 251st company onwards are small caps. AMFI publishes this ranked list every six months, and mutual funds use it to classify the stocks they hold and to meet their category rules.
How much must a large cap fund invest in large cap stocks?
Under SEBI’s categorisation rules, a large cap fund must invest at least 80% of its total assets in large cap stocks. A mid cap fund must invest at least 65% in mid cap stocks, and a small cap fund must invest at least 65% in small cap stocks. The remaining portion can be invested in other segments, debt or cash within scheme limits.
Are small cap funds always better for the long term?
No. Small cap funds have the potential for higher growth, but they also carry higher volatility, deeper drawdowns and lower liquidity in the underlying stocks. Their returns can lag large caps for long stretches. Whether they suit you depends on your goals, time horizon and ability to stay invested through sharp falls. Past performance does not guarantee future results.
What investment horizon is usually suggested for each category?
There is no fixed rule, but general investor education material often suggests at least five years for large cap funds and seven years or more for mid and small cap funds. Longer periods give investments more time to recover from market falls. Your own horizon should match your goal, and you may want to discuss it with a SEBI-registered investment adviser.
Is tax different for large, mid and small cap funds?
No. All three are equity-oriented mutual funds, so they follow the same tax rules. After Budget 2024, short-term gains on units held up to 12 months are taxed at 20%, and long-term gains above ₹1.25 lakh in a financial year are taxed at 12.5%. Surcharge and cess apply extra. Check the Income Tax Department website for the latest rules.
Disclaimer
This article is for educational purposes only and is not investment advice. Quantsgrow is not a SEBI-registered investment adviser, and all examples are hypothetical and for illustration only. Please consult a SEBI-registered investment adviser before making any investment decision. Mutual fund investments are subject to market risks; read all scheme-related documents carefully.
