A small cap fund is an equity mutual fund that invests at least 65% of its assets in companies ranked 251st and beyond by market capitalisation, as per SEBI's categorisation circular (SEBI/HO/IMD/DF3/CIR/2017/114). These companies are smaller, faster-growing, and significantly more volatile than large or mid cap peers.
What Is a Small Cap Fund in India?
A small cap fund is a SEBI-regulated open-ended equity mutual fund category. SEBI mandates that these funds maintain a minimum 65% allocation to small cap stocks at all times. Small cap companies are officially defined as those ranked 251st or lower by full market capitalisation on Indian stock exchanges. These businesses span early-stage growth companies, niche manufacturers, and regional market leaders. The universe includes thousands of listed companies, giving fund managers a vast stock-picking canvas. Small cap funds are distinct from large cap funds (top 100 companies) and mid cap funds (ranks 101–250). Investors access this category through both direct and regular plan options.
Section summary: A small cap fund, by SEBI definition, must hold at least 65% in companies ranked 251+ by market cap.
How Does a Small Cap Fund Work in India?
A small cap fund pools money from multiple investors and deploys it primarily into small cap equities. The fund manager selects stocks from the universe of companies ranked 251st and beyond. At least 65% of the portfolio must stay in small cap stocks; the remaining 35% can go into mid caps, large caps, debt, or cash. Fund managers typically run concentrated portfolios of 40–80 stocks to generate meaningful alpha. Small cap stocks are thinly traded, so large buy or sell orders can move their prices significantly. This liquidity risk is unique to the small cap category compared to large cap funds. SEBI's Total Expense Ratio (TER) cap for equity funds is 2.25%, though direct plans are typically 0.5%–1% lower than regular plans. Understanding the difference between plan types matters — read our guide on direct vs regular mutual fund to see the cost impact over time.
Section summary: Small cap funds must keep 65% in sub-251 ranked stocks, with the remainder flexibly allocated by the fund manager.
How Is a Small Cap Fund's Performance Calculated?
Small cap fund performance is measured using several metrics investors should understand before investing.
- Absolute Returns: Point-to-point gain or loss over a specific period, expressed as a percentage.
- CAGR (Compounded Annual Growth Rate): Annualised return over 3, 5, or 10 years — the most comparable metric across funds.
- Alpha: Return generated above the benchmark index (e.g., Nifty Smallcap 250 TRI); positive alpha means the manager added value.
- Beta: Sensitivity to market movements; a beta above 1.0 means the fund is more volatile than its benchmark.
- Sharpe Ratio: Risk-adjusted return; higher is better. It equals (Fund Return − Risk-Free Rate) ÷ Standard Deviation.
- Standard Deviation: Measures return volatility; small cap funds typically have standard deviations of 18%–28% annually.
- TER (Total Expense Ratio): Annual fee deducted from NAV; a 0.5% difference in TER compounds significantly over 10 years. Learn more in our explainer on what is TER in mutual funds.
BullWiser's proprietary BullWiser Score combines 5-year returns (30%), risk metrics (25%), expense ratio (20%), consistency (15%), and fund manager tenure (10%) into a single rating. You can view all these metrics instantly on the BullWiser MF Analyser.
Section summary: Evaluating a small cap fund requires looking beyond raw returns — Sharpe Ratio, Alpha, Beta, and TER are equally critical.
Small Cap vs Mid Cap vs Large Cap Fund — Comparison Table
| Feature | Small Cap Fund | Mid Cap Fund | Large Cap Fund |
|---|---|---|---|
| SEBI Definition | Companies ranked 251+ | Companies ranked 101–250 | Top 100 companies |
| Minimum Equity Allocation | 65% in small caps | 65% in mid caps | 80% in large caps |
| Typical Market Cap Range | Below ~Rs 5,000 cr | ~Rs 5,000–20,000 cr | Above ~Rs 20,000 cr |
| Return Potential | Highest (long term) | High | Moderate |
| Volatility / Risk | Very High | High | Moderate |
| Liquidity Risk | High (thin trading) | Moderate | Low |
| Recommended Horizon | 7–10+ years | 5–7+ years | 3–5+ years |
| SEBI TER Cap (Equity) | 2.25% | 2.25% | 2.25% |
| Suitable for | Aggressive investors | Moderate-aggressive | Conservative equity |
Section summary: Small cap funds offer the highest growth potential among the three SEBI equity categories, but also carry the highest volatility and liquidity risk.
Small Cap Fund — Real Example with Numbers
Consider two investors, Priya and Rahul, who each invest Rs 10,000 per month via SIP starting in May 2016.
Priya invests in a small cap fund (direct plan, TER: 0.35%) that delivers 18% CAGR over 10 years.
Rahul invests in a large cap fund (direct plan, TER: 0.80%) that delivers 13% CAGR over 10 years.
| Metric | Priya (Small Cap) | Rahul (Large Cap) |
|---|---|---|
| Monthly SIP | Rs 10,000 | Rs 10,000 |
| Period | 10 years | 10 years |
| Total Invested | Rs 12,00,000 | Rs 12,00,000 |
| Estimated Corpus | ~Rs 37,00,000 | ~Rs 23,90,000 |
| CAGR Assumed | 18% | 13% |
| Peak Drawdown (typical) | ~45–55% | ~25–35% |
| TER (Direct) | 0.35% | 0.80% |
Priya's corpus is approximately Rs 13 lakh higher than Rahul's. However, during 2020's COVID crash, her fund's NAV fell roughly 50% from its peak. Priya continued her SIP through the downturn, which is essential in small cap investing. If Priya had stopped her SIP at the bottom, she would have lost the recovery gains entirely. SIP has no minimum tenure per SEBI rules, but equity — especially small cap — is recommended for 7 years or more. AMFI advises investors to check their risk tolerance before allocating to this category. For a full framework on evaluating such funds, read our guide on how to analyse mutual funds.
Section summary: A 10-year SIP in a small cap fund can generate significantly higher wealth than large cap, but only if the investor stays invested through deep drawdowns.
Who Should Invest in Small Cap Funds?
Small cap funds suit investors with a high risk appetite and a long investment horizon of at least 7–10 years. Young investors in their 20s and 30s with stable incomes and low immediate financial obligations are ideal candidates. Investors who already hold large cap or mid cap exposure can use small caps to boost portfolio returns at the margins. Small cap funds are not suitable for investors needing capital within 3–5 years. They are also not appropriate as a first mutual fund investment for someone new to equity markets. SEBI recommends that investors complete a risk profiling exercise (KYC + risk profile) before investing in high-volatility categories. A recommended allocation to small caps for an aggressive investor is 15%–25% of the total equity portfolio. Conservative or retired investors should avoid or minimise small cap exposure due to sequence-of-returns risk. For deeper guidance on this specific category, explore our dedicated article on what is small cap fund.
Section summary: Small cap funds are best suited for aggressive, long-horizon investors who can stomach 40%–55% drawdowns without panic-selling.
What Are the Risks of Small Cap Funds in India?
Small cap funds carry several risks investors must understand before committing capital.
- Volatility Risk: Small cap indices can fall 45–60% during bear markets; Nifty Smallcap 250 fell over 55% from Jan 2018 to Mar 2020.
- Liquidity Risk: Small cap stocks have lower daily trading volumes; exiting large positions can take days and move prices against the fund.
- Business Risk: Smaller companies have weaker balance sheets, limited access to credit, and lower pricing power during economic downturns.
- Concentration Risk: Portfolios of 50–80 stocks mean a single bad bet can meaningfully hurt NAV.
- Fund Size Risk: Large AUM (above Rs 10,000–15,000 cr) in a small cap fund makes it harder to deploy cash efficiently into illiquid stocks.
- Manager Risk: Small cap performance is more dependent on active stock selection than large cap; manager changes can alter fund character significantly.
SEBI has addressed liquidity concerns by allowing small cap funds to temporarily pause fresh SIP investments when fund size becomes unwieldy — several AMCs exercised this option during 2021–2023.
Section summary: Liquidity, volatility, and business risk are the three primary risks unique to the small cap category in India.
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Open BullWiser MF Analyser →Frequently Asked Questions about Small Cap Funds in India
What is the SEBI definition of a small cap company in India?
SEBI defines small cap companies as those ranked 251st and beyond by full market capitalisation on Indian stock exchanges. This list is updated semi-annually by AMFI based on the latest market cap data. As of early 2025, a small cap company typically has a market cap below Rs 5,000 crore, though this threshold shifts with market movements.
What is the minimum investment in a small cap fund?
Most small cap funds allow lump sum investments starting at Rs 1,000 and SIP investments starting at Rs 100–500 per month, depending on the AMC. SEBI does not prescribe a minimum investment amount for equity mutual funds. Investors should check the specific fund's Scheme Information Document (SID) for exact minimums.
How long should I stay invested in a small cap fund?
AMFI and most financial planners recommend a minimum horizon of 7–10 years for small cap funds. Shorter horizons expose investors to the full brunt of market cycles without adequate time for recovery. SIPs have no minimum tenure per SEBI rules, but equity investing — especially small cap — rewards patience significantly.
Are small cap fund returns taxed in India?
Yes. Small cap funds are equity funds for taxation purposes. Short-term capital gains (STCG) on units held less than 12 months are taxed at 20% (post Budget 2024). Long-term capital gains (LTCG) on units held more than 12 months are taxed at 12.5% on gains exceeding Rs 1.25 lakh per financial year. No indexation benefit applies to equity funds.
What is the difference between a small cap fund and a micro cap fund in India?
SEBI does not recognise a separate micro cap fund category in India. All companies ranked 251+ are classified as small cap under Indian regulations. Some international markets define micro caps separately (below $300 million), but Indian investors have no such SEBI-approved distinct category to invest in through regulated mutual funds.
Can I do SIP in a small cap fund?
Yes, SIPs are strongly recommended for small cap funds over lump sum investments. SIP averaging reduces the impact of extreme volatility by buying more units when NAVs fall. SEBI imposes no restrictions on SIP frequency or amount for small cap funds. Most AMCs offer weekly, monthly, and quarterly SIP options for this category.
What is the TER of a small cap fund?
SEBI caps the TER for equity mutual funds, including small cap funds, at 2.25% per annum. Direct plans are typically 0.5%–1% cheaper than regular plans annually. In practice, direct plan TERs for small cap funds range from 0.30% to 0.70%, while regular plans range from 1.50% to 2.00%. A lower TER directly boosts your net returns.
How is a small cap fund different from a flexi cap fund?
A small cap fund must hold at least 65% in companies ranked 251+, with limited flexibility. A flexi cap fund can invest across large, mid, and small cap stocks in any proportion — it has no minimum allocation to any market cap segment. Small cap funds carry higher concentration risk in small businesses; flexi cap funds offer more diversification.
Related: More from BullWiser
- Direct vs Regular Mutual Fund — Which Saves You More Money?
- What Is TER in Mutual Funds? How Expense Ratio Eats Your Returns
- How to Analyse Mutual Funds — A Step-by-Step Guide for Indian Investors
Disclaimer: This article is for educational purposes only and does not constitute investment advice. Mutual fund investments are subject to market risks. Past performance is not indicative of future returns. Please consult a SEBI-registered investment advisor before making investment decisions. Data sourced from AMFI and SEBI — verify current figures on official sources.