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Understand mutual funds — NAV, SIP, types, how to invest. A step-by-step complete guide for beginners with examples.
Published by The Retail Trader · AUG 10, 2026 · Features
Understand mutual funds — NAV, SIP, types, how to invest. A step-by-step complete guide for beginners with examples.
A mutual fund is a pool — many people put their money into one fund, and a professional fund manager invests that money in stocks/bonds.
In simple words:
• You have ₹1,000
• 10,000 people each gave ₹1,000 = ₹1 Crore total
• The fund manager invests the ₹1 Cr in stocks
• Profit/loss is distributed among all the holders (pro-rata)
Benefits of a mutual fund:
• Professional management (an expert runs it)
• Diversification (money spread across 30-50 stocks)
• Low minimum (start from ₹100)
• Liquidity (withdraw any time)
• SIP option (automatic every month)
NAV (Net Asset Value):
• The "price" of a mutual fund
• NAV = (Total Assets - Liabilities) / Total Units
• NAV is calculated every business day
• If the fund's profit rises → NAV goes up
• If there is a loss → NAV goes down
SIP (Systematic Investment Plan):
• Investing a fixed amount every month
• Example: ₹5,000/month auto-debit
• Benefit: Rupee cost averaging (market up → fewer units, down → more units)
• Averaging benefit over the long term
Lump Sum:
• Investing a large amount at one time
• Example: ₹1,00,000 all at once
• Best when: Market low (after a crash)
Expense Ratio:
• The fund's management fee
• Example: 1.5% expense ratio = ₹1,500 per ₹1,00,000 per year
• Lower expense ratio = better returns for you
• Index funds: 0.1-0.3% (cheapest)
• Active funds: 1.5-2.5%
Exit Load:
• A penalty if you withdraw within X time
• Example: 1% exit load if withdrawn within 1 year
• Most funds: 1% exit load for 1 year, zero after
By Asset Class:
• Equity (Stock) Funds — Investment: Stocks, Risk: High, Return: High (10-15% CAGR), Best For: Long-term (5+ years)
• Debt Funds — Investment: Bonds/FD, Risk: Low, Return: Moderate (6-8%), Best For: Short-term (1-3 years)
• Hybrid Funds — Investment: Stocks + Bonds, Risk: Medium, Return: Moderate (8-10%), Best For: Medium-term (3-5 years)
• Gold Funds — Investment: Gold ETF/SGB, Risk: Medium, Return: 8-10%, Best For: Hedging
By Market Cap (Equity Funds):
• Large Cap — Stocks: Top 100 companies, Risk: Low, Return: Steady (10-12%)
• Mid Cap — Stocks: 101-250 companies, Risk: Medium, Return: Higher (12-15%)
• Small Cap — Stocks: 251+ companies, Risk: High, Return: Highest (15-20%) but volatile
• Multi Cap — Stocks: All sizes, Risk: Medium, Return: Balanced (11-14%)
• Index Funds — Stocks: Nifty 50/Sensex, Risk: Low, Return: Market return (~11%)
By Strategy:
• Active Funds — Strategy: Manager picks stocks, Expense: 1.5-2.5%, Good?: If manager is good
• Index Funds — Strategy: Copy Nifty 50, Expense: 0.1-0.5%, Good?: Best for most people
• ELSS — Strategy: Tax saving (80C), Expense: 1.5-2%, Good?: 3 year lock-in
Advantages:
• Rupee cost averaging (market up/down doesn't matter)
• No timing needed (invest regularly)
• Disciplined investing
• Low stress
• Compounding over years
Example:
• SIP ₹5,000/month for 10 years
• Average return: 12% CAGR
• Total invested: ₹6,00,000
• Final value: ₹11,62,000 (almost 2x)
• SIP ₹5,000/month for 20 years
• Total invested: ₹12,00,000
• Final value: ₹49,96,000 (4x)
• SIP ₹5,000/month for 30 years
• Total invested: ₹18,00,000
• Final value: ₹1,76,49,000 (10x!)
Compounding magic: More time = exponentially more return.
When to use:
• After a market crash (Nifty down 20%+)
• Bonus/received large amount
• Market at multi-year lows
When NOT to use:
• Market at all-time highs
• Uncertain about market direction
• Short-term money (might need in 6 months)
Step 1: KYC (One-time):
• PAN card + Aadhaar + address proof
• Most apps do online KYC in 10 minutes
• Zerodha, Groww, Upstox, ET Money — available in all apps
Step 2: Choose Fund Type:
• Beginner: Nifty 50 Index Fund (cheapest, safest)
• Moderate risk: Large Cap Fund
• High risk: Mid/Small Cap Fund
• Balanced: Hybrid Fund
Step 3: Choose Specific Fund:
• Check: 5-year and 10-year returns
• Check: Expense ratio (lower = better)
• Check: Fund manager track record
• Check: AUM (Assets Under Management) — ₹500+ Cr preferred
• Check: Consistency (not 1-year wonder)
Step 4: Start SIP:
• Decide amount: ₹500-₹10,000/month (whatever is comfortable)
• Decide date: 1st, 5th, 10th, 15th, 20th, 25th
• Set auto-debit (NACH mandate)
• Done!
Step 5: Review Yearly:
• Check: Is fund underperforming benchmark?
• Check: Has fund manager changed?
• Check: Has expense ratio increased?
• If yes → switch to better fund
Mistake 1: Blindly Trusting Past Returns:
• "This fund gave 30% last year" → doesn't mean you will get 30% in the future
• Check 5-10 year CAGR, not 1-year return
• Consistency > spike
Mistake 2: Too Many Funds:
• 10-15 mutual funds = over-diversified
• 3-5 funds enough (1 index, 1 large cap, 1 mid cap, 1 debt)
• More funds = more confusion, not more diversification
Mistake 3: Rushing to Stop the SIP:
• Market goes down → "Let's stop the SIP, and resume when the market improves"
• WRONG. Market down = best time for SIP (buying at discount)
• The biggest benefit of SIP = averaging when the market is down
Mistake 4: Ignoring the Expense Ratio:
• 2% expense ratio = ₹2L per ₹1Cr per year
• Index fund: 0.2% = ₹20K per ₹1Cr
• Difference: ₹1.8L/year — compounded over 20 years = MASSIVE
Mistake 5: Short-term Expectations:
• Expecting 20% from a mutual fund in 1-2 years = unrealistic
• Equity mutual fund: 10-12% CAGR over 5+ years
• Short-term (< 3 years): use debt funds, not equity
Equity Funds:
• Short-term (< 1 year): 20% on profit
• Long-term (> 1 year): 12.5% on profit above ₹1.25 lakh/year
Debt Funds:
• Short-term (< 3 years): As per income tax slab
• Long-term (> 3 years): 12.5% without indexation
ELSS (Tax Saving):
• 80C deduction: Up to ₹1.5 lakh invested
• 3-year lock-in (shortest among 80C options)
• After lock-in: free to withdraw
Equity funds: 10-12% CAGR historically (5+ year horizon). Index funds: ~11% (Nifty return). Debt funds: 6-8%. No guarantee though.
₹100/month. Most funds allow ₹500 minimum SIP. Some funds allow even ₹100.
Equity funds = market risk (can lose in short term). Debt funds = low risk. Long-term (5+ years) equity funds historically never lost money.
Nifty 50 Index Fund (UTI Nifty 50, HDFC Index Fund Nifty 50). Cheapest, simplest, market return.
The TRT blog has a mutual fund section — 15 terminology articles covering mutual funds basics, NAV, SIP, expense ratio, etc. theretailtrader.org/blog/BASIC%20TERMINOLOGIES
Learn more on TRT: theretailtrader.org/blog Free charting for mutual fund analysis: theretailtrader.org/charting Telegram: @theretailtrader_in
Educational only. Mutual fund investments subject to market risks. NOT investment advice.
This article is for educational purposes only — it contains no buy or sell recommendation, no claim of guaranteed returns, and no advisory. Rules, rates and mechanics are changed from time to time by the exchanges, SEBI and RBI, so verify every number yourself with your broker or an official source.