Mutual funds and personal investing

Commerce (General / Accounting and Finance / Banking and Insurance) (B.Com) · Finance and banking · free study notes for exams, placements and interviews

In short

A mutual fund is a trust that pools money from many investors, invests it in a stated portfolio of securities and passes the gains and losses back to unit holders in proportion to the units they hold, net of expenses. In India they are governed by the SEBI (Mutual Funds) Regulations, 1996, run on a three-tier sponsor-trustee-AMC structure, and are the main route through which Indian households convert savings into market assets - industry assets under management have crossed ₹70 lakh crore, with monthly SIP inflows above ₹25,000 crore. The topic carries marks in B.Com papers on financial services and investment management, is compulsory reading for NISM VA, CFP and JAIIB-type certifications, and dominates interviews at AMCs, wealth and private-banking desks, RTAs, fintech platforms and bank branch sales roles. It is also the one finance topic a graduate applies to their own money, so interviewers test both the mechanics (NAV, TER, taxation) and the judgement (asset allocation, goal matching, risk).

Explained

Structure, regulation and the players

Sponsor: promotes the fund, must contribute at least 40% of the AMC's net worth and meet a sound-track-record test; it appoints the trustees with SEBI approval.
Trustee company / board of trustees: legal owner of the scheme assets, holds them in trust for unit holders; at least two-thirds of trustees must be independent.
Asset Management Company (AMC): manages the schemes for a fee, must maintain a net worth of at least ₹50 crore; employs fund managers, dealers, research and risk teams.
Custodian: SEBI-registered, holds securities in safekeeping, independent of the sponsor. Registrar and Transfer Agent (RTA): CAMS, KFin Technologies - processes purchases, redemptions, unit records and statements.
AMFI: industry body; registers distributors (ARN) and publishes daily NAVs, category definitions and stock market-cap lists. Investment advisers are registered separately under SEBI (Investment Advisers) Regulations, 2013 and charge the client a fee, unlike commission-earning distributors.
Disclosure documents: Scheme Information Document (SID), Statement of Additional Information (SAI) and Key Information Memorandum (KIM); monthly portfolio and riskometer disclosure (six levels, Low to Very High); half-yearly financials.

Types of schemes

By structure: open-ended (buy/sell any business day at NAV), close-ended (fixed maturity, listed on exchange, traded often at a discount), interval (opens in specified transaction periods).
By management style: active (manager picks securities, aims to beat the benchmark) versus passive - index funds and ETFs that replicate an index at very low cost; ETFs trade on the exchange and need a demat account, index funds do not.
SEBI categorisation (October 2017) fixed five groups and standard definitions so that like is compared with like; an AMC may run only one scheme per category (index funds, ETFs, fund of funds and sector/thematic funds are exempt):
- Equity (11 categories): large cap (≥80% in top 100 stocks by market cap), mid cap (≥65% in stocks ranked 101-250), small cap (≥65% in 251 onwards), large & mid cap, multi cap (≥25% each in large, mid, small), flexi cap (≥65% equity, no cap restriction), value/contra, focused (max 30 stocks), dividend yield, sectoral/thematic, ELSS.
- Debt (16 categories): overnight, liquid (≤91 days), ultra short, low, money market, short, medium, medium-to-long, long duration, dynamic bond, corporate bond (≥80% in AA+ and above), credit risk (≥65% in AA and below), banking & PSU, gilt, gilt with 10-year constant duration, floater.
- Hybrid (6): conservative (10-25% equity), balanced, aggressive (65-80% equity), dynamic asset allocation / balanced advantage, multi asset (≥3 asset classes, ≥10% each), arbitrage, equity savings.
- Solution-oriented: retirement and children's funds, five-year or goal lock-in. Other: index funds/ETFs and fund of funds.
Options within a scheme: Growth (gains stay in NAV, compound) versus IDCW - income distribution cum capital withdrawal, where payout reduces NAV and is taxed at the investor's slab. Direct plan (bought from the AMC, no distributor commission) versus Regular plan - same portfolio, lower TER and higher NAV in direct.

How NAV, loads and costs work

NAV = (market value of investments + receivables + cash − liabilities − accrued expenses) ÷ units outstanding, declared to four decimals every business day (liquid/debt also on non-business days as required).
Cut-off timing: 3:00 p.m. for most schemes (1:30 p.m. for purchase in liquid and overnight funds). Since February 2021 units are allotted at the NAV of the day the funds are actually available for utilisation by the AMC, regardless of the amount.
Entry load is banned in India (since August 2009). Exit load may be charged on redemption within a stated period and is credited back to the scheme.
Total Expense Ratio (TER) covers management fee, trustee fee, RTA, audit, custody, marketing and distributor commission. It is charged daily on net assets, so the NAV published is always post-expense. SEBI caps it on a slab that falls as AUM rises - broadly up to about 2.25% for equity schemes on the first ₹500 crore down to about 1.05% for very large schemes, with debt schemes 0.25 percentage point lower and index funds/ETFs capped near 1%; an extra allowance applies for inflows from beyond the top 30 cities. Treat the exact slab numbers as rule-dependent - they are revised by SEBI circular.
Other transaction costs: brokerage and STT inside the portfolio, and 0.005% stamp duty on every purchase/switch-in of units.

Investing mechanics: SIP, STP, SWP and lock-ins

SIP (systematic investment plan): a fixed amount on a fixed date; gives rupee cost averaging (more units when NAV is low) and removes the need to time the market. Average cost per unit is the harmonic mean of NAVs and is always ≤ the arithmetic average NAV.
STP: transfers a fixed sum periodically from one scheme to another (commonly liquid → equity) - each transfer is a redemption and is taxable. SWP: withdraws a fixed sum periodically, used for retirement income; only the gain portion is taxed, which makes it more tax-efficient than IDCW.
Lock-ins: ELSS 3 years (shortest among 80C options), solution-oriented schemes 5 years or till retirement/majority; PPF 15 years; NPS till 60; tax-saving bank FD 5 years.
Compliance for the investor: PAN, KYC (now validated/registered status with the KRA), nomination or explicit opt-out, bank mandate for redemption proceeds; MF Central and the Consolidated Account Statement give a single view.

Risk, return and how funds are compared

Risks: market risk (equity), interest rate risk (measured by modified or Macaulay duration - bond prices fall when yields rise), credit/default risk, liquidity risk, concentration risk, currency risk in international funds, and tracking error in passives.
Debt schemes must publish a Potential Risk Class (PRC) matrix (credit risk A/B/C × interest rate risk I/II/III). Segregated portfolios ("side-pocketing") ring-fence a defaulted security; swing pricing and mandatory stress-test disclosures (small- and mid-cap funds, from 2024) address redemption pressure.
Return measures: absolute return for under a year; CAGR for a single lump sum; XIRR for multiple cash flows such as SIPs; rolling returns to judge consistency; always compare with the scheme's own total return index benchmark and the category average.
Risk-adjusted measures: standard deviation (total volatility), beta (sensitivity to the market), Sharpe and Sortino ratios, Treynor ratio, Jensen's alpha (value added over CAPM), R-squared (fit with benchmark), tracking error and information ratio.
Mutual funds do not guarantee returns; past performance is not indicative, and "assured return" language is prohibited.

Personal investing: putting it together

Order of priority: emergency fund of 3-6 months' expenses (savings account, liquid or overnight fund) → term life insurance and family health cover → clear high-cost debt (credit card, personal loan) → then goal-based investing.
Goal-based mapping: money needed within 1-3 years goes to debt/arbitrage; 3-5 years to hybrid; beyond 7 years to equity, because equity's short-term volatility averages out over long holding periods.
Asset allocation drives most of the outcome: split across equity, debt, gold and real assets by goal horizon and risk profile, then rebalance to the target weights annually. A crude thumb rule is equity % ≈ 100 − age, to be adjusted for income stability and dependants.
Other Indian instruments to compare: EPF and VPF, PPF (tax-free, EEE, rate notified quarterly), NSC, SCSS, Sukanya Samriddhi, Post Office schemes, NPS (extra ₹50,000 deduction under 80CCD(1B) in the old regime), bank FD/RD, corporate FD, direct equity, Sovereign Gold Bonds (no fresh tranches have been issued since February 2024), gold ETFs, REITs and InvITs.
Taxation of mutual funds (position after the Finance (No. 2) Act, 2024 - verify against the current Finance Act, as these change often):
- Equity-oriented (≥65% in domestic listed equity): STCG (≤12 months) at 20%; LTCG (>12 months) at 12.5% with ₹1.25 lakh of long-term gains exempt per year.
- Specified mutual funds - those with more than 65% in debt and money market instruments: gains are always short-term and taxed at the slab rate, with no indexation, for units bought on or after 1 April 2023.
- Other funds (gold, international, many FoFs): 12.5% if held more than 24 months, slab rate otherwise.
- IDCW is taxed at slab rate in the investor's hands, with TDS at 10% above ₹10,000 in a year (threshold raised recently - check current law). Health and education cess of 4% applies on the tax. ELSS gives an 80C deduction up to ₹1.5 lakh under the old regime only.
Advantages: professional management, diversification at small ticket size (SIPs from ₹100-500), liquidity, strict SEBI disclosure, low cost in passives, choice of risk levels. Limitations: no capital protection, TER and exit load drag, no control over individual holdings, cash-drag and style drift in active funds, too much choice and churn-driven mis-selling, and poor investor behaviour (stopping SIPs in a fall) destroying the fund's own returns.

Key points

Mutual fund - a SEBI-registered trust that pools investor money into a stated portfolio; unit holders bear all gains and losses.
Three-tier structure - sponsor (≥40% of AMC net worth), trustees (legal owners, two-thirds independent), AMC (manager, ≥₹50 crore net worth), plus custodian and RTA.
NAV - net assets ÷ units outstanding, declared daily to four decimals; a low NAV is neither cheap nor better.
TER - all costs charged daily on net assets, capped on a SEBI slab; reported returns are already net of TER but not of exit load or tax.
Direct vs regular - identical portfolio; direct saves distribution commission, so its NAV grows faster, typically by 0.5-1% a year.
Growth vs IDCW - IDCW is a payout out of your own NAV, taxed at slab; growth compounds and defers tax.
SEBI categorisation (2017) - five groups and fixed definitions; one scheme per category per AMC; large/mid/small caps defined by AMFI market-cap ranks 1-100, 101-250, 251 onwards.
ELSS - equity scheme with the shortest 80C lock-in, 3 years, available only under the old tax regime.
ETF vs index fund - both passive; ETF trades on the exchange at market price (needs demat), index fund transacts at NAV.
SIP and rupee cost averaging - fixed rupee amounts buy more units at lower NAVs, so average cost ≤ average NAV.
CAGR for lump sum, XIRR for staggered flows - using CAGR on SIPs overstates or understates the true return.
Sharpe ratio - excess return per unit of total risk; Treynor uses beta; alpha is return over CAPM expectation.
Duration - sensitivity of a debt portfolio to interest rates; longer duration funds gain most when rates fall and lose most when they rise.
Liquid and overnight funds - lowest-risk parking for emergency money; liquid funds hold paper maturing within 91 days.
Taxation now - equity STCG 20%, LTCG 12.5% above ₹1.25 lakh; debt-heavy ("specified") funds at slab with no indexation.
Asset allocation and rebalancing - the main controllable driver of long-term outcome, not scheme selection.
Real return - what matters; a 7.5% FD after 30% tax and 5.5% inflation gives a slightly negative real return.
Risk sequence in personal finance - emergency fund → insurance → costly debt → goal-linked investing.

Formulas and examples

NAV = (Market value of investments + Receivables + Other assets − Liabilities − Accrued expenses) ÷ Number of units outstanding (₹ per unit)
Absolute return = (V₁ − V₀)/V₀ × 100 ; V₀, V₁ = beginning and ending values (₹)
CAGR = (V₁/V₀)^1/n − 1 ; n = years
XIRR: solve Σ Cᵗ/(1+r)^tᵗ/365 = 0 for r ; Cᵗ = cash flow (outflows negative), tᵗ = days from the first flow
SIP future value FV = P × [((1+i)ⁿ − 1)/i] × (1+i) ; P = monthly instalment (₹), i = monthly rate = annual/12, n = number of instalments (end-of-period form omits the final (1+i))
Average cost per unit (SIP) = Total invested ÷ Total units = harmonic mean of NAVs
Portfolio return Rp = Σ wᵢRᵢ ; wᵢ = weight of asset i, Σwᵢ = 1
Sharpe = (Rp − Rf)/σp ; Treynor = (Rp − Rf)/βp ; Jensen's alpha = Rp − [Rf + βp(Rm − Rf)]
Beta βp = Cov(Rp, Rm)/Var(Rm) ; Tracking error = standard deviation of (Rp − Rm)
Real (inflation-adjusted) return = [(1 + nominal)/(1 + inflation)] − 1 (Fisher relation)
Post-tax return = nominal × (1 − marginal tax rate), for interest taxed at slab
Redemption proceeds = Units × NAV × (1 − exit load rate) ; Rule of 72: years to double ≈ 72 ÷ annual % return

Example 1 - NAV and exit load. A scheme holds equities worth ₹480 crore, debt ₹60 crore, cash and TREPS ₹12 crore and receivables ₹3 crore; payables are ₹4 crore and accrued expenses ₹1 crore. Units outstanding: 50 crore.

Net assets = (480 + 60 + 12 + 3) − (4 + 1) = 555 − 5 = ₹550 crore.
NAV = 550/50 = ₹11.0000 per unit.
An investor redeeming 5,000 units within the 1% exit load period gets 5,000 × 11 = ₹55,000 less ₹550 = ₹54,450.

Example 2 - CAGR. ₹1,00,000 grows to ₹2,48,832 in 5 years.

CAGR = (248832/100000)^1/5 − 1 = (2.48832)^0.2 − 1 = 1.20 − 1 = 20% p.a.
Rule of 72 check: 72/20 ≈ 3.6 years to double - the money more than doubled in 5 years, consistent.

Example 3 - SIP accumulation. ₹5,000 a month for 10 years, expected 12% p.a. (i = 1% a month, n = 120).

(1.01)¹²⁰ = 3.3004 → [(3.3004 − 1)/0.01] = 230.04.
FV = 5,000 × 230.04 × 1.01 ≈ ₹11,61,700, against ₹6,00,000 invested - a gain of about ₹5.62 lakh.
Same instalment for 20 years (n = 240, (1.01)²⁴⁰ = 10.8926) → FV = 5,000 × 989.26 × 1.01 ≈ ₹49.95 lakh on ₹12 lakh invested: doubling the time multiplied the corpus more than four times.

Example 4 - cost of a 1% higher expense ratio (direct vs regular). ₹10,00,000 invested for 15 years, gross return 12%.

Plan	TER	Net return	Value after 15 years
Regular	1.8%	10.2%	₹42.93 lakh
Direct	0.8%	11.2%	₹49.16 lakh

Difference ≈ ₹6.23 lakh, i.e. about 62% of the original investment lost to a 1-percentage-point cost gap.

Example 5 - rupee cost averaging. ₹6,000 invested monthly for four months.

Month	NAV (₹)	Units bought
1	50	120.00
2	40	150.00
3	30	200.00
4	60	100.00

Total invested ₹24,000; total units 570.
Average cost = 24,000/570 = ₹42.11, against a simple average NAV of (50+40+30+60)/4 = ₹45.00.
Value at the month-4 NAV = 570 × 60 = ₹34,200, a gain of 42.5% on ₹24,000.

Example 6 - risk-adjusted comparison. Fund return 15%, benchmark 12.5%, risk-free 6.5%, fund SD 18%, beta 0.90.

Sharpe = (15 − 6.5)/18 = 0.47. Treynor = (15 − 6.5)/0.90 = 9.44%.
CAPM expectation = 6.5 + 0.90 × (12.5 − 6.5) = 11.9% → Jensen's alpha = 15 − 11.9 = +3.1%, so the manager added value even after adjusting for lower-than-market risk.

Example 7 - tax on redemption and real return. Equity fund units bought for ₹5,00,000 sold after 3 years for ₹9,00,000; no other capital gains in the year.

LTCG = ₹4,00,000; exempt ₹1,25,000 → taxable ₹2,75,000 at 12.5% = ₹34,375, plus 4% cess = ₹35,750.
Compare a bank FD at 7.5% for an investor in the 30% slab with inflation at 5.5%: post-tax return = 7.5 × 0.70 = 5.25% → real return = (1.0525/1.055) − 1 = −0.24%, a small loss of purchasing power.

Where it is used

Asset management companies (SBI MF, HDFC MF, ICICI Prudential, Nippon India, Axis, UTI): roles in fund accounting and NAV computation, dealing, equity/credit research, product and compliance.
Wealth management, private banking and bank branches: HDFC, ICICI, Kotak, Axis and NBFC distributors sell schemes under ARN; relationship managers build goal-based allocations and are tested on suitability and taxation.
RTAs and fintech platforms: CAMS, KFin, Groww, Zerodha Coin, Paytm Money, MF Central - operations, reconciliation, KYC and product roles built directly on this subject.
Retirement and institutional money: EPFO's ETF allocation to Nifty and Sensex index funds, NPS pension fund managers, and corporate treasuries parking surpluses in liquid and arbitrage funds.
Certifications and compliance jobs: NISM Series VA (mutual fund distributors), NISM XA/XB (investment advisers), CFP; audits of TER, portfolio limits and PRC matrices.
Personal practice: building an emergency fund, an ELSS or PPF choice for 80C, a long-horizon SIP into an index or flexi-cap fund, and an SWP for a parent's retirement income.

Interview questions

Q: A fund with NAV ₹12 and another with NAV ₹250 both hold the same portfolio - which is better? A: Neither; NAV only reflects when the scheme started and how it has grown. Returns depend on the portfolio and the expense ratio, not the NAV level.
Q: Why is the NAV of a direct plan higher than that of the regular plan of the same scheme? A: The direct plan carries no distributor commission, so its TER is lower and the same portfolio return compounds on a lower cost base.
Q: Is IDCW income "extra" return? A: No. The payout comes out of the scheme's own NAV, which falls by that amount, and it is taxed at the investor's slab rate - so it is a taxed withdrawal of your own money.
Q: When should XIRR be used instead of CAGR? A: Whenever there are multiple cash flows on different dates, such as a SIP, STP or partial withdrawals; CAGR is valid only for a single investment and a single redemption.
Q: What happens to a debt fund's NAV if the RBI raises the repo rate? A: Bond prices fall, so the NAV falls, and the longer the portfolio's duration the larger the fall; the scheme's yield-to-maturity then improves for new money.
Q: How is an equity-oriented fund defined for tax purposes, and how are gains taxed today? A: At least 65% in domestic listed equity; STCG up to 12 months at 20% and LTCG beyond 12 months at 12.5% with ₹1.25 lakh of gains exempt a year. Rates were changed in July 2024, so always confirm against the current Finance Act.
Q: Why did the tax treatment of debt mutual funds lose its edge over fixed deposits? A: For units bought on or after 1 April 2023, gains on debt-heavy "specified mutual funds" are taxed at the slab rate with no indexation and no long-term benefit, leaving only deferral and liquidity advantages.
Q: Which single decision explains most of a portfolio's long-run outcome? A: Asset allocation between equity, debt and gold, combined with disciplined rebalancing - not the choice of a particular scheme.
Q: A client wants 15% returns with no risk of loss for money needed in 18 months. What do you recommend? A: Explain that the pair is impossible; for an 18-month horizon suggest a liquid, ultra-short or arbitrage fund and set the expectation near prevailing short-term yields.
Q: What are segregated portfolios and why were they introduced? A: Side-pocketing separates a defaulted or downgraded security into a separate portfolio so that investors who redeem cannot escape the loss and remaining investors keep their claim on later recovery; it followed the IL&FS and DHFL defaults.
Q: Why do many active large-cap funds fail to beat their index? A: The large-cap universe is well researched and the 1-2% TER plus trading cost is a fixed handicap; most managers do not generate enough gross alpha in that segment to cover it, which is why index funds and ETFs have gained share.
Q: Does an SIP protect against loss? A: No - it averages the purchase cost and removes timing risk, but the portfolio still carries full market risk; an SIP in a falling market shows losses until the market recovers.

Common mistakes

Treating a low NAV as "cheap" and believing more units mean better returns.
Using CAGR on SIP cash flows, or annualising a return for a holding period of less than a year.
Forgetting to subtract liabilities and accrued expenses in NAV sums, or dividing by units issued instead of units outstanding.
Ignoring the exit load, the 0.005% stamp duty and tax when comparing a fund's "return" with an FD's interest rate.
Comparing nominal returns across instruments without adjusting for tax and inflation, and so concluding an FD beats a debt fund.
Mixing up the monthly and annual rate in the SIP formula (using 12% instead of 1% for i), or dropping the (1+i) factor for beginning-of-month instalments.
Confusing standard deviation with beta, or quoting alpha without saying which benchmark and risk-free rate it was measured against.
Calling a mutual fund "safe" or "guaranteed", and claiming past performance will repeat - both are prohibited in Indian selling practice.