Mutual fund knowledge center

A mutual fund pools money from many investors and invests it in a portfolio of securities - stocks, bonds, gold or a mix - run by a professional fund manager at an Asset Management Company (AMC).

You get units representing your share of the pool, and your money is spread across many holdings instantly. All Indian mutual funds are regulated by SEBI, which enforces disclosure and investor protection.

NAV is the per-unit value of a fund, calculated once every business day as: (total assets − expenses) ÷ number of units outstanding.

When you invest, your units = amount ÷ NAV. A key myth: a fund with a lower NAV is not "cheaper" or better - NAV only reflects accumulated growth, not value. What matters is the percentage return, not the NAV number.

AUM is the total market value of all the money a fund (or AMC) manages. It signals scale and investor trust.

Bigger isn't always better: a very large AUM can make it harder for a small-cap fund to enter/exit positions nimbly, while large-cap and index funds handle size easily. For debt and liquid funds, larger AUM often means better stability.

A fund manager is the professional (or team) at the AMC who decides what the fund buys and sells, within the limits of its mandate and SEBI category rules.

• Experience & tenure matter - a long track record across market cycles is more telling than one good year.
• Team vs star manager: team-driven processes reduce "key-person" risk if a star manager leaves.
• Check how the manager's other funds have behaved, and whether the strategy stayed consistent.

The expense ratio is the fund's annual running cost (management fee + operating costs) as a percentage of assets, deducted from returns daily - you never see a separate bill.

Lower is better, especially for index funds where costs directly eat into returns. Over decades, even a 1% difference compounds into a large gap. Direct plans have a lower expense ratio than Regular plans.

An exit load is a small fee (often around 1%) charged if you redeem before a set period - commonly within 1 year for equity funds. It discourages short-term churning and protects long-term holders.

Liquid and overnight funds usually have no exit load (or a tiny graded one for very early exits). Always check the load structure before investing.

A benchmark is the market index a fund measures itself against - for example a large-cap fund vs the Nifty 50. SEBI requires every scheme to declare one.

Beating the benchmark (after costs) = genuine outperformance; trailing it consistently means an index fund might serve you better. Always compare a fund to the right benchmark for its category.

Every scheme has two plans with the same portfolio and manager:

• Regular: bought through a distributor who earns a commission - baked into a higher expense ratio.
• Direct: bought straight from the AMC, no commission, lower expense ratio, higher long-run returns.

If you research yourself, Direct plans leave more money compounding for you.

A SIP invests a fixed amount at regular intervals (usually monthly) regardless of market level. It automates discipline and removes the temptation to time the market.

Because you buy more units when prices are low and fewer when high, your average cost smooths out over time - this is rupee-cost averaging.

SIP suits regular income and volatile or richly-valued markets - it spreads entry and reduces timing risk. Lumpsum can work better when you have a large sum and markets are reasonably valued, since money is invested (and compounding) sooner.

Many investors do both: a steady SIP, topped up with lumpsums during sharp corrections.

Compounding means your returns earn returns. Over long horizons most of your final wealth comes from compounding, not from the amount you invested.

That's why starting early matters more than the amount - a smaller SIP begun in your twenties can outgrow a larger one begun a decade later. A step-up SIP (raising the amount yearly) amplifies the effect.

ELSS (Equity-Linked Savings Scheme) is an equity fund that offers a tax deduction under Section 80C, with a 3-year lock-in - the shortest among 80C options. A lock-in means units can't be redeemed before that period.

Because it's equity, returns are market-linked, so treat ELSS as a long-term investment, not just a March tax rush.

Risk is the possibility your returns differ from what you expect - including losing money. The main types:

• Market risk - prices fall with the market (equity funds most exposed).
• Credit risk - a bond issuer defaults (debt funds).
• Liquidity risk - holdings are hard to sell (small-cap, low-rated debt).
• Concentration risk - too much in a few stocks or one sector.

A long horizon and diversification are the simplest defences.

Risk ratios put a number on how a fund behaves. The ones you'll see most:

• Standard deviation - how much returns swing around their average. Higher = more volatile.
• Beta - sensitivity to the market. Beta 1 moves with the market; >1 is more aggressive, <1 more defensive.
• Alpha - the excess return a fund delivered over what its risk (beta) would predict. Positive alpha = manager added value.
• Sharpe ratio - return earned per unit of total risk. Higher is better risk-adjusted performance.
• Sortino ratio - like Sharpe but only penalises downside volatility, which is what investors actually fear.

Use them to compare funds within the same category - never in isolation.

The Riskometer is a mandatory SEBI dial on every scheme document that rates risk on six levels: Low, Low to Moderate, Moderate, Moderately High, High, and Very High.

It's reviewed regularly and updated as the portfolio changes. Match the scheme's risk level to your own comfort and time horizon before investing.

Concentration is how much sits in the fund's largest positions - the top-10 weight. High concentration means stronger conviction but more single-stock risk.

Active share measures how different the portfolio is from its benchmark (0% = identical to the index, 100% = totally different). A low active share on an "active" fund charging high fees may signal closet indexing - you're paying active fees for near-index returns. Gajamudra surfaces both on every fund page.

Past returns don't repeat - how a fund is built tells you more. Look at:

• Number of holdings & top-10 weight - diversification vs concentration.
• Market-cap mix - large/mid/small split drives risk and return potential.
• Sector exposure - a heavy single-sector tilt raises sector-specific risk.
• Active share & expense ratio - are you getting genuine, cost-effective active management?

Overlap is the proportion of holdings two funds share. Owning several funds that all hold the same large-caps is not diversification - it's duplication with extra fees.

Before adding a fund, check its overlap with what you already own. Low overlap across complementary categories gives true diversification. Run it free in Analytics.

Asset allocation - your split across equity, debt and gold - drives most of your long-run outcome. Decide it first, based on goals and risk appetite.

Diversify, don't duplicate: spread across categories and styles rather than owning five similar funds. A core-and-satellite approach (stable index/large-cap core + smaller mid/small/thematic satellites) is a common framework.

Rebalancing means periodically restoring your portfolio to its target allocation. If equities surge and become overweight, you trim them back to plan - which mechanically enforces "buy low, sell high" and controls risk.

Once or twice a year, or when an allocation drifts beyond a set band, is usually enough.

Tax depends on the fund type and holding period:

• Equity funds: held ≤12 months → short-term gains; held >12 months → long-term, with an annual tax-free threshold. Rates are set by current law.
• Debt funds: gains are added to your income and taxed at your slab rate (treatment changed in recent budgets).

Tax rules change often and depend on your situation - verify current rates and consult a tax professional.

A capital gain is the profit when you redeem units for more than you paid. The holding period decides whether it's taxed as short-term or long-term, and equity vs debt funds have different thresholds and rates.

Tax is triggered only on redemption, not while you stay invested - another reason long-term holding is tax-efficient.