Investing index fund vs ETF passive investing

Index fund vs ETF in India

From WebNotes, a public knowledge base. Last updated . Reading time ~8 min.

Index funds and ETFs are both passive mutual fund products tracking benchmark indices but differ structurally in holding mode (folio vs demat), trading mechanics (NAV-based vs exchange-traded), TER, and operational considerations. For Indian retail investors, the choice between index funds and ETFs is one of the most common passive-investing decisions, with each option suited to different investor profiles.

This article covers the side-by-side comparison, the SIP suitability, the liquidity and cost differences, and the choice criteria for Indian retail investors deciding between index funds and ETFs.

Structural comparison

Side-by-side

DimensionIndex FundETF
StructureOpen-ended mutual fundExchange-traded fund
Holding modeFolio (or demat optional)Demat only
Demat account requiredNoYes
TradingAt NAV (end-of-day)Intraday on exchange
SettlementT+1 NAV-basedT+1 exchange-based
SpreadNone (NAV-based)Bid-ask spread
SIPStandard MF SIPLimited (exchange-trading required)
Minimum investmentRs 100-500 (per SIP)One unit minimum
TER0.10-0.50%0.05-0.30% (slightly lower)
Real-time priceNo (next-day NAV)Yes (intraday)

SIP suitability

Index fund SIP

Index funds support standard SIP setup:

  • Auto-debit via NACH E-Mandate.
  • Monthly/weekly/daily frequency.
  • Folio-mode automatic units allocation.
  • No exchange-trading required.

ETF SIP

ETF SIP is operationally more complex:

  • Requires demat account.
  • Exchange-trading per SIP date.
  • Brokerage charges per transaction.
  • Some platforms offer ETF SIP automation (Zerodha Coin, etc.).

For most retail SIP investors, index funds are more convenient than ETFs.

Costs

TER

ETFs typically have slightly lower TER:

  • Nifty 50 ETFs: 0.05-0.15%.
  • Nifty 50 Index Funds: 0.10-0.30%.

The TER differential favours ETFs for long-term cost-conscious investors.

Trading costs (ETF only)

ETFs incur additional costs:

  • Brokerage: 0.05-0.50% per transaction.
  • STT: 0.001% on equity ETF sell.
  • Stamp duty: 0.015% on buy.
  • Bid-ask spread: 1-25 bps depending on liquidity.

For frequent trading or small-amount investments, ETF trading costs can erode the TER advantage.

Liquidity

Index fund liquidity

Index funds settle at NAV with T+1 redemption:

  • Same-day NAV for orders placed before cut-off.
  • T+1 unit allocation.
  • T+2 redemption credit.

ETF liquidity

ETFs trade intraday with exchange-based liquidity:

  • Real-time price discovery.
  • Bid-ask spread depending on liquidity.
  • Less liquid ETFs may have wider spreads.

For investors prioritising intraday flexibility, ETFs are superior.

Choice criteria

Index fund preferred when

  • SIP-based investing: Standard MF SIP is the simplest setup.
  • Smaller investment amounts: Rs 100-1,000 fits standard MF minimums.
  • No demat account: Avoid demat-account requirement.
  • Long-term passive holding: Operational simplicity matters more than tiny TER differential.

ETF preferred when

  • Lump-sum deployment: Single transaction more cost-efficient.
  • Demat account already exists: For other holdings.
  • Lower TER priority: Slight cost advantage compounds.
  • Intraday flexibility: Tactical positioning.
  • Pledge for margin: Demat units required for margin pledge .

Tax treatment

Both index funds and ETFs follow the same tax framework:

Practical recommendation

For most retail investors:

  • Start with index funds: Lower friction, SIP-friendly, no demat requirement.
  • Add ETFs: Once you have a demat account and significant lump-sum capital.
  • Use both: Index funds for SIP, ETFs for lump-sum or tactical positioning.

See also

External references

References

  1. SEBI (Mutual Funds) Regulations 1996.
  2. AMFI scheme data on index funds and ETFs.
  3. Industry data on ETF and index-fund AUM trends.

Reviewed and published by

The WebNotes Editorial Team covers Indian capital markets, payments infrastructure and retail investor procedures. Every article is fact-checked against primary sources, principally SEBI circulars and master directions, NPCI specifications and the official support documentation published by the intermediary in question. Drafts go through a second-pair-of-eyes review and a separate compliance read before publication, and revisions are tracked against the SEBI and NPCI rule changes referenced in the methodology section.

Last reviewed
Conflicts of interest
WebNotes is independent. No relationship with any broker, registrar or bank named in this article.