Index Fund

By MoneyBees

A fund that mechanically tracks a market index (e.g. S&P 500, MSCI World). No active manager picking stocks. Fees are a fraction of a percent.

What an index fund is

An index fund mechanically tracks a market index (like the S&P 500, MSCI World, or Singapore's Straits Times Index) by holding all (or a representative sample) of the index's constituents in proportion.

Unlike actively-managed funds, there's no stock-picking and no human judgment about market timing. The fund's only job is to match the index, minus a small management fee.

Why index funds work

Cost: expense ratios of 0.03% to 0.20% versus 1% to 2% for actively managed funds. Over 30 years, the fee differential typically eats 25% to 40% of an active fund's gross returns.

Diversification: a single S&P 500 fund gives exposure to 500 of the world's largest companies. MSCI World gives 1,500+ across 23 developed countries.

Performance: SPIVA studies consistently show 70% to 90% of active funds underperform their benchmark index over 10 to 20 year horizons, especially after fees.

Index fund vs ETF

Both passively track an index. The main differences are pricing mechanism and trading.

Index fund: priced once daily at NAV, bought and sold via the fund provider. Common structure in retirement schemes and direct mutual-fund platforms.

ETF: trades intra-day on a stock exchange. Easier to buy via any brokerage account, and the in-kind creation/redemption mechanism makes ETFs slightly more tax-efficient (less relevant in Singapore where individuals pay no capital gains tax).

Singapore retail investors typically use ETFs for simplicity, accessing index strategies through SGX or via Irish-domiciled funds in London (IWDA, VWRA, CSPX).

How to choose an index fund

Identify the index: broad-market (S&P 500, FTSE Global All Cap), developed-only (MSCI World), or all-world (FTSE Global / MSCI ACWI).

Check expense ratio: under 0.20% is fine; under 0.10% is excellent.

Check fund domicile for tax: Irish-domiciled funds suffer 15% US dividend withholding tax; US-domiciled suffer 30%. For long-term holders this matters more than the headline expense ratio.

Check liquidity / fund size: stick to ETFs with over US$1 billion in AUM and daily volume above 100,000 shares.

Frequently asked questions

What is an index fund?

A fund that mechanically tracks a market index (like the S&P 500, MSCI World, or Singapore's Straits Times Index) by holding the constituents in proportion to the index. No active stock picking, no market timing. Just match the index minus a small management fee.

Are index funds the same as ETFs?

Most ETFs are index funds, but index funds existed in mutual-fund form first (Vanguard's 1976 launch). The difference is pricing: index funds price once daily at NAV; ETFs trade intra-day on exchanges. Most Singapore retail investors use the ETF form.

Why do index funds usually beat active funds?

Cost. Index funds charge 0.03% to 0.20% in fees; active funds charge 1% to 2%. Over 30 years, the fee differential compounds to lose active funds 25% to 40% of gross returns. The SPIVA scorecards consistently show 70% to 90% of active funds underperforming their benchmarks long-term.

Which index fund should a Singapore investor start with?

For broad equity exposure, Irish-domiciled VWRA (global all-cap) or CSPX (S&P 500) are popular choices: low TER (~0.07% to 0.22%), tax-efficient via Irish domicile. For SGD exposure, the STI ETF works but is concentrated in 3 banks. Most balanced portfolios combine global ETFs with SGD bond funds.

Related

Junxiong-WFG Organisation is an authorised representative of AIA Financial Advisers Private Limited (Reg. No. 201715016G).