Index funds — the lazy but smart investment
Why do most actively managed funds underperform simple index funds? And how do you start with one?
Key takeaways
An index fund is a mutual fund that passively tracks a market index — it holds the same stocks in the same proportion as the index it follows. A Nifty 50 index fund holds all 50 Nifty stocks in proportion to their weight in the index. No research, no stock-picking decisions, no fund manager opinion — just the index.
Why most active funds fail to beat the index
Every year, SPIVA India reports how many actively managed large-cap funds beat their benchmark index. The numbers are sobering — over 10 years, roughly 70–80% of active large-cap funds underperform the Nifty 50. This happens because active funds charge higher fees, fund managers make wrong calls, and trading generates costs. In efficient markets like large-cap Indian equities, it is genuinely difficult for anyone to consistently find mispriced stocks.
The cost advantage is enormous
A Nifty 50 index fund charges 0.1–0.2% expense ratio. A typical active large-cap fund charges 1–1.5% in direct plan and 2–2.25% in regular. That difference of 1–2% per year compounds massively. Over 20 years, a 1.5% cost advantage means your index fund portfolio could be 30%+ larger than the active fund portfolio — assuming identical gross returns, which the active fund rarely achieves.
When active funds still make sense
Index funds are most powerful in the large-cap space where markets are efficient. In mid-cap and small-cap categories, markets are less researched, more mispriced, and skilled active managers can add significant value over an index. Many investors use a core-satellite approach: 60–70% in index funds for stability and low cost, 30–40% in carefully selected active mid/small-cap funds for higher growth potential.
How to start with an index fund
Choose a Nifty 50 or Nifty 500 index fund in direct plan from a low-cost AMC. UTI, HDFC, ICICI Prudential, and Nippon all offer good options. Start a monthly SIP of any amount. Ignore the NAV and daily news. Check your returns once a year. Do not stop during market crashes — those are your best buying opportunities. That is literally the entire strategy.