Explainer

What is an ETF? Index funds, the CPSE ETF, and easy diversification

What if you could buy dozens of companies at once, in a single click, for a tiny fee? That is roughly what an ETF lets you do. ETFs have become one of the simplest ways for beginners to invest. Here is how they work, in plain words. This is for learning only and is not a recommendation of any fund.

What an ETF is

ETF stands for Exchange Traded Fund. Think of it as a basket of stocks that trades like a single share. Instead of buying one company, you buy one unit of the basket, and you instantly own a little bit of everything inside it.

Most ETFs simply copy an index — a ready-made list of stocks. A Nifty 50 ETF, for example, holds the 50 companies in the Nifty, in the same proportions. You get the whole market's move without picking individual stocks.

The CPSE ETF as an example

The CPSE ETF is a well-known Indian example. It holds shares of large government-owned companies (Central Public Sector Enterprises). Its biggest holdings in 2026 include NTPC, Bharat Electronics, Power Grid and ONGC. It is managed by Nippon India and trades on the exchange like any share, with no lock-in. It is a simple way to own a basket of big PSU stocks in one go — though, being focused on one group of companies, it is less spread out than a broad Nifty ETF.

Why beginners like ETFs

  • Instant diversification. One purchase spreads your money across many companies, which lowers the risk of any single one hurting you.
  • Very low cost. Because an ETF just copies an index, its fee is tiny. The CPSE ETF, for instance, charges about 0.08% a year — a fraction of what active funds charge.
  • Simple and transparent. You always know what it holds.
  • Easy to buy and sell. It trades like a normal share through your broker.

What to keep in mind

  • An ETF rises and falls with its index — it does not protect you from a market fall.
  • A focused ETF (like one on only PSU stocks) carries more concentrated risk than a broad-market ETF.
  • You still need patience; an ETF is a long-term tool, not a quick trade.

ETFs and index funds are a sensible, low-cost starting point, and they fit naturally with the idea of spreading your money that we cover in position sizing and diversification. For those who want an active, rule-based equity method instead, that is what our Model Portfolio offers. You can also start a free trial.

An ETF is simply a basket of stocks you can buy like one share — cheap, simple and spread out. For many beginners, that makes it one of the easiest ways to start.

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Educational content only, not investment advice or a recommendation to buy or sell any security. Views are the author’s. Investments in the securities market are subject to market risks; read all related documents carefully before investing. Past performance is not indicative of future results. Sanjeev Prakash · SEBI-Registered Research Analyst · Reg. No. INH000027423.

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Investments in the securities market are subject to market risks. Read all the related documents carefully before investing.