Own the business, or own the whole index. Both, in one account

Nobody knows what an index will return. Everybody knows what a fund charges. A difference of half a percent a year sounds trivial and is not: on a twenty-year holding it can take a double-digit share of the final value. Compare the expense ratio before anything else, because it is the one variable you control.

Tracking error measures how bumpily a fund follows its index. Tracking difference measures how far behind it ends up, which is what actually reaches you. A fund with a low expense ratio and a wide tracking difference is not cheap; it is merely charging you somewhere less visible.

An ETF trades on the exchange, so you pay whatever is on the screen, not the net asset value. In a thinly traded ETF the gap between buy and sell can be wider than a year of expense ratio. Look at the depth, use a limit order, and never buy an ETF in the first or last few minutes of the session.

Every ETF publishes an indicative net asset value through the session. If the screen price is well above it you are paying a premium, which is a cost you never get back. Most platforms show iNAV next to the price; if the gap is wide, wait rather than chase.

Twenty rupees on a ₹2,000 purchase is one percent before anything else; on a ₹50,000 purchase it is four hundredths of a percent. If you are investing small amounts, it is usually better to accumulate and buy less often, or to use a mutual fund where the rupee amount buys fractional units and no brokerage applies.

Selling from demat moves securities out of your account, and the depository charges for that movement per scrip per day, whether you sold one share or a thousand. Selling five different holdings on the same day costs five times as much as selling one. It is small, it is genuine, and it is the charge people forget.

A fund's expense ratio is not billed to you; it is deducted from the fund's own assets every day, so it never shows on a contract note. That is precisely why it deserves attention. It is the only cost you pay for every single day you hold, and the only one that is invisible.

The market's best days cluster close to its worst ones, which is exactly when a nervous investor is out. Missing a handful of the strongest sessions over a decade can halve the outcome. Staying invested through the ugly part is not a slogan; it is the whole mechanism.

Broad equity indices have repeatedly fallen thirty percent or more and recovered, and individual shares have fallen further and not recovered at all. Decide in advance how large a fall you can sit through, then size the position so that number is survivable.

Owning four shares is how fortunes are made and how they are lost, often in the same decade. If a single holding is large enough that its collapse would change your life, it is a bet rather than an investment. The remedy is not to stop; it is to size it honestly.

The index earns whatever it earns. The person holding it earns less, because money tends to arrive after a rally and leave after a fall. The gap between the two is called the behaviour gap, and closing it costs nothing except the discipline to do nothing.

Pick a month, look once a year, and bring the mix back to what you decided when you were calm. Rebalancing forces you to sell a little of what has run and buy a little of what has not, which is the opposite of what instinct suggests and usually the right thing.

Nomination is compulsory and takes a minute. Equally important and entirely voluntary: tell one person in your family that the account exists and how to reach it. Unclaimed securities sit with the depository for years because nobody knew to ask.

The depository emails you a statement of everything held across your demat accounts. Open it. It is the one document that catches a wrong credit, a forgotten holding, a stale bank mandate or an old account you meant to close.

Guaranteed returns, private groups, tips ahead of an announcement and calls offering to manage your account are frauds without exception. We will never ask for your password or an OTP, and no genuine adviser guarantees a return. Report anything that smells wrong on the SEBI SCORES portal.