The Power of Compounding vs the Cost of Trading

My grandfather planted a mango tree behind the house the year my father was born. He did almost nothing to it. Some water in summer, a little manure once a year, and otherwise he left it alone. By the time I was old enough to climb it, it was taller than the house and dropped more mangoes than we could eat or give away.

A neighbour planted one the same season. But he was an anxious man. Every few weeks he'd dig his sapling up to check whether the roots had taken. They never quite did — because every time he checked, he tore them. His tree stayed a stick for years. Same soil, same rain, same seed. The only difference was activity.

That, almost exactly, is the difference between an investor and a trader.

Compounding is just a tree growing while you sleep

Compounding sounds like a finance word. It isn't. It's the mango tree. A good business earns a profit, ploughs most of it back into itself, earns a slightly bigger profit next year on a slightly bigger base, ploughs that back too — and the gains start stacking on the gains. The longer you leave it undug, the more violently the later years pay.

You already own a piece of one such tree if you've ever opened a tube of Fevicol. Pidilite Industries — the company behind Fevicol, Fevikwik and M-Seal — is about as boring and as steady as Indian business gets. Here is what it did while its owners did nothing (Inve data, 2026):

Profit in FY23 was ₹1,290 crore. By FY26 it was ₹2,471 crore. Read those two numbers a beat apart and feel the gap: the company's annual earnings nearly doubled in three years. Earnings per share rose right alongside, from ₹12.52 to ₹24.06 (Inve data, 2026). An owner who bought in FY23 and then forgot the password to their demat account would have watched their slice of the profit almost double — for the work of doing nothing at all.

That is the whole magic. Not a trick, not a tip. A decent business, left undisturbed, growing while you sleep. One honest caveat, though: doing nothing only compounds wealth when the tree underneath is actually sound. A weak business left alone doesn't grow — it rots quietly. Picking a genuinely durable business in the first place is the judgment-heavy part; the patience comes after, and it only pays off if that first choice was right.

The word that does the work in that line is unnecessarily. Most interruptions are.

The silent tax: every time you dig, you tear a root

Here's the part nobody puts on a brochure. Activity isn't free. Every time you buy and sell, you pay — and those payments are a tax that compounds against you just as quietly as the business compounds for you.

Four shovels do the digging:

• Brokerage and exchange fees on every trade.
• Bid-ask spreads — the small gap between buy and sell price you eat each round trip.
• Short-term capital gains tax — sell within a year and the taxman takes a far bigger bite than if you'd held on.
• The worst one: being wrong. More trades mean more decisions, and more chances for a bad one.

None of these feels like much on a single trade. That's exactly why it's a silent tax — it never sends you a bill. It just shaves a little off the top, over and over, until the roots can't take.

And we have a national-scale measurement of what that shaving adds up to.

What the digging cost a whole country

India ran the experiment for us, on a scale no lab ever could. Tens of crores of new investors arrived in five years. A large share went straight to the fastest, most active corner of the market — futures and options — and SEBI, the market regulator, counted the bodies.

Between FY22 and FY24, around 1.13 crore individuals traded F&O, and 93% of them lost money — ₹1.81 lakh crore in aggregate, roughly ₹2 lakh each on average among the losers (SEBI, September 2024). Ninety-three out of every hundred. Not the unlucky tail — the overwhelming, ordinary middle.

Now the silent tax, made visible. Over those same three years, those traders paid roughly ₹50,000 crore in transaction costs alone — about half of it brokerage, the rest exchange and other fees (Business Today, citing the SEBI study, September 2024). Fifty thousand crore, handed over for the privilege of digging up the sapling. That is money gone before a single trade is judged right or wrong — the cost of the shovel, paid up front, every time.

Put the two pictures side by side. One company quietly doubled its profit in three years while its owners did nothing. Out of 1.13 crore traders, frantically busy, 93% lost — ₹1.81 lakh crore between them — and they paid ₹50,000 crore for the chance to. Same market. Same years. The difference was activity.

Why doing nothing is the hardest skill

If compounding is so simple, why doesn't everyone just plant the tree and walk away?

Because doing nothing feels like doing nothing. It feels lazy, passive, even irresponsible — especially when the price is falling and every instinct screams do something. The anxious neighbour wasn't stupid. He was caring. He dug because he wanted the tree to live. His care is what killed it.

The market is built to feed that anxiety. A green-and-red screen that updates every second is an invitation to act, and acting is exactly what the people who earn the fees want from you. Don't ask the barber whether you need a haircut, and don't ask the brokerage whether you should trade today. Buffett has long argued the unfashionable opposite of all that activity — that for an investor, inactivity is intelligent behaviour. The discipline isn't to trade well. It's to mostly not trade at all.

What "doing nothing" actually requires is the one thing it looks like it doesn't: paying attention. You leave the tree alone because you've checked, calmly and rarely, that it's still healthy — that the business still sells more each year, still turns profit into cash, still does roughly what management said it would. You're not ignoring it. You're just refusing to dig it up to find out.

That checking — quietly, once a quarter, across every business you own — is the genuinely hard part of being a patient owner, and it's the job Promise Tracker was built to do: surface what each management guided and whether they delivered, so you can sit still on good evidence rather than nerves.

So what does an owner actually do?

Not nothing, exactly. The right amount of nothing.

You buy a business you understand at a fair price. You check on it the way you'd check a fruit tree — rarely, calmly, looking for real damage, not for an excuse to act. You let the profit reinvest and the years stack. And you sell only when the business genuinely deteriorates or the price gets absurd — not because a chart twitched on a Tuesday.

This isn't a call to buy Pidilite, or to never sell anything. Pidilite is here as an example of what steady compounding looks like, not a recommendation — its own management has missed some of what it guided, and no business compounds in a straight line forever. The point is the principle underneath it: the business does the growing; your job is mostly to stay out of the way.

My grandfather's tree is still standing. It has outlived him, and it still drops more mangoes than the family can eat. He didn't have a green thumb. He had the patience to let the roots take. Ask yourself the only question that matters here: when the screen turns red and your hand reaches for the shovel — is the tree actually sick, or are you just anxious?

Frequently asked questions