India trades more equity derivatives than almost anywhere in the world, and a large share of that volume comes from individual traders. This lesson explains what these instruments are and why they exist — and then reports what actually happens to the people using them, because that part is documented rather than debatable.
What a derivative is
A derivative is a contract whose value comes from something else — here, a stock or an index. You are not buying the asset; you are entering an agreement about its future price.
A farmer expects a harvest in four months and fears prices will fall. A pickle factory needs mangoes then and fears prices will rise. They agree today on a price for delivery in four months. Both have removed uncertainty — the farmer is protected against a crash, the factory against a spike. Neither is gambling; both are removing risk they did not want.
That contract is a future, and this is what derivatives were invented for. The problem is that a third party can take the same contract without owning any mangoes or needing any — purely to bet on the price. That is legal and adds useful liquidity, but it is a completely different activity from what the farmer and the factory are doing.
Futures
- An obligation to buy or sell at a set price on a set date. Not a choice.
- Traded in fixed lot sizes set by the exchange — you cannot buy one NIFTY future.
- You post margin, not the full value. This is where leverage comes from.
- Profits and losses are settled daily against your margin. A move against you triggers a margin call.
- Losses are theoretically unlimited, because there is no floor on how far a price can move against you before expiry.
Options
| Call option | Put option | |
|---|---|---|
| Gives you | The right to buy at a set price | The right to sell at a set price |
| You buy one when | You expect the price to rise | You expect the price to fall, or you want to protect a holding |
| You pay | A premium, up front. That is your maximum loss. | The same |
| Maximum gain | Theoretically unlimited | Large but capped — the price cannot go below zero |
| Expires | On a fixed date. Worthless if it has not moved your way. | The same |
How leverage actually behaves
This is the number that matters and it is rarely stated plainly. If a contract worth ₹10 lakh requires ₹1 lakh of margin, you have 10× leverage. A 5% move in your favour is a 50% gain on your capital. A 5% move against you is a 50% loss.
What the data actually says
The mechanism is worth being explicit about. Derivatives carry higher transaction costs per rupee of exposure than delivery equity. Leverage amplifies whatever your expectancy already is. Frequency multiplies it further. If your edge is zero — which it is, until proven otherwise with a tested system — then costs alone guarantee a steady loss, and leverage simply determines how fast.
The legitimate uses
- Hedging. You hold a large portfolio and buy index puts before an event you cannot control.
- Covered calls against shares you already own and would be content to sell at that price.
- Genuine arbitrage, if you have the infrastructure for it.
- Getting exposure with less capital, within a fully tested system that accounts for the leverage.
- Buying weekly index options because they are cheap and the payoff sounds large.
- Trading on tips, on leverage, with no defined stop.
- Selling options for "monthly income" without modelling the tail loss.
- Trying to recover cash-market losses faster.
Check your understanding before moving on
3 questions. Answers are revealed once you submit all of them.
1.You buy a call option for a ₹4,000 premium. The stock moves the wrong way and the option expires worthless. What have you lost?
2.A futures contract worth ₹8 lakh requires ₹80,000 margin. The underlying falls 6%. What happens to your capital?
3.Why does frequent derivatives trading tend to produce losses even for people who are right slightly more than half the time?
Aapne shaadi ke liye halwai ko ₹5,000 advance de diya, rate aaj hi fix — chahe pyaaz mehnga ho ya sasta. Yeh future hai. Ab agar aap kehte ho "₹5,000 do, agar mera mann kare toh order karunga, warna paisa gaya" — woh option hai. Dono mein date fix hai, aur date nikal gayi toh baat khatam.
- Derivatives exist to transfer risk; using them to take risk is a different activity entirely.
- Futures are an obligation with theoretically unlimited loss. Buying options caps loss at the premium.
- Option sellers collect a small premium and take on large, sometimes unlimited risk.
- Leverage multiplies consequences, not odds — and lets you be right and still be wiped out.
- SEBI’s own studies find most individual F&O traders lose money, with losses rising with activity.
Mark it done to track your progress through the curriculum.
Common questions
Short, direct answers to what people ask about this topic.
- difference between futures and options in simple terms
- A future is an obligation — both sides must transact at the agreed price on the agreed date, whatever has happened in between. An option is a right without an obligation: the buyer pays a premium up front and can simply let the contract lapse if the price never moves their way. That difference sets the risk profile, because a futures position can lose far more than the margin posted while an option buyer cannot lose more than the premium paid.
- a contract giving the right but not the obligation to buy at a fixed price is called a
- A call option. The mirror instrument, giving the right to sell at a fixed price, is a put option. In both cases the buyer pays a premium for that right, and the seller — the writer — collects the premium and takes on the obligation to perform if the buyer exercises.
- what is the maximum loss when you buy a call option
- The premium you paid, and nothing beyond it. If the contract expires without moving in your favour it lapses worthless and the loss stops there — no margin call, no further demand. The open-ended risk on the other side of that same trade belongs to the option seller, who keeps your premium but carries the entire remaining exposure.
- can I buy one share worth of nifty futures
- No — index and stock derivatives in India trade only in fixed lot sizes set by the exchange, so the smallest position available is one lot. That is why a single derivatives contract usually carries a value of several lakh rupees even though the margin you post is a fraction of it. Exchanges revise lot sizes periodically to keep contract values inside the range the regulator prescribes.
- why do most retail F&O traders lose money
- SEBI has studied individual traders in the equity derivatives segment repeatedly and consistently found that the large majority lose money, with losses concentrated among the most active traders. The mechanism is arithmetic rather than mysterious: transaction costs per rupee of exposure are higher than in delivery equity, leverage amplifies whatever expectancy a trader already has, and frequency multiplies the result again. Where there is no tested edge, costs alone produce a steady drain and leverage only decides how quickly it arrives.