How does paper trading work?
The setup
You make a practice trade in the same steps as a real trade, but with practice cash. Start with a practice balance of ₹50,000. You buy one option at ₹100 a unit. To keep the maths easy, the example lot here is 50 units. It is not the NIFTY or BANKNIFTY lot size. The premium paid is ₹100 × 50 = ₹5,000, before charges. That is what the option cost, not a ₹5,000 loss. While you hold it, the option still has a value.
What happens next
Later you sell the same option at ₹120 a unit. You receive ₹120 × 50 = ₹6,000, before charges. The gross profit is ₹6,000 − ₹5,000 = ₹1,000. Say the charges for buying and selling come to ₹100 in total. That figure is an assumption for this lesson. The net profit is ₹900, and the practice balance ends at ₹50,900. Sell at ₹100 instead and the result is a ₹100 loss, because the charges still apply.
What it means — and does not
One practice trade shows what happened once. It does not prove the idea will work again. An exit at the same price can still end in a loss once costs are counted. So the useful question is not "did I make money?" It is "did I follow my plan, count the costs and understand the result?" You can learn more from a losing practice trade than from a winning one, if you can explain it.
What are the limits of paper trading?
A practice desk cannot copy everything about a real market. In real trading, other people compete for the same orders. Prices can jump, orders can wait unfilled and delays happen. Real money also brings fear and hope that practice cash does not. Fast playback changes how a trade feels, because waiting is part of the real thing. The Paper Trading desk makes its prices from a model. They are not NSE's live prices, and a practice result is not a forecast of real returns.
Things to check
6Before you start, write down one question the practice should answer.
Note the contract, the quantity and the starting practice balance.
Write your reason for the trade, and what would show that reason was wrong.
Decide how you will exit before you press Play. Keep the size the same while you test one idea.
Record the fill prices and the charges, and keep every losing attempt in the record.
Change one thing at a time, then compare the two results.
Common mistakes
5Starting again after every loss and remembering only the good runs.
Trading a bigger size because practice losses do not hurt.
Ignoring the charges, the spread, or an order that never filled.
Replaying a scenario you have already seen and calling the result a prediction.
Treating a few winning practice trades as proof that you are ready for real money.
Your practice balance on the desk rises by ₹2,000. What has happened?
- You earned ₹2,000 that you can take out
- A practice result changed on the screen, and no money was earned
- You proved the idea works, as long as you repeat it the same way every time
Show the answer
B. A practice result changed on the screen, and no money was earned
Practice cash is not money, so there is nothing to take out. The third answer is tempting because a good result feels like proof. It only shows what happened once, inside a model.
Frequently asked
4Is paper trading the same as options trading?
No. Paper trading is a way to practise with practice cash. Options trading means trading one kind of contract. You can paper trade options, futures or shares.
Does the Paper Trading desk use live NSE prices?
No. The desk makes its own practice markets from a model. That is what lets you pause, speed up and replay a scenario. Its prices are not the exchange's live prices.
Do I need a broker to use the desk?
No. The desk sends no orders to a broker, and there is no sign-up. Trading on a real exchange is a separate step, with a broker and its own rules.
How long should I practise?
No number of days or winning trades proves you are ready. Practise across different scenarios until you can explain the contract, the fills, the costs and the possible loss of each trade. That is a learning goal, not a promise about real trading.