Day trading
Why the session close changes the decision
A day trade is defined by its clock, not by its size. The position must be flat before the session ends. That single rule removes the swap, but it also removes the option to wait. Every choice has to be made while prices are still moving.
Consider a reader who buys 0.10 standard lots of USD/INR at 83.2500 at 10:00 and watches the price fall to 83.2470 by 15:00. The move is 30 pips against the position. One pip on 0.10 standard lots is ₹1, so the open loss is ₹30. The session close is near, and the price is still falling.
That reader has two honest choices. Close at ₹30 and keep the day trade a day trade, or hold past the close and accept an overnight position with a swap charge and gap risk. Both are decisions. Only the first one matches the plan made at entry.
The trap is not the loss. The trap is the sentence that starts with the word hope. Hope is not a plan, and the session close does not wait for it. A day trade that becomes an overnight trade has changed its nature without anyone deciding to change it.
Position size measured in rupees at risk
Sizing by feel means choosing a lot size because it looks reasonable. Sizing by risk means choosing a lot size after naming the rupee amount that would be lost if the stop is hit. The second method turns a vague fear into a number.
Suppose the plan allows a ₹50 loss on the trade. The stop sits 25 pips from entry. One pip on 0.10 standard lots is ₹1, so 25 pips is ₹25. That is half the allowed loss, so the size can be doubled to 0.20 standard lots, where 25 pips is ₹50. The arithmetic sets the size, not the mood.
Now suppose the same ₹50 limit meets a stop 10 pips away. One pip on 0.10 standard lots is ₹1, so 10 pips is ₹10. To reach ₹50 the size would be 0.50 standard lots. That is a large position for a small stop, and a small error in the stop price becomes a large rupee error.
The rule is simple. Divide the rupee risk by the pip distance, then divide again by the pip value per lot. The result is the lot size. If the answer feels too large, the stop is too tight for the money at risk, and the trade should be skipped rather than resized by instinct.
Costs sit on top of the loss. The spread and any commission are charged on entry and exit, and they vary between brokers. A gross loss of ₹50 can be larger once those costs are counted, so the risk limit should leave room for them.
The moving market and the fixed plan
A day trade is decided in two places. The plan is written before the session, when nothing is moving. The execution happens during the session, when everything is moving. The plan is the only part that stays still.
Write the entry price, the stop price, the target price and the lot size before the first tick. On USD/INR at 83.2500, a plan might read: buy 0.10 standard lots, stop at 83.2475, target at 83.2550. The stop is 25 pips away and the target is 50 pips away. One pip on 0.10 standard lots is ₹1, so the risk is ₹25 and the gross target is ₹50.
During the session the price will touch neither, one, or both. The plan does not change because the screen is green or red. It changes only if the reason for the trade disappears. That is a different event from a price move.
A session has a natural end. As that end approaches, the plan should already say what happens to an open position. If it says close, close. If it says hold, then the trade was never a day trade and should have been planned with a swap cost and an overnight stop.
The market does not know the plan. It will keep moving after the close and before the next open. The only protection is a decision made in advance, written down, and followed when the screen is loud.
One more check belongs in the plan. The broker may quote a different entry and exit price, and may charge a commission or spread. Those costs vary between brokers, so the gross figures are a ceiling, not a promise.
One day on USD/INR: 30 pips on 0.10 lots
| Step | Amount | Note |
|---|---|---|
| Instrument and price | USD/INR at 83.2500 | the price used for this example |
| Position size | 0.10 standard lots | one tenth of a standard lot |
| Pip value on this size | ₹1 per pip | ₹10 per pip on one standard lot, divided by 10 |
| Entry | buy at 83.2500 | opened during the session |
| Exit | sell at 83.2530 | closed before the session ends, so no swap |
| Move in pips | 30 pips | 83.2530 minus 83.2500 is 0.0030, which is 30 pips |
| Gross result | ₹30 | 30 pips multiplied by ₹1 per pip |
The broker may quote a slightly different price on entry and exit, and may charge a commission or a spread on top. Those costs vary between brokers, so the final figure can be lower than the gross result shown.
Doing it once, step by step
Work through the same sequence each time you consider a day trade, using the numbers from the plan rather than from the screen. The order matters because each step feeds the next.
- 01
Write the session window
Name the start and end of the session you will trade. The trade must be flat by the end, unless you decide in advance to hold overnight. That decision changes the trade from a day trade to an overnight position with a swap cost.
- 02
Mark the stop distance in pips
Choose the price where the reason for the trade is gone. Measure the distance from entry in pips. On USD/INR, 83.2500 to 83.2475 is 25 pips. The stop is a price, not a feeling.
- 03
Convert pips to rupees per lot
Find the pip value for one standard lot on the instrument. On USD/INR it is ₹10 per pip per standard lot. Multiply by the lot size to get the rupee value of one pip for your position.
- 04
Divide the risk limit by the pip value
Take the rupee amount you are willing to lose and divide it by the pip value of your chosen size. A ₹50 limit with a pip value of ₹1 allows 50 pips. If the stop is 25 pips away, the size can be 0.20 standard lots.
- 05
Set the exit before the entry
Write the target price and the stop price beside the entry price. For a 0.10 standard lot trade with a 50 pip target, the gross result is 50 multiplied by ₹1, which is ₹50. Costs may reduce it, and those costs vary between brokers.
- 06
Close or convert at the session end
If the position is open as the session ends, close it or accept the overnight swap and gap risk. Do not let the clock decide for you. A day trade that becomes an overnight trade by accident is no longer the trade you planned.
The mistake most people make here
The common mistake is to hold a losing day trade past the session close, hoping it comes back, which turns a planned day trade into an overnight position with a swap cost. Another is to size the position by feel rather than by the money at risk, so a 30 pip move that looked small becomes a large rupee loss. Decide the exit before entering, and if the session is ending, close the trade rather than carry it. If you want to hold overnight, that is a different decision and should be planned as one.Check yourself
You buy 0.20 standard lots of USD/INR at 83.2500 and close at 83.2525. How many pips is the move and what is the gross result in ₹?
83.2525 minus 83.2500 is 0.0025, which is 25 pips. One pip on 0.20 standard lots is ₹2, so the gross result is 25 multiplied by ₹2, which is ₹50.
A day trade on 0.05 standard lots moves 40 pips against you. What is the loss before costs, and why does it matter that the trade is closed the same day?
One pip on 0.05 standard lots is ₹0.50, so 40 pips is 40 multiplied by ₹0.50, which is ₹20. Closing the same day means no swap is added, so the loss stays at the amount shown before any commission or spread.
Questions that come up next
Does the session close at the same time every day for USD/INR?
The forex market runs around the clock on weekdays, so there is no single global close. For a reader in India, the practical close is the end of the broker's trading day, which often falls in the evening or at midnight. That time varies between brokers and can shift when daylight saving changes in other countries. Check the exact cut-off in the platform's contract details before you plan a day trade.
What happens if I am still in a trade when the session ends?
If you do not close the position, the broker rolls it into the next day. That makes it an overnight position, and a swap charge is added. The swap can be positive or negative depending on the currency pair and the direction of your trade. The amount varies between brokers and is not known in advance. The decision to hold is yours, but it is a different trade from the one you opened.
How do I work out the lot size from the money I am willing to lose?
First decide the rupee amount you accept losing if the stop is hit. Then measure the stop distance in pips. Divide the rupee risk by the pip distance, and divide again by the pip value per lot. For example, ₹50 risk and a 25 pip stop on USD/INR gives ₹2 per pip, which is 0.20 standard lots. If the answer looks too large, the stop is too tight and the trade should be skipped.
Do spread and commission change the result of a day trade?
Yes. The spread is the gap between the buy price and the sell price, and a commission may be charged on top. Both are applied when you enter and when you exit, so they reduce a gain or increase a loss. These costs vary between brokers and between account types. A gross figure of ₹50 can become a larger loss once they are counted.
Can I place a day trade outside Indian market hours?
Forex trading hours are set by the global market, not by Indian share market hours. USD/INR is most active when both the Indian and the United States sessions overlap, which is late afternoon and evening in India. You can trade at other times, but the spread is often wider when activity is low. Wider spreads mean a larger cost on every trade.
Is there a minimum amount needed to start day trading?
There is no single figure that applies to everyone. The minimum depends on the broker and on the size of the position you take. A smaller lot size needs less money set aside for margin. What matters more is that your risk per trade stays small compared with the total funds in the account. A common guide is to risk no more than a small percentage of the account on one trade, but the exact number is a personal choice.
The words used on this page
- session
- The period during which a broker accepts and settles trades for one trading day. A day trade must be opened and closed inside this window. The exact start and end times vary between brokers.
- swap
- A charge or credit applied when a position is held past the session close. It reflects the interest rate difference between the two currencies in the pair. The amount varies between brokers and can be positive or negative.
- pip
- The smallest standard move in a currency pair's price. For USD/INR, one pip is 0.0001. On one standard lot, one pip is worth ₹10.
- standard lot
- A fixed position size used in forex trading. For USD/INR, one standard lot gives a pip value of ₹10. Smaller sizes are fractions of a standard lot, such as 0.10 or 0.20.
- spread
- The difference between the price at which you can buy and the price at which you can sell at the same moment. It is a cost on every trade. The size of the spread varies between brokers and can widen when the market is quiet.
What to take away
- A day trade is closed before the session ends, so no swap is charged.
- The lot size comes from the rupee risk and the stop distance, not from how the market feels.
- If the session is ending and the trade is still open, closing it keeps the plan intact.
- Spread and commission vary between brokers and sit on top of the gross result.