
Risk management is essential to F&O trading. While traders often focus on finding the right entry, it is equally important to decide how much they are willing to lose, when they want to book profits, and what they will do if the market moves unexpectedly.
On Groww, features such as Stop-Loss and Target, Trailing Stop-Loss, Safe Exit, Protect Profit and F&O Lock can help you manage different aspects of trading risk.
For simplicity, this guide uses NIFTY Call Options as examples.
This guide uses the same trade throughout so you can compare each feature.
Since options are traded in lots, the actual profit or loss is this amount multiplied by the lot size. If the lot size is 65, a ₹20 move is ₹1,300 for one lot.
Market depth shows the prices at which people are buying and selling the contract at that moment. It is worth a look before you fix your stop-loss and target.

In our example, the day’s low and high tell you whether a target of ₹120 and a stop-loss of ₹80 are realistic for the contract, or whether both are outside the range the premium has actually traded in.
A stop-loss is the level at which you exit to limit a loss, and a target is the level at which you exit to book a profit. You can attach both to the order itself, so you don't have to watch the screen for either.

For a stop-loss and a target together, use the Stoploss / target order (OCO).

In our example, you would buy at ₹100 with the SL at ₹80 and the TGT at ₹120. If the premium rises to ₹120 first, the target order is executed, and the stop-loss is cancelled. If it falls to ₹80 first, the stop-loss is executed, and the target is cancelled. One cancels the other, which is why it is called an OCO order.
A trailing stop-loss moves in the direction of a favourable price movement. Instead of staying at a fixed level, it follows the premium up and locks in part of the gain.

Take our example with a trail of ₹2. You buy at ₹100 with the stop-loss at ₹80.
The stop-loss only moves in your favour. This lets a trade protect part of its gain while staying open.
A stop-loss and a target work on one contract. Safe Exit works across your F&O positions, which is useful when you have more than one position open.

On the exit trigger screen, select “Limit loss at” to set the loss you are willing to take.

In our example, one lot of 65 with a ₹20 stop-loss is a loss of ₹1,300. If you have three such positions open and don't want the day to cost you more than ₹3,000 in total, a Limit Loss trigger at ₹3,000 closes everything once that level is crossed, even if each individual stop-loss hasn't been hit.
Protect Profit is the other side of the same exit trigger screen. Instead of capping the loss, it exits your positions when the profit you are already showing falls back to a level you have set.

In our example, suppose the premium has moved from ₹100 to ₹118 and one lot is showing a profit of about ₹1,350. You may not want to wait for the ₹120 target and risk the move reversing. Setting Protect Profit at ₹1,000 means the position is exited if the profit falls back to ₹1,000, so most of the gain is kept even if you are away from the screen.
F&O Lock is a control on you rather than on a position. It stops any further F&O trading for the rest of the day.

The confirmation screen explains what the lock does before you apply it.

Once applied, the app confirms that trading is locked for the rest of the day.

In our example, suppose the trade hit the ₹80 stop-loss and you feel the urge to take the trade again immediately. The lock removes that option for the day. Note that it cannot be reversed, so use it deliberately.
You can't undo an F&O Lock once it is applied. F&O Pause is the reversible version of the same idea: it stops further F&O trading, but you decide when to start again. It is useful when you want to step away for a while rather than close the segment for the whole day.
In our example, suppose the trade hit the ₹80 stop-loss and you want to stop for a while without closing the segment for the day. A pause lets you step back and resume when you are ready, while the lock keeps F&O closed till 11:59 PM.
These features work at different levels. Stop-Loss and Target act on a single order, Trailing Stop-Loss adjusts that order as the premium moves, Safe Exit and Protect Profit act on all your F&O positions together, and F&O Lock acts on your trading for the day.
None of them decides how much you should risk. That decision, like the ₹80 and ₹120 in the example above, has to be taken before the trade. The features only make sure the decision is carried out. Options involve significant risk, and no feature can guarantee profits.