The Move SL to cost feature in Strategy builder helps reduce risk by automatically protecting your remaining open legs when one leg hits its stop-loss.

This feature is available under Additional settings and appears only when you have added more than one leg to a strategy and enabled stop-loss for those legs.

How “Move SL to cost” works

When Move SL to cost is enabled, Strategy builder watches all open legs in your strategy. If the stop-loss of any one leg gets hit, the stop-loss of the remaining open legs on the opposite side is automatically moved to their entry price (cost).

This ensures that once part of the strategy exits at a loss, the remaining legs are protected from further loss.

Simple examples

Example 1: Two-leg strategy

You have a strategy with:

• Sell CE
• Sell PE

If the Sell CE leg hits its stop-loss, the stop-loss of the Sell PE leg is automatically moved to its entry price.

Important behaviour to know

• This feature works only on individual leg stop-loss, not on combined premium stop-loss.
• Stop-loss moves to cost only when multiple legs are open at the same time.

Using Move SL to cost with other features

With Wait and trade

If only one leg is open and its stop-loss is hit, there is no opposite leg to protect. If the opposite leg enters later, its stop-loss will be applied as originally set and will not move to cost.

With Re-entry/Re-execute

If re-entries happen multiple times, the side that first caused the stop-loss to move to cost will continue to behave the same way for future re-entries. .

Simple examples

Example 1: Two-leg short strangle

You create a two-leg strategy with stop-loss enabled on both legs:

• Sell NIFTY 22500 CE at ₹120
  Stop-loss set at ₹180
• Sell NIFTY 21500 PE at ₹110
  Stop-loss set at ₹170

You also enable Move SL to cost under Additional settings.

What happens during execution

• The Sell CE leg hits its stop-loss at ₹180 and exits at a loss.
• At the same time, the Sell PE leg is still open.

Because Move SL to cost is enabled:

• The stop-loss of the remaining Sell PE leg is automatically moved from ₹170 to its entry price of ₹110 (cost).

If the PE premium later increases:

• The leg exits at ₹110, resulting in no further loss on that leg.

This ensures that once one leg exits at a loss, the remaining open leg is protected from additional downside.

Example 2: With Wait and Trade enabled

You create a two-leg strategy with stop-loss enabled on both legs:

• Sell CE – enters immediately
• Sell PE – configured with Wait and Trade

You also enable Move SL to cost under Additional settings.

How the strategy behaves

When the strategy is triggered, the CE leg enters immediately, and the PE leg waits for the Wait and Trade condition to be fulfilled before placing the order.

If the Sell CE leg hits its stop-loss before the Sell PE leg enters:

• The CE leg exits at its stop-loss.
• The PE leg is not yet active, so there is no opposite leg open at that time.

Result

• Move SL to cost does not apply because only one leg was open when the stop-loss was hit.
• If the PE leg enters later, its stop-loss remains as originally configured and is not moved to cost.