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At the time of Rollover with spread order placement, additional differential margin required for taking position in destination month (Mid/Far) will be calculated basis spread rate i.e. Additional margin required on Rollover with spread = Margin required to take new position in destination month contract - Existing margin blocked on source month position + Notional Loss of Source Month Futures position. (Please note in case of notional loss the same will be added in the margin required and in case of notional Profit the same is ignored.) a. If the spread rate is positive or zero - In case of Loss : Margin required to take new position in destination month contract = (source month LTP + Spread Rate) * IM% * Quantity. For Example: You have a buy position of 50 quantity in say Fut-Nifty- 31-Aug-2023 at Rs.19600 and IM% is 10%. You now want to Rollover with spread this entire position to Fut-Nifty-28-Sept-2023 at spread rate of 50 and at the time of Rollover with Spread the LTP of Fut-Nifty- 31-Aug-2019 is 19600 and Fut-Nifty-28-Sept-2023 is 19500. Then in the above example: Existing Margin blocked = 19600*50*10% = 98000 Notional Profit/ (Loss) = (19500-19600)*50 = 5000 Loss Margin required to take new position in destination month = [(19500+50) * 10% * 50)] = 97750 Additional Margin required to Rollover with spread = 97750 - 98000 + 5000 = 4750 b. If the spread rate is positive or zero - In case of Profit : Margin required to take new position in destination month contract = (source month LTP + Spread Rate) * IM% * Quantity. For Example: You have a buy position of 50 quantity in say Fut-Nifty- 31-Aug-2023 at Rs.19500 and IM% is 10%. You now want to Rollover with spread this entire position to Fut-Nifty-28-Sept-2023 at spread rate of 50 and at the time of Rollover with Spread the LTP of Fut-Nifty- 31-Aug-2023 is 19550 and Fut-Nifty-28-Sept-2023 is 19600. Then in the above example: Existing Margin blocked = 19500*50*10% = 97500 Notional Profit/ (Loss) = (19550-19500)*50 = 2500 Profit Margin required to take new position in destination month = [(11075+25) * 10% * 75)] = 83250 Additional Margin required to Rollover with spread = 83250-82875 = 375 *Please note notional profit is not considered for additional margin required in spread rollover. c. If the spread rate is negative - In case of Loss : Margin required to take new position in destination month contract = (higher of source/ destination month LTP) * IM% * Quantity For Example: You have a buy position of 75 quantity in say Fut-Nifty- 26-Sept-2019 at Rs.11050 and IM% is 10%. You now want to Rollover with spread this entire position to Fut-Nifty-31-Oct-2019 at spread rate of -5 and at the time of Rollover with Spread the LTP of Fut-Nifty- 26-Sept-2019 is 11015 and Fut-Nifty-31-Oct-2019 is 11110. Then in the above example: Existing Margin blocked = 11050*75*10% = 82875 Notional Profit/ (Loss) = (11015-11050) *75 = 2625 Loss Margin required to take new position in destination month = (11110 * 10% * 75) = 83325 Additional Margin required to Rollover with spread = 83325 - 82875 + 2625 = 3075 d. If the spread rate is negative - In case of Profit: Margin required to take new position in destination month contract = (higher of source/ destination month LTP) * IM% * Quantity For Example: You have a buy position of 75 quantity in say Fut-Nifty- 26-Sept-2019 at Rs.11050 and IM% is 10%. You now want to Rollover with spread this entire position to Fut-Nifty-31-Oct-2019 at spread rate of -5 and at the time of Rollover with Spread the LTP of Fut-Nifty- 26-Sept-2019 is 11075 and Fut-Nifty-31-Oct-2019 is 11110. Then in the above example: Existing Margin blocked = 11050*75*10% = 82875 Notional Profit/ (Loss) = (11075-11050) *75 = 1875 Profit* Margin required to take new position in destination month = (11110 * 10% * 75) = 83325 Additional Margin required to Rollover with spread = 83325-82875 = 450 *Please note notional profit is not considered for additional margin required in spread rollover. Please note, if you are mapped to SPAN then above margining will not be applicable and it will be on portfolio basis as per exchange SPAN.