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Cross Margin


  • Cross margining benefit is available across Cash and Derivatives segment
  • Cross margining benefit is available to all categories of market participants
  • For client/entities clearing through same clearing member in Cash and Derivatives segments, the clearing member is required to intimate client details through a file upload through Collateral Interface for Members (CIM) to avail the benefit of Cross margining
  • For client/entities clearing through different clearing member in Cash and Derivatives segments they are required to enter into necessary agreements for availing cross margining benefit.
  • For the client/entities who wish to avail cross margining benefit in respect of positions in Index Futures and Constituent Stock Futures only, the entity’s clearing member in the Derivatives segment has to provide the details of the clients and not the copies of the agreements. The details to be provided by the clearing members in this regard are stipulated in the Format.

Download file format (.doc)

Cross margining shall be available across Capital market and F&O segment and to all categories of market participants. The positions of clients in both the Capital market and F&O segments to the extent they offset each other shall be considered for the purpose of cross margining as per the following priority

    1. Index futures and constituent stock futures in F&O segment
    2. Index futures and constituent stock positions in Capital market segment
    3. ETF and constituent stock futures in F&O segment
    4. ETF and constituent stock positions in Capital market segment
    5. Index futures and ETF in Capital market segment
    6. Stock futures in F&O segment and stock positions in Capital market segment
    7. Index Futures contract in F&O Segment on eligible equity indices
  1. In order to extend the cross margin benefit as per (a) and (b) above, the basket of constituent stock futures/ stock positions shall be a complete replica of the index futures. Clearing Corporation shall specify the number of units of the constituent stocks/ stock futures required in the basket to be considered as a complete replica of the index on the website of the Exchange from time to time.
  2. In order to avail the cross margin benefit as per (c) and (d) above, the constituents and the number of units of the constituent stocks/ stock futures required in the basket to be considered as a complete replica of the ETF shall be the same as that of the respective underlying Index specified by the clearing corporation on the website of the Exchange from time to time.
  3. The number of units shall be changed only in case of change in share capital of the constituent stock due to corporate action or issue of additional share capital or change in the constituents of the index.
  4. The positions in F&O segment for stock futures and index futures shall be in the same expiry month to be eligible for cross margining benefit.
  5. The position in a security/index shall be considered only once for providing cross margining benefit. E.g. Positions in stock futures of security A used to set-off against index futures positions shall not be considered again if there is a off-setting positions in the security A in Capital market segment. Similarly Positions in Index A used to set-off against Index B shall not be considered again if there is an off-setting positions in Index C or constituent stocks/ETFs in Capital market segment or constituent stock futures in F&O segment
  6. Positions in option contracts shall not be considered for cross margining benefit.
  7. The positions in ETFs and constituent stocks shall be in the same settlement number to be eligible for cross margining benefit.
  8. In the event of a suspension on creation / redemption of the ETF units, the cross-margining benefit shall be withdrawn.
  9. Clearing corporation may revise the list of eligible ETFs and minimum quantity required from time to time.
  10. In order to extend the cross margin benefit as per (g) above the equity indices pairs shall satisfy the below mentioned conditions:
    • A positive correlation of more than 0.90 for a period of six months between the values of the equity Indices and
    • At least 80% of constituents of one of the index is present in the other index and
    • The constituents of smaller index based on free float market capitalization shall have at least 80% weightage in the larger index based on free float market capitalization
    • The eligibility criteria shall be checked on a monthly basis on the 15th of every month or on the day of change in the constituents of the equity indices
    • If the equity indices pairs fail to fulfil any of the abovementioned eligibility criteria, cross margining benefit shall not be given after the upcoming monthly expiry

The clearing member has to inform NSE Clearing the details of client to whom cross margining benefit is to be provided. The cross margining benefit is available only if clearing members provide the details of clients in such manner and within such time as specified by NSE Clearing from time to time.

  • Client/entity settling through same clearing member in both Cash and F&O segment
    1. The clearing member has to ensure that the code allotted (code used while executing client trade) to client/entity in both Cash and F&O segment is same
    2. The clearing member must inform the details of clients to whom cross margining benefit is to be provided through a file upload facility provided in Collateral Interface for Members (CIM).
  • Client/entity settling through different clearing member in Cash and F&O segment
    1. In case a client settles in the Cash segment through a trading member / custodian and clears and settles through a different clearing member in F&O segment, then they are required to enter into necessary agreements.
    2. In case where the client/entity settles through Custodian in Cash segment, then the client/entity, custodian and the clearing member in F&O segment are required to enter into a tri-partite agreement as per the format
    3. In case where the client/entity clears and settles through a member in Cash segment, and a different clearing member in F&O segment, then the member in Cash segment and the clearing member in F&O segment have to enter into an agreement as per the format. Further, the client/entity must enter into an agreement with the member as per the format.
    4. The clearing member in the F&O segment must intimate to NSE Clearing the details of the client/entity in F&O segment along-with letter from trading member/custodian giving details of client/entity in Cash segment who wish to avail cross margining benefit.

      Download Agreement between member, custodian & constituent (.doc)

      Download Amendment agreement to the clearing / trading member agreement (.doc)

      Download Agreement between stock broker & client (.doc)

      Download the file for details of the client/entity (.doc)

As specified by SEBI, a client may maintain two accounts with their respective members to avail cross margin benefit only. The two accounts namely arbitrage account and a non-arbitrage account may be used for converting partially replicated portfolio into a fully replicated portfolio by taking opposite positions in two accounts. However, for the purpose of compliance and reporting requirements, the positions across both accounts shall be taken together and client shall continue to have unique client code.

Computation of cross margining benefit

  • The computation of cross margining benefit is done at client level on an online real time basis and provided to the trading member / clearing member / custodian, as the case may be, who, in turn, shall pass on the benefit to the respective client.
  • For institutional investors the positions in Cash segment are considered only after confirmation by the custodian on T+1 basis and on confirmation by the clearing member in F&O segment.
  • The positions in the Cash and F&O segment are considered for cross margining only till time the margins are levied on such positions.
  • While reckoning the offsetting positions in the Cash segment, positions in respect of which margin benefit has been given on account of early pay-in of securities or funds are not considered.
  • The positions which are eligible for offset, are subject to spread margins. The spread margins are 25% of the applicable upfront margins on the offsetting positions or such other amount as specified by NSE Clearing from time to time. In respect of positions which are eligible for offset in Index Futures contract on eligible equity indices pairs, the spread margins shall be 30% of the applicable upfront margins on the offsetting positions or such other amount as specified by NSE Clearing from time to time
  • The difference in the margins on the total portfolio and on the portfolio excluding off-setting positions considered for cross margining, less the spread margins is considered as cross margining benefit.

    Download Example of computation of offsetting positions (.pdf)

In the event of default by a trading member / clearing member / custodian, as the case may be, whose clients have availed cross margining benefit, NSE Clearing may:

  • Hold the positions in the cross margin account till expiry in its own name.
  • Liquidate the positions / collateral in either segment and use the proceeds to meet the default obligation in the other segment.
  • In addition to the foregoing provisions, take such other risk containment measures or disciplinary action as it may deem fit and appropriate in this regard.

Additional reports providing details of cross margin benefit and off-setting positions at client level are provided to members as per the format specified

Download Format of report giving details of cross margin benefit (CM Segment) (.pdf)

Updated on: 18/02/2021
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