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    New Updates In Futures & Options

    What are the new lot sizes for index derivatives?

    SEBI has increased the lot sizes for various index derivatives to ensure that the contract value ranges between ₹15 lakh and ₹20 lakh. 

    Sr. No. Index Market Lot Effe. from 2nd Jan, 2025  Market Lot Effe. from 30th June, 2025 Market Lot Effe. from 31st Dec, 2025
    1 Nifty 50 75 75 65
    2 Nifty Bank 30 35 30
    3 Nifty Financial Services 65 65 60
    4 Nifty Midcap Select 120 140 120
    5 Nifty Next 50 25 25 25
    6 BSE Sensex 20 20 20
    7 BSE Bankex 30 30 30
    8 BSE Sensex 50 60 70 70

    For long-dated Nifty and Bank nifty:

    Index Derivatives           Expiration Cycle Expiry Date Particulars
    NIFTY Quarterly & Half Yearly      31-Mar-2026*      Lot size of all existing quarterly and half yearly expiry contracts will be revised from December 30, 2025 (EOD) i.e.,65  
    BANK NIFTY Quarterly 31-Mar-2026* Lot size of all existing quarterly expiry contracts will be revised from December 30, 2025 (EOD) i.e.,30

    * Please note, the March 2026 contract which was introduced as quarterly contract will become far month contract of the respective index derivatives on December 2025 monthly expiry day (EOD)

    When will the new lot sizes for weekly and monthly contracts be effective? What happens to existing contracts during the transition? Can different lot sizes co-exist in the same month? How do the new lot sizes impact margin requirements? What other changes has SEBI introduced in the F&O segment? What is the rationale behind the changes in Futures and Options new rules mentioned in circular dated November 2024? What are the implementation dates for the new changes? What is revised expiry schedule for NSE contracts? What is revised expiry schedule for BSE contracts? When will the new lot sizes for derivative contracts be effective? What is the change in lot size for long dated and do I need to square off my long-dated positions?