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Revision in Market Lot of Derivative Contracts on Indices

Revision in Market Lot of Derivative Contracts on Indices

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  1. 06 Oct 2025
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In pursuance of SEBI guidelines for periodic revision of lot size for derivatives contracts specified in the SEBI circular SEBI/HO/MRD-PoD2/CIR/P/2024/00181 dated December 30, 2024, the market lot of derivative contracts on the following Indices shall be revised as follows:
 

Sr. No 

Underlying Index 

Symbol  

Present Market Lot 

Revised Market lot 

1 

Nifty 50                 

NIFTY 

75 

65 

2 

Nifty Bank 

BANKNIFTY 

35 

30 

3 

Nifty Financial Services 

FINNIFTY 

65 

60 

4 

Nifty Mid Select 

MIDCPNIFTY 

140 

120 


The market lot of derivative contracts on the following Index is unchanged:  

Sr. No 

Underlying Index 

Symbol  

Present Market Lot 

1 

Nifty Next 50 

NIFTYNXT50 

25 

 The following are the other points to be noted: 

  • For purpose of computation of contract value, the average closing price of the underlying index has been taken for one-month period of September 2025.
     
  • This circular shall come into effect from October28, 2025 (EOD).
     
  • The existing lot size will be applicable for weekly and monthly contracts till December 30,2025 expiry date. Lot size of existing quarterly and half yearly contracts will be revised on 30-Dec2025 EOD. For ease of understanding, a summary has been provided in Annexure.
     
  • The day spread order book will not be available for the combination contract of November 2025 – January 2026, December 2025 – January 2026 and December 2025 – February 2026.
     


Annexure 

Index Derivatives 

Expiration Cycle 

Last expiry with existing lot size 

First expiry with revised lot size 

Expiry Date 

Expiry Date 

NIFTY 

Weekly 

23-Dec-2025 

06-Jan-2026 

NIFTY 

Monthly 

30-Dec-2025 

27-Jan-2026 

BANKNIFTY 

FINNIFTY 

MIDCPNIFTY  

 

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) 

BANKNIFTY 

Quarterly 

31-Mar-2026*  

Lot size of all existing quarterly expiry contracts will be revised from  

December 30, 2025 (EOD) 

* 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). 

Note: Dates may be subject to change on account of any holiday declared.