Change in Market Lot Size of Index Derivatives

October 4, 2025

NSE has announced a revision in the market lot of index derivative contracts following SEBI’s periodic review guidelines (Circular dated December 30, 2024). The new lot sizes will come into effect from October 28, 2025 (EOD).

The market lot sizes of the following index derivative contracts have been revised:

For Nifty 50 (NIFTY), the lot size will change from 75 to 65.
For Nifty Bank (BANKNIFTY), the lot size will change from 35 to 30.
For Nifty Financial Services (FINNIFTY), the lot size will change from 65 to 60.
For Nifty Mid Select (MIDCPNIFTY), the lot size will change from 140 to 120.

Here is the circular link for more detail – click here

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