NSE increases lot size for Bank Nifty and Nifty Midcap Select derivative contracts
Bank Nifty and Nifty Midcap Select, increasing them to 35 and 140, respectively. The changes will be effective for all new contracts introduced from April 25, 2025, onwards, NSE said in a circular.
The lot size for Bank Nifty will increase from 30 to 35, while Nifty Midcap Select will go up from 120 to 140. Existing contracts with expiries on April 24, May 29, and June 26, 2025, will continue to trade with the previous lot sizes until expiry, NSE said.
Notably, the market lot sizes for other index derivatives, including Nifty 50, Nifty Financial Services, and Nifty Next 50, remain unchanged at 75, 65, and 25, respectively.
The revision follows the Securities and Exchange Board of India’s (SEBI) guidelines for periodic lot size adjustments to maintain contract values within the prescribed notional range. The move is part of NSE’s broader efforts to align derivatives contracts with regulatory requirements and market dynamics.
On March 27, SEBI proposed limiting expiries of all equity derivatives contracts on an exchange to either Tuesday or Thursday, aiming to provide optimal spacing between expiries across exchanges while avoiding Mondays and Fridays.
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NSE had earlier announced a shift in F&O expiry days for Nifty, Bank Nifty, FinNifty, Nifty Next50, and Nifty Midcap Select to Monday, effective April 4, 2025. Under SEBI’s consultation paper, exchanges will now require prior regulatory approval for modifying contract expiries or settlement days.
In October 2024, NSE had increased the lot sizes for