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Change in Lot Sizes for Nifty Derivatives

The NSE has announced changes in the lot size of some popular derivative contracts. This will take effect from October 28, 2025 (EOD). 

 

What’s Changing? 

Index 

Symbol 

Current Lot 

New Lot 

Nifty 50 

NIFTY 

75 

65 

Nifty Bank 

BANKNIFTY 

35 

30 

Nifty Financial Services 

FINNIFTY 

65 

60 

Nifty Mid Select 

MIDCPNIFTY 

140 

120 

  • No change in Nifty Next 50 (Lot size remains 25). 

 

Why it Matters? 

  • Lower lot sizes mean lower contract value, making it easier for investors and traders to participate. 

  • These changes are part of SEBI’s regular review to keep contract sizes aligned with market levels. 

  • Existing contracts will continue with current lot sizes till December 30,2025 expiry. 

 

 

Key Dates to Remember 

  • October 28, 2025: New lot sizes apply for contracts. 

  • December 30, 2025: Transition for quarterly and half-yearly contracts. 

 

Tip: Investors should recheck their open positions and fresh trades in these indices after the change. 

Latest Updates

04 Oct 2025

Update

Mock Trading Session – 4th October 2025

Arihant Capital will participate in the mock trading session on Saturday, 4th October 2025 (11:00 AM – 4:00 PM) across Equity, Equity F&O, and Commodity segments. Order placement will be enabled, margins (if blocked) will be released before Monday, and instant withdrawals will not be available for the day.

03 Oct 2025

Update

Quarterly Settlement – October 2025

All unused funds in your trading account as of Oct 03 will be transferred to your bank account on Oct 04. Withdrawals placed on/after Oct 2 will be processed on Oct 4. Instant withdrawal will not be available on Oct