Table of Contents
- Overview
- Revised Market Lot Sizes
- When Will the New Lot Sizes Apply?
- NIFTY 50 Schedule
- BANKNIFTY Schedule
- FINNIFTY Schedule
- MIDCPNIFTY Schedule
- Why Did NSE Revise Lot Sizes?
- FAQ
Overview
The National Stock Exchange (NSE) has announced a revision in lot sizes for major index derivatives, effective December 30, 2025. All contracts expiring after this date will trade with revised lot sizes.
Revised Market Lot Sizes
| Index Name | Symbol | Current Lot Size | Revised Lot Size |
|---|---|---|---|
| NIFTY 50 | NIFTY | 75 | 65 |
| NIFTY BANK | BANKNIFTY | 35 | 30 |
| NIFTY Financial Services | FINNIFTY | 65 | 60 |
| NIFTY Midcap Select | MIDCPNIFTY | 140 | 120 |
When Will the New Lot Sizes Apply?
The new lot sizes apply from December 30, 2025. Contract applicability depends on their expiry type.
NIFTY 50 Schedule
| Expiry Type | Last Expiry (Old Lot) | First Expiry (New Lot) |
|---|---|---|
| Weekly | December 23, 2025 | January 06, 2026 |
| Monthly | December 30, 2025 | January 27, 2026 |
| Quarterly & Half-Yearly | March 31, 2026 | Revised at EOD December 30, 2025 |
BANKNIFTY Schedule
| Expiry Type | Last Expiry (Old Lot) | First Expiry (New Lot) |
|---|---|---|
| Monthly | December 30, 2025 | January 27, 2026 |
| Quarterly | March 31, 2026 | Revised at EOD December 30, 2025 |
FINNIFTY Schedule
| Expiry Type | Last Expiry (Old Lot) | First Expiry (New Lot) |
|---|---|---|
| Monthly | December 30, 2025 | January 27, 2026 |
MIDCPNIFTY Schedule
| Expiry Type | Last Expiry (Old Lot) | First Expiry (New Lot) |
|---|---|---|
| Monthly | December 30, 2025 | January 27, 2026 |
Why Did NSE Revise Lot Sizes?
NSE periodically adjusts lot sizes to maintain a consistent contract value, improve liquidity, and reduce overall trading risk.
Click here to check the exchange circular.
Frequently Asked Questions (FAQ)
1. When will the new lot sizes take effect?
From December 30, 2025.
2. Which indices are affected?
NIFTY, BANKNIFTY, FINNIFTY, MIDCPNIFTY.
3. Are weekly contracts affected?
Yes — the change applies to expiries after January 06, 2026 (NIFTY weekly).
4. Will old contracts be modified?
Quarterly and half-yearly lots will be revised at EOD on December 30, 2025.
5. What is the new BANKNIFTY lot size?
30 (reduced from 35).
