Tuesday, October 7, 2025 3:35 pm
There’s an important update from the National Stock Exchange (NSE). The lot sizes of index derivatives contracts are being revised soon.
Here’s an overview of the changes in lot sizes:
| Index | Existing lot size | Revised lot size |
|---|---|---|
| NIFTY50 | 75 | 65 |
| BANKNIFTY | 35 | 30 |
| FINNIFTY | 65 | 60 |
| MIDCAP NIFTY | 140 | 120 |
| NIFTY NEXT 50 | 25 | 25 (No change) |
Dates when the new lot sizes will come into effect:
| Index | Expiry Cycle | Last expiry with the existing lot size | First expiry with revised lot size |
|---|---|---|---|
| NIFTY50 | Weekly | 23 Dec 2025 | 06 Jan 2026 |
| NIFTY50 | Monthly | 30 Dec 2025 | 27 Jan 2026 |
| BANKNIFTY | Monthly | 30 Dec 2025 | 27 Jan 2026 |
| FINNIFTY | Monthly | 30 Dec 2025 | 27 Jan 2026 |
| MIDCAP NIFTY | Monthly | 30 Dec 2025 | 27 Jan 2026 |
| Index | Expiration cycle | Expiry dates | Particulars |
|---|---|---|---|
| Nifty 50 | Quarterly & Half-Yearly | 31 Mar 2026 | Lot size of all existing quarterly and half-yearly expiry contracts will be revised from 30 Dec 2025 (EOD) |
| Bank Nifty | Quarterly | 31 Mar 2026 | Lot size of all existing quarterly and half-yearly expiry contracts will be revised from 30 Dec 2025 (EOD) |
Please keep these changes in mind while carrying out your derivative trades.
