Market facts
Bank Nifty Lot Size
One Nifty Bank (Bank Nifty) futures or options lot is 30 units, the size NSE lists for the contract months from January 2026, down from 35. At an index level of 55,000 (illustrative), one lot has a contract value of ₹16,50,000, and a 100-point move in the index changes the value of one lot by ₹3,000.
Worked example
Contract value = lot size × index level = 30 × 55,000 = ₹16,50,000.
A 100-point change in the index changes the value of one lot by 30 × 100 = ₹3,000, in either direction.
The index level above is an illustration, not a current quote. For today's level see the index pages or the exchange.
Lot size change history
| Applies from | Change | Source |
|---|---|---|
| Contracts from April 2025 (first July 2025 expiry) | 30 to 35 | NSE announcement of 31 March 2025, effective 25 April 2025 |
| Contracts from the January 2026 series | 35 to 30 | NSE circular NSE/FAOP/70616 |
First expiries with the January 2026 sizes: weekly 6 January 2026 (Nifty 50 only), monthly 27 January 2026.
Other index lot sizes
| Index | Symbol | Exchange | Lot size |
|---|---|---|---|
| Nifty 50 | NIFTY | NSE | 65 |
| Nifty Financial Services | FINNIFTY | NSE | 60 |
| Nifty Midcap Select | MIDCPNIFTY | NSE | 120 |
| Nifty Next 50 | NIFTYNXT50 | NSE | 25 |
| BSE Sensex | SENSEX | BSE | 20 |
NSE's market-lot file, as read by an independent site on 15 October 2026, lists these sizes for the October, November and December 2026 series.
Source and last verified
Last verified: 31 October 2026. Checked against several independent reports of the official document; the document itself could not be opened when this page was built. Confirm on the exchange website before relying on a date.
Revision circular: NSE/FAOP/70616 (3 October 2025). Stock futures and options have their own lot sizes, which NSE also revises; check the current list on the exchange website.
Official sources: NSE: exchange circulars · NSE: equity derivatives contract specifications
Related
Frequently asked questions
What is the Nifty Bank (Bank Nifty) lot size?
30 units per lot, for the contract months from January 2026. The size applies to futures and options alike.
How much is one Nifty Bank (Bank Nifty) lot worth?
Contract value is the lot size times the index level. At an illustrative level of 55,000 that is 30 × 55,000 = ₹16,50,000. The margin needed is a part of this and is set by the exchange and broker.
How much does one point in Nifty Bank (Bank Nifty) move one lot?
Each index point changes the value of one lot by ₹30 (the lot size).
When does NSE change lot sizes?
NSE revises index lot sizes periodically so contract values stay within the range SEBI sets. The January 2026 change followed circular NSE/FAOP/70616 (3 October 2025).
Which day does Nifty Bank (Bank Nifty) expire?
Bank Nifty has monthly contracts only (weekly contracts ended on 20 November 2024). They expire on the last Tuesday of the month, moving to the previous trading day when that is a holiday.
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Ask Samjho Bhai →Educational information, not investment advice. Market Dekho is not a SEBI-registered Research Analyst or Investment Adviser. Exchange schedules and contract specifications change by circular; always confirm on the exchange website.