--- title: "What is the Nifty lot size now, and why did it change?" description: "The Nifty lot is 65 units, and NSE's lot size file shows 65 for every expiry month it lists, including the long dated ones." source_url: "https://www.rupeecase.com/learn/questions/nifty-lot-size" --- The Nifty lot has changed twice since late 2024, and each change reached new contracts first 1. 21 Nov 2024**Lot 75 for new contracts**Up from 25. The SEBI start date, 20 Nov, was a trading holiday. Weekly and monthly contracts already listed kept 25 until they expired. 2. 3 Oct 2025**NSE circular sets lot 65**From the close of 28 Oct 2025, using the September 2025 average close. 3. 30 Dec 2025**Last expiry on the old lot**The last monthly expiry on 75. Quarterly and half yearly contracts move to 65 at the close. 4. 6 Jan 2026**First weekly on lot 65**The first weekly expiry on the new lot. The last weekly on the old lot was 23 Dec 2025. 5. 27 Jan 2026**First monthly on lot 65**The first monthly expiry on the new lot. Dated steps in the Nifty lot from NSE circulars. A change reached new contracts first. Contracts already listed ran to expiry on the old lot, except the long dated ones, which switched on a set date. Rule history, not market data. Source: NSE circulars NSE/FAOP/64625, NSE/FAOP/64990 and NSE/FAOP/70616 on the Nifty lot; SEBI master circular of 30 Dec 2024. As of 16 Oct 2026. On 16 Oct 2026 NSE's lot size file showed 65 units for Nifty in every expiry month it lists, out to June 2031. The timeline lists the dated changes, and each row says when the new lot first applied. The lot was 75 for new contracts from 21 Nov 2024, up from 25 before that. NSE's circular of 3 Oct 2025 set 65 from the close of 28 Oct 2025, using the average Nifty close for September 2025. Weekly and monthly contracts already listed stayed on 75 until their last expiries on 23 Dec and 30 Dec 2025. The first weekly on the new lot was 6 Jan 2026, and the first monthly was 27 Jan 2026. Quarterly and half yearly contracts moved to 65 at the close of 30 Dec 2025. Why it changes: SEBI's master circular of 30 Dec 2024 has exchanges review the lot every six months, on the average of the last month's closes, with at least two weeks' notice. A new index contract must be worth at least Rs 15 lakh when it is introduced, and the lot is set so that its value on the review day sits in a band of Rs 15 to 20 lakh. The lot must be a multiple of 5 and at least 10. A higher lot applies only to new contracts. A lot is a rule, not a view on the index. Read the lot with its date, because the number on a screen can change at a review. **Before you trade.** Derivatives trading carries a high risk of loss. SEBI's study "Profitability of Individual Traders in the Equity Derivatives Segment (FY25 to FY26)" (August 2026) found that 87.7% of individual traders in equity F&O made net losses in FY26, with aggregate net losses of Rs 91,685 crore. [Read the SEBI study](https://www.sebi.gov.in/reports-and-statistics/research/aug-2026/study-profitability-of-individual-traders-in-the-equity-derivatives-segment-fy25-fy26-_103835.html) What is the Nifty lot size now, and why did it change?The Nifty lot is 65 units, and NSE's lot size file shows 65 for every expiry month it lists, including the long dated ones. SEBI has exchanges review the lot every six months to keep a contract's value in a set band, and NSE cut the Nifty lot to 65 in October 2025, phased in by contract. LGo deeper ## Where Learn teaches this. [Go deeperContract specs that matter now: lots, expiry days, strikes and settlement9 min, Beginner](/learn/path-12/module-12-4-contract-specs-lots-and-expiries)[Module 6.6Derivatives, Futures and Options for the Systematic Investor9 min, Path 06](/learn/path-6/module-6-6-derivatives-futures-options) SSources ## Go to the source. 5 sources, NSE the most cited The publisher of each source listed below. Source: Module undefined source list. 1. [NSE, equity derivatives contract specifications (instruments, trading cycle and expiry day)](https://www.nseindia.com/static/products-services/equity-derivatives-contract-specifications) NSE 2. [NSE lot size file for futures and options (lot by expiry month, listed to June 2031)](https://nsearchives.nseindia.com/content/fo/fo_mktlots.csv) NSE 3. [NSE circular NSE/FAOP/70616, revision in market lot of index derivatives (3 Oct 2025)](https://nsearchives.nseindia.com/content/circulars/FAOP70616.pdf) NSE 4. [NSE circular NSE/FAOP/64625, contract size revision for index derivatives (18 Oct 2024)](https://nsearchives.nseindia.com/content/circulars/FAOP64625.pdf) NSE 5. [SEBI master circular for stock exchanges and clearing corporations (30 Dec 2024), lot size rules in chapter 5](https://www.sebi.gov.in/legal/master-circulars/dec-2024/master-circular-for-stock-exchanges-and-clearing-corporations_90353.html) SEBI ?Questions people ask ## Related questions. 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