Applicability of Additional Surveillance Measure
NSE circular 603/2026 · 07 Aug 2026
Official title
Applicability of Additional Surveillance Measure (ASM)
Official record
Open source pageSummary
Check the official recordWhat changed
The National Stock Exchange has identified specific securities that meet the criteria for inclusion under the Long-Term Additional Surveillance Measure (ASM). Effective August 12, 2026, these securities will be subject to a 100% margin requirement on all open positions as of August 11, 2026, and on all new positions created thereafter. Furthermore, securities qualifying under criteria VII, which are shifted to Stage IV, will be moved from the Rolling Settlement segment (Series: EQ) to the Trade-for-Trade segment (Series: BE) starting August 12, 2026. The Exchange clarifies that this shortlisting is a market surveillance measure and does not constitute an adverse action against the affected entities. The ASM framework operates in conjunction with other prevailing surveillance measures.
What you must do
- Apply a 100% margin rate on all open positions as of August 11, 2026, and on new positions created from August 12, 2026.
- Shift securities qualifying under criteria VII from Rolling Settlement segment (Series: EQ) to Trade-for-Trade segment (Series: BE).
Document text
National Stock Exchange of India Limited
Circular
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/75643 | Date: August 07, 2026 |
| Circular Ref. No: 603/2026 |
To All NSE Members
Sub: Applicability of Additional Surveillance Measure (ASM)
This is with reference to Exchange Circular nos. NSE/SURV/39265, NSE/SURV/45111, NSE/SURV/46557, NSE/SURV/48506, NSE/SURV/52090, NSE/SURV/63362 and NSE/SURV/64066 dated October 27, 2018, July 22, 2020, December 04, 2020, June 04, 2021, April 22, 2022, August 09, 2024 and September 20, 2024 respectively in respect of Additional Surveillance Measure (ASM).
Members are hereby requested to note that the securities as per the attached Annexure have satisfied the criteria for inclusion under Long Term Additional Surveillance Measure. The applicable surveillance actions shall be as per provisions of the Long-Term Additional Surveillance Measure (Long Term - ASM) which are as under:
➢ Applicable rate of margin shall be 100% w.e.f. August 12, 2026 on all open positions as on August 11, 2026 and new positions created from August 12, 2026 onwards.
Additionally, securities qualifying under criteria VII (Scrips shifted to Stage IV) shall be shifted from Rolling Settlement segment (Series: EQ) to Trade-for-Trade segment (Series: BE) w.e.f. August 12, 2026.
Market participants may note that ASM framework shall be in conjunction with all other prevailing surveillance measures being imposed by the Exchanges from time to time.
The Price Band of a scrip moving out of the framework shall be reinstated to the Price Band applicable to that scrip before it got shortlisted under the respective framework. This will be subject to the scrip not being shortlisted or part of any other Surveillance measure, in which case, the price band of the relevant surveillance framework will prevail.
Further, it may also be noted that the shortlisting of securities under ASM is purely on account of market surveillance, and it should not be construed as an adverse action against the concerned company / entity.
For more information on Additional Surveillance Measure please refer to our Frequently Asked Questions (FAQs) - https://www.nseindia.com/regulations/additional-surveillance-measure
In case of any further queries, you may write to us at surveillance@nse.co.in.
For National Stock Exchange of India Limited
Amit Shinde Chief Manager Surveillance
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 07 Aug 2026
- Document number
- 603/2026
- Issuing division
- SURVEILLANCE
- Effective date
- 12 Aug 2026
- Coverage area
- securities