Applicability of Additional Surveillance Measure
NSE circular 635/2026 · 18 Aug 2026
Official title
Applicability of Additional Surveillance Measure (ASM)
Official record
Open source pageSummary
Check the official recordWhat changed
The National Stock Exchange of India identifies specific securities for inclusion under the Long Term Additional Surveillance Measure. Members must apply a 100 percent margin rate on all open positions as of August 21, 2026. This margin requirement also applies to new positions created from August 24, 2026. Securities that meet the criteria for Stage IV shift from the Rolling Settlement segment to the Trade-for-Trade segment effective August 24, 2026. These measures operate alongside other existing surveillance actions. The exchange notes that this shortlisting results from market surveillance and does not constitute an adverse action against the affected entities.
- Who is affected
- All NSE members
- Required action
- Apply a 100 percent margin rate on all open positions as of August 21, 2026.
- Apply a 100 percent margin rate on new positions created from August 24, 2026.
- Shift securities qualifying under Stage IV criteria from Rolling Settlement to Trade-for-Trade segment.
- Key dates
- Effective date for margin and segment shift — 23 Aug 2026
- Reference date for open positions subject to 100 percent margin — 20 Aug 2026
- Thresholds
- Margin rate of 100 percent.
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 18 Aug 2026
- Document number
- 635/2026
- Issuing division
- SURVEILLANCE
- Effective date
- 23 Aug 2026
- Coverage area
- securities
Document text
National Stock Exchange of India Limited
Circular
Department: SURVEILLANCE
| Download Ref No: NSE/SURV/75823 | Date: August 19, 2026 |
|---|---|
| Circular Ref. No: 635/2026 |
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 24, 2026 on all open positions as on August 21, 2026 and new positions created from August 24, 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 24, 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.
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.
National Stock Exchange of India Limited
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
Research the source law
Find the provision behind this update.
No high-confidence provision match was found. Browse the law library, choose the affected provision and ask against the exact statutory text.
Browse source laws