Applicability of Short-Term Additional Surveillance Measure (ST-ASM) · NSE/SURV/76167
NSE circular NSE/SURV/76167 · 03 Sept 2026
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The National Stock Exchange of India includes specific securities in the Short-Term Additional Surveillance Measure (ST-ASM) framework. Securities in Stage I attract a margin rate of 50 percent or the existing margin, whichever is higher, capped at 100 percent. Securities in Stage II attract a margin rate of 100 percent. These measures apply to all open positions as of September 4, 2026, and all new positions created from September 7, 2026. The exchange applies these measures in addition to other existing surveillance requirements. This action results from market surveillance and does not represent an adverse action against the affected companies.
What you must do
- Members must apply the specified margin rates for securities included in ST-ASM Stage I and Stage II.
Key dates
- Reference date for open positions
- 04 Sept 2026
Document text
National Stock Exchange of India Limited
Circular
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/76167 | Date: September 03, 2026 |
| Circular Ref. No: 685/2026 | |
To All NSE Members
Sub: Applicability of Short-Term Additional Surveillance Measure (ST-ASM)
This is further to Exchange Circular nos. NSE/SURV/39265, NSE/SURV/46557, NSE/SURV/52144, NSE/SURV/58558 and NSE/SURV/64066 dated October 27, 2018, December 04, 2020, April 28, 2022 September 25, 2023 and September 20, 2024 respectively, in respect of Additional Surveillance Measure (ASM).
Members are hereby requested to note that the securities as per attached Annexure I have satisfied the criteria for inclusion under ST-ASM Stage I. The applicable surveillance actions shall be as per provisions of the Short-Term Additional Surveillance Measure (ST-ASM) which are as under:
- Applicable rate of margin shall be 50% or existing margin, whichever is higher, subject to maximum rate of margin capped at 100% w.e.f. September 07, 2026 on all open positions as on September 04, 2026 and new positions created from September 07, 2026.
Securities as per attached Annexure I have satisfied the criteria for inclusion under ST-ASM Stage II. The applicable surveillance actions shall be as per provisions of the Short-Term Additional Surveillance Measure (ST-ASM) which are as under:
- Applicable margin rate shall be 100% or existing margin whichever is higher subject to maximum rate of margin capped at 100%. w.e.f. September 07, 2026 on all open positions as on September 04, 2026 and new positions created from September 07, 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.
National Stock Exchange of India Limited
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
- 03 Sept 2026
- Document number
- NSE/SURV/76167
- Issuing division
- SURVEILLANCE
- Effective date
- 07 Sept 2026
- Coverage area
- securities