Applicability of Short-Term Additional Surveillance Measure (ST-ASM) · NSE/SURV/77006
NSE circular NSE/SURV/77006 · 19 Oct 2026
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The National Stock Exchange of India Limited applies Short-Term Additional Surveillance Measure (ST-ASM) to specific securities listed in Annexure I. Securities in ST-ASM Stage I attract a margin rate of 50 percent or the existing margin, whichever is higher, capped at 100 percent. Securities in ST-ASM Stage II attract a margin rate of 100 percent or the existing margin, whichever is higher, capped at 100 percent. These margin requirements apply to all open positions as of October 21, 2026, and all new positions created from October 22, 2026. This measure operates in conjunction with other prevailing surveillance measures. The inclusion of securities under this framework results from market surveillance and does not constitute adverse action against the affected entities.
What you must do
- Apply the specified margin rates to open positions as of October 21, 2026, and new positions created from October 22, 2026.
Key dates
- Effective from
- 22 Oct 2026
Document text
[Image omitted. See the official document.]
National Stock Exchange of India Limited
Circular
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/77006 | Date: October 19, 2026 |
| Circular Ref. No: 809/2026 | |
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. October 22, 2026, on all open positions as on October 21, 2026, and new positions created from October 22, 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. October 22, 2026, on all open positions as on October 21, 2026, and new positions created from October 22, 2026.
[Image omitted. See the official document.]
Continuation Sheet
National Stock Exchange of India Limited
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.
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 and on behalf of
National Stock Exchange of India Limited
Sareesh Koroth
Associate Vice President
Surveillance
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 19 Oct 2026
- Document number
- NSE/SURV/77006
- Issuing division
- SURVEILLANCE
- Effective date
- 22 Oct 2026
- Coverage area
- securities