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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 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 or the existing margin, whichever is higher, capped at 100 percent. These margin requirements apply to all open positions as of October 29, 2026, and all new positions created from October 30, 2026. The ASM framework operates alongside other prevailing surveillance measures. The inclusion of securities under this measure results from market surveillance and does not constitute adverse action against the affected entities.
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Key dates
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[Image omitted. See the official document.] [Image omitted. See the official document.]
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/ 77156 | Date: October 28, 2026 |
| Circular Ref. No: 830/2026 | |
To All NSE Members
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:
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:
[Image omitted. See the official document.]
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
Amit Shinde
Chief Manager
Surveillance
