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NSE06 Aug 2026circularPrepared by Complied AI

Applicability of Short-Term Additional Surveillance Measure

Official title

Applicability of Short-Term Additional Surveillance Measure (ST-ASM)

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What changed

The National Stock Exchange of India has identified specific securities for inclusion under Stage I and Stage II of the Short-Term Additional Surveillance Measure (ST-ASM) framework. Effective August 11, 2026, securities under Stage I will be subject to a 50% margin rate or the existing margin, whichever is higher, capped at 100%. Securities under Stage II will be subject to a 100% margin rate. These measures apply to all open positions as of August 10, 2026, and any new positions created from August 11, 2026. The exchange clarifies that this shortlisting is a market surveillance action and not an adverse measure against the affected entities.

Who is affected
  • All NSE members
Required action
  • Apply a 50% margin rate or existing margin (whichever is higher, capped at 100%) for securities in ST-ASM Stage I.
  • Apply a 100% margin rate for securities in ST-ASM Stage II.
Key dates
  • Effective date for ST-ASM margin requirements — 10 Aug 2026

Prepared automatically from the captured official document and checked against source evidence. This is not an independent professional review. See how briefs are prepared. Verify material decisions against the official record.

Source details

Source
National Stock Exchange of India
Type
circular
Published by source
06 Aug 2026
Document number
NSE/SURV/75650
Issuing division
SURVEILLANCE
Effective date
10 Aug 2026
Coverage area
securities

Document text

Prepared for reading; wording retained from the source.

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[Image omitted. See the official document.]

National Stock Exchange of India Limited

Circular

Department: SURVEILLANCE
Download Ref No: NSE/SURV/75650Date: August 07, 2026
Circular Ref. No: 604/2026

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. August 11, 2026 on all open positions as on August 10, 2026 and new positions created from August 11, 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. August 11, 2026 on all open positions as on August 10, 2026 and new positions created from August 11, 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.

[Image omitted. See the official document.]

Continuation Sheet

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.

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.

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

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