BSE17 Aug 2026noticePrepared by Complied AI

Applicability of Long Term Additional Surveillance Measure

BSE notice 20260818-28 · 17 Aug 2026

Official title

Applicability of Long Term Additional Surveillance Measure (LT-ASM)

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Summary

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What changed

BSE implements Long Term Additional Surveillance Measures (LT-ASM) for specific securities. The exchange imposes 100% margins on open and new positions for securities in Annexure I (Part A) starting August 21, 2026. Securities in Annexure I (Part B) move to higher LT-ASM stages and face lower price bands starting August 19, 2026. Securities in Annexure I (Part D) transfer to T, XT, MT, or TS groups starting August 21, 2026. Securities in Annexure II exit the framework starting August 19, 2026. The exchange reviews these measures periodically. These actions result from market surveillance and do not represent adverse actions against the companies. Market participants must follow these measures alongside other existing surveillance requirements.

Who is affected: Market participants trading in equity securities.
Required action: Maintain 100% margins on open positions as of August 20, 2026, and new positions from August 21, 2026.
Key dates: Effective date for higher stage moves and lower price bands — 18 Aug 2026
Effective date for 100% margins and group transfers — 20 Aug 2026
Consequences: Securities move to higher LT-ASM stages or specific trading groups.
Lower price bands apply to affected securities.

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Source details

Source: BSE Ltd (Bombay Stock Exchange)
Type: notice
Published by source: 17 Aug 2026
Document number: 20260818-28
Issuing division: DOSS
Effective date: 18 Aug 2026
Coverage area: securities

Document text

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NOTICE

Notice No.	20260818-28
Notice Date	18 Aug 2026
Category	Trading
Segment	Equity
Department	DOSS
Subject	Applicability of Long Term Additional Surveillance Measure (LT-ASM)
Attachments	ANNEXURE_ASMLT

This is with reference to the Exchange notice no. 20180321-46 dated March 21, 2018 and various notices issued thereafter in this regard and the Exchange notice no. 20181027-1 dated October 27, 2018, Exchange notice no. 20201204-56 dated December 04, 2020, Exchange notice no. 20240809-46 dated August 09, 2024 and Exchange notice no. 20240920-63 dated September 20, 2024 regarding revision of LT-ASM framework. As per the revised LT-ASM framework, it may be noted that Long Term Additional Surveillance Measures (LT-ASM) as mentioned below shall be imposed on securities as per attached Annexure I (part A):

100% Margins shall be applicable w.e.f. August 21, 2026 on all open positions as on August 20, 2026 and new positions created from August 21, 2026 onwards.

Securities which are placed under the above-mentioned Framework would be reviewed on periodical basis. Further, the list of securities which are moved to their respective higher stages LT-ASM Framework, w.e.f. August 19, 2026 is given in Annexure I (Part B):

In addition, Lower Price Band shall be applicable w.e.f. August 19, 2026

Further, with reference to the Exchange notice no. 20210604-41 dated June 04, 2021, it may be noted that Long Term Additional Surveillance Measures (LT-ASM) as mentioned below shall be imposed on securities as per attached Annexure I (part D):

Securities shall be continue in LT-ASM framework but shall be transferred to T / XT / MT / TS Group w.e.f. August 21, 2026.

Securities which are placed under the above-mentioned Framework would be reviewed on periodical basis. Further, the list of securities which are moving out from LT-ASM Framework, w.e.f. August 19, 2026 is given in Annexure II.

For ready reference, consolidated list of securities under the Framework is attached as Annexure III.

Market participants may note that above Framework shall be in conjunction with all other prevailing surveillance measures being imposed by the Exchanges from time to time.

Also, it may also be noted that the shortlisting of securities under aforesaid Framework 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.

Note: Shortlisting of securities is based on the XBRL submission by the respective listed companies.

In case of any clarifications, members may write to us at bse.surv@bseindia.com.

For & On behalf of BSE Ltd.

Sanjay Jain	Arpita Joshi
Deputy Vice President	Manager
Surveillance	Surveillance

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