BSE notice 20260902-37 · 02 Sept 2026
Official title
Applicability of Long Term Additional Surveillance Measure (LT-ASM)
Official record
Open source pageSummary
Check the official recordBSE applies Long Term Additional Surveillance Measures (LT-ASM) to specific securities. The exchange imposes 100% margins on open positions as of September 4, 2026, and on new positions from September 7, 2026. Certain securities move to higher LT-ASM stages or transfer to T, XT, MT, or TS groups effective September 7, 2026. Other securities move out of the LT-ASM framework effective September 3, 2026. The exchange also applies lower price bands to designated securities starting September 3, 2026. These measures function alongside existing surveillance rules. The exchange reviews these securities periodically. This action results from market surveillance and does not represent adverse action against the listed entities.
What you must do
Key dates
[Image omitted. See the official document.]
| Notice No. | 20260902-37 |
| Notice Date | 02 Sep 2026 |
| Category | Trading |
| Segment | Equity |
| Department | DOSS |
| Subject | Applicability of Long Term Additional Surveillance Measure (LT-ASM) |
| Attachments | ANNEXURE-ASMLT |
[Image omitted. See the official document.]
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. September 07, 2026 on all open positions as on September 04, 2026 and new positions created from September 07, 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. September 03, 2026 is given in Annexure I (Part B):
In addition, Lower Price Band shall be applicable w.e.f. September 03, 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. September 07, 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. September 03, 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 | Shreya Ghose |
| Deputy Vice President | Manager |
| Surveillance | Surveillance |
Who is affected