Description

BSE applies Additional Measure (AMS) framework to securities exhibiting unusual price movement, with new inclusions and exclusions effective May 18, 2026, per review under circular 20251107-56.

Summary

BSE has conducted a periodic review under its Additional Measure for Securities (AMS) framework, originally established via circular 20251107-56 dated November 7, 2025. As a result of this review, certain securities have been identified for inclusion under the AMS framework for exhibiting unusual price movement, while others are being removed. All changes take effect from May 18, 2026.

Key Points

  • Review conducted per Exchange circular no. 20251107-56 dated November 07, 2025
  • Securities satisfying AMS inclusion criteria are listed in Annexure I
  • Securities exiting the AMS framework are listed in Annexure II
  • A consolidated list of all securities currently under the framework is provided in Annexure III
  • All changes (inclusions and exclusions) are effective May 18, 2026
  • Contact for clarifications: bse.surv@bseindia.com

Regulatory Changes

This notice updates the list of securities subject to the Additional Measure (AMS) framework applicable to equities on BSE witnessing unusual price movement. The framework was established under circular 20251107-56. The periodic review results in reclassification of securities into or out of the enhanced surveillance measure.

Compliance Requirements

  • Trading members must adhere to the additional trading restrictions applicable to securities listed in Annexure I from May 18, 2026
  • Members dealing in securities moving out (Annexure II) should note the relaxation of AMS conditions from the same date
  • For any queries, members may contact BSE Surveillance at bse.surv@bseindia.com

Important Dates

  • Circular Date: May 15, 2026
  • Effective Date for Inclusions and Exclusions: May 18, 2026
  • Reference Circular: 20251107-56 dated November 07, 2025

Impact Assessment

Securities placed under the AMS framework typically face enhanced surveillance conditions such as additional margins, trade-for-trade settlement, or price bands, which can significantly affect liquidity and trading volumes. Inclusion of new securities may deter speculative activity and increase transaction costs for traders holding those stocks. Exclusion of securities from the framework eases trading conditions and may improve liquidity. The actual list of impacted securities is contained in the attached Annexures (not reproduced in the main circular text).

Impact Justification

AMS framework changes directly restrict trading conditions for affected securities; inclusions and exclusions effective May 18, 2026 have immediate market impact on listed equities.