BSE circular on securities being added to, moved within, or removed from the Long Term Additional Surveillance Measure (LT-ASM) framework effective January 13, 2026.
Impact
Medium
Severity
Medium
Justification
Affects multiple securities entering or moving within LT-ASM framework, indicating heightened surveillance and trading restrictions for specific stocks due to concern parameters.
BSE updates on securities shortlisted, moved between stages, and removed from the Long Term Additional Surveillance Measure (LT-ASM) framework effective January 12, 2026.
Impact
Medium
Severity
Medium
Justification
Routine surveillance framework update affecting 26 securities with stage changes and removals, impacting trading conditions for affected stocks
List of securities subject to Reversal Trade Cancellation Mechanism (RTCM) for December 2025, covering over 300 stocks where specific trade cancellation procedures will apply.
Impact
Medium
Severity
Medium
Justification
Affects trading operations for over 300 securities with specific trade cancellation procedures. Important for traders and market participants dealing with these stocks to understand RTCM applicability.
NSE circular listing 324 securities subject to Reversal Trade Cancellation Mechanism (RTCM) for November 2025, a surveillance measure to prevent price manipulation.
Impact
High
Severity
Medium
Justification
RTCM is a critical surveillance mechanism affecting 324 securities, enabling NSE to cancel erroneous or manipulative trades. High impact on trading operations and investor protection, though routine monthly update.
BSE announces updates to the Long Term Additional Surveillance Measure framework with securities moving in and out of various ASM stages effective August 22, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for multiple securities under surveillance framework