NSE circular updating the list of securities under Short-Term Additional Surveillance Measure framework, effective January 16, 2026.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for 23 securities under ASM framework. One new security added to Stage-I, five securities excluded from ASM. Impacts trading members and investors in these securities.
NSE implements Short-Term Additional Surveillance Measure (ST-ASM) Stage I on Ahlada Engineers Limited and Vilin Bio Med Limited effective January 13, 2026, with margin requirements of 50% or existing margin (whichever is higher, capped at 100%).
Impact
High
Severity
High
Justification
High margin requirements (50% minimum, capped at 100%) directly impact trading costs and liquidity for the affected securities. Traders holding positions in these stocks will face increased capital requirements.
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.