NSE adds 5 securities to Long Term ASM Stage-I and moves 2 securities from Stage-I to Stage-II, with 100% margin requirement applicable from April 21, 2026.
Impact
High
Severity
High
Justification
100% margin requirement imposed on 7 securities with stage changes effective April 21, 2026; directly affects trading positions and liquidity for affected scrips
NSE announces the list of securities shortlisted under the Short-Term Additional Surveillance Measure (ST-ASM) Framework Stage I, effective April 10, 2026, covering 59+ securities across various sectors.
Impact
High
Severity
High
Justification
Directly affects trading conditions for 59+ listed securities by placing them under ST-ASM Stage I, which imposes additional margin and trading restrictions effective April 10, 2026.
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.
BSE announces changes to Long Term Additional Surveillance Measure framework with securities moving in and out of various ASM stages effective August 12, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for specific securities under surveillance measures