NSE adds 18 securities to the Long-Term Additional Surveillance Measure (LTASM) Stage-I framework effective April 29, 2026, with 100% margin requirement applicable from May 4, 2026.
Impact
High
Severity
High
Justification
18 securities face 100% margin requirements from May 4, 2026, directly restricting trading and increasing cost of holding positions. Affects retail and institutional traders holding these stocks. Three stocks moved from Short-Term ASM to Long-Term ASM indicating escalated scrutiny.
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.