NSE circular announcing changes to Enhanced Surveillance Measure (ESM) framework effective March 25, 2026, including one security moving from Stage I to Stage II and consolidated list of 40+ securities under ESM.
Impact
High
Severity
High
Justification
ESM changes impose significant trading restrictions on affected securities; Stage II carries stricter trading curbs. Movement of VILINBIO to Stage II and a large consolidated list of 40+ securities directly impacts traders and investors in these stocks.
NSE announces inclusion of 5 securities under ST-ASM Stage I with 50% margin requirement effective February 04, 2026, and exclusion of 6 securities from ASM framework.
Impact
High
Severity
High
Justification
Significant margin increase to 50% for 5 securities including Sterlite Technologies and Mtar Technologies affects trading costs and liquidity. Immediate impact on market participants with positions in these securities.
NSE imposes Short-Term Additional Surveillance Measure (ST-ASM) Stage I on 5 securities with increased margin requirements of 50% effective January 28, 2026.
Impact
High
Severity
High
Justification
Significant margin increase to 50% for 5 securities impacts trading costs and liquidity 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 announces inclusion of 8 securities under ST-ASM Stage I with 50% margin requirement effective November 21, 2025, and exclusion of 3 securities from ASM framework.
Impact
High
Severity
High
Justification
High severity due to significant margin increase to 50% for affected securities, directly impacting trading costs and positions for market participants in these stocks.