NSE announces list of 323 securities subject to Reversal Trade Mechanism (RTCM) effective February 2026.
Impact
Medium
Severity
Medium
Justification
RTCM is a surveillance measure affecting 323 securities with enhanced monitoring and potential trading reversals to manage market risk and protect investors from abnormal price movements.
NSE announces inclusion of 4 securities under ST-ASM Stage I with increased margin requirements, and exclusion of 6 securities from ASM framework effective December 19, 2025.
Impact
High
Severity
High
Justification
Significant margin increase to 50% minimum for affected securities impacts trading costs and liquidity. Direct operational impact on members trading these stocks.
NSE announces securities entering and exiting the Short-Term Additional Surveillance Measure (ST-ASM) framework effective December 17, 2025, impacting 26 securities across various stages.
Impact
High
Severity
High
Justification
ST-ASM framework directly impacts trading conditions for 30 securities with 6 additions to Stage-I and 4 exclusions, affecting investor accessibility and liquidity
NSE announces inclusion of securities under ST-ASM framework with enhanced margin requirements of 50% or existing margin (whichever is higher) effective December 12, 2025.
Impact
High
Severity
High
Justification
High margin requirements (50% minimum) significantly impact trading liquidity and capital requirements for affected securities. Immediate compliance required for all open and new positions.
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.