NSE implements Short-Term Additional Surveillance Measure (ST-ASM) for 6 securities with increased margin requirements of 50% or existing margin (whichever higher, capped at 100%) effective February 03, 2026.
Impact
High
Severity
Medium
Justification
High impact due to significant margin increase (50% minimum) affecting trading in 6 securities. Important for market participants holding or trading these stocks to avoid margin shortfalls.
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 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.