NSE applies Short-Term Additional Surveillance Measure (ST-ASM) Stage I to 7 securities with 50% margin requirement effective November 26, 2025, and excludes 2 securities from ASM framework.
Impact
High
Severity
High
Justification
High margin requirements of 50% minimum imposed on 7 securities under ST-ASM Stage I framework, significantly impacting trading positions and capital requirements for market participants effective November 26, 2025.
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.