NSE circular detailing securities being added, moved, or excluded from the Long-Term Additional Surveillance Measure (ASM) framework effective October 29, 2025.
Impact
High
Severity
High
Justification
ASM placement significantly impacts trading conditions with increased margin requirements and reduced liquidity. Stage transitions affect multiple securities and trading members must adjust risk management practices.
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.
BSE circular announcing changes to Long Term ASM Framework effective October 17, 2025, including securities being added, moved between stages, and removed from the framework.
Impact
Medium
Severity
Medium
Justification
Affects multiple securities under surveillance framework with stage changes and entries/exits from LT-ASM, impacting trading parameters for specific stocks