NSE circular updating the list of securities under the Additional Surveillance Measure (ASM) framework, with one security (Marinetrans India Limited) being excluded and moved to ESM framework.
Impact
Low
Severity
Low
Justification
Routine surveillance circular with no new securities added to ASM framework and only one security moved from LT-ASM to ESM. No stage changes for existing securities.
NSE places 21st Century Management Services Limited under Long-Term ASM Stage-I with 100% margin requirement effective December 29, 2025.
Impact
High
Severity
High
Justification
High impact for affected security with 100% margin requirement, but limited to single stock; medium overall importance as part of routine surveillance framework
NSE circular announcing revised price bands for 47 securities effective December 5, 2025, with 34 securities moved to 2% band and 13+ securities to 5% band.
Impact
High
Severity
High
Justification
Significant trading restriction affecting 47 securities with tighter price bands limiting intraday volatility, directly impacting trading strategies and liquidity for these 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 revised price bands for securities across different categories, effective October 08, 2025, impacting 3,006 securities with bands ranging from 2% to 40%.
Impact
High
Severity
Medium
Justification
Affects 3,006 securities with varying price bands, directly impacting trading volatility limits and risk management for market participants across multiple categories.