NSE releases the updated list of 300+ securities subject to the Reversal Trade Cancellation Mechanism (RTCM) for March 2026, a surveillance measure to cancel trades that are reversed within a short timeframe.
Impact
Medium
Severity
Medium
Justification
Affects 300+ securities listed on NSE; RTCM is an active surveillance tool that can result in trade cancellations for reversal patterns, directly impacting traders and brokers dealing in these stocks. High importance due to the large number of securities covered; medium impact as it targets a specific trading behaviour rather than broad market restrictions.
BSE announces changes to Short Term ASM framework effective January 28, 2026, including securities being added, moved between stages, and removed from surveillance.
Impact
High
Severity
High
Justification
Direct impact on trading of multiple securities with enhanced surveillance measures; affects liquidity and trading conditions for listed companies
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 updating the list of securities under Short-Term Additional Surveillance Measure framework, effective January 16, 2026.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for 23 securities under ASM framework. One new security added to Stage-I, five securities excluded from ASM. Impacts trading members and investors in these securities.
BSE updates the list of securities under Short Term Additional Surveillance Measure framework with additions, exits, and stage movements effective January 14, 2026.
Impact
Medium
Severity
Medium
Justification
Routine surveillance framework update affecting 22+ securities with trading restrictions and stage changes
BSE circular detailing securities being added to, moved within, or removed from the Short Term Additional Surveillance Measure (ST-ASM) framework effective January 14, 2026.
Impact
Medium
Severity
Medium
Justification
Surveillance measures affect trading conditions and liquidity for multiple securities. Important for traders and investors in affected stocks to understand restrictions and stage changes.
BSE announces changes to securities under Short Term Additional Surveillance Measure framework, including additions, removals, and stage movements effective January 13, 2026.
Impact
Medium
Severity
Medium
Justification
Affects multiple securities with enhanced surveillance measures impacting trading conditions for 24 stocks across addition, removal, and stage movement categories
BSE announces changes to the Short Term Additional Surveillance Measure (ST-ASM) framework including new inclusions, stage movements, and securities moving out effective January 9-12, 2026.
Impact
High
Severity
High
Justification
ST-ASM framework directly impacts trading conditions for 25+ securities with price band restrictions and margin requirements, affecting investor trading strategies and liquidity
NSE introduces Short-Term Additional Surveillance Measure (ST-ASM) Stage I for 6 securities with 50% margin requirement effective January 5, 2026, while excluding 3 securities from ASM framework.
Impact
High
Severity
High
Justification
High margin requirements (50-100%) significantly impact trading in affected securities, with immediate compliance required for market participants