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 announces demat auction for settlement number 797 involving 85 scrips across various companies with specified quantities for auction.
Impact
Medium
Severity
Medium
Justification
Settlement auction affects 85 scrips with varying quantities including one high-volume scrip (Tilak Ventures with 5.99 million shares). This is a routine market operation but with significant scope across multiple companies.
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
BSE circular on securities moving into, within, and out of the Short Term Additional Surveillance Measure (ST-ASM) framework effective December 29, 2025.
Impact
Medium
Severity
Medium
Justification
Surveillance measure affecting 25 securities with trading restrictions. Significant for investors in affected stocks but limited broader market impact.
BSE updates on securities entering and exiting Short Term ASM framework effective December 29, 2025, including 9 new additions and 15 removals.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for 25 securities with 9 additions and 15 removals from ST-ASM framework, impacting liquidity and trading patterns for affected stocks
BSE announces changes to the Short Term Additional Surveillance Measure (ST-ASM) framework with 12 securities being added, 7 securities moving out, and stage changes for various securities effective December 18, 2025.
Impact
Medium
Severity
Medium
Justification
Affects 19 securities with changes to surveillance framework, impacting trading conditions for specific stocks. Important for traders and investors in these securities.
NSE places four securities under ST-ASM Stage I with 50% margin requirement, moves one security from Stage II to Stage I, and excludes two securities from ASM framework effective December 18-19, 2025.
Impact
High
Severity
High
Justification
Significant margin increase to 50% for affected securities impacts trading activity and liquidity; affects multiple securities with immediate effect
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.