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 announces securities shortlisted under Short-Term Additional Surveillance Measure (ST-ASM) Framework effective December 31, 2025, including 5 securities in Stage-I and exclusion of 4 securities from ASM.
Impact
Medium
Severity
Medium
Justification
Affects trading in 5 securities newly added to ST-ASM Stage-I and removes 4 securities from surveillance framework. Medium impact as it changes trading conditions for specific securities.
BSE publishes updated list of 54+ securities under Graded Surveillance Measure (GSM) framework based on Criteria 1 and/or Criteria 2, effective December 15, 2025.
Impact
High
Severity
High
Justification
Enhanced surveillance measures significantly impact trading of 54+ listed securities with additional compliance requirements, price bands, and margin requirements affecting investor access and liquidity.
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.
BSE announces changes to securities under Short Term Additional Surveillance Measure framework effective October 24, 2025, including 11 new inclusions, stage movements, and 12 exclusions.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for 24 securities through surveillance framework changes, impacting liquidity and trading margins for these specific stocks
NSE announces inclusion of four securities under ST-ASM Stage I with 50% margin requirement, and exclusion of seven securities from ASM framework effective October 09, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading in 11 securities with enhanced margin requirements for 4 stocks and removal of restrictions for 7 stocks. Medium impact as it applies to specific securities under surveillance.
BSE bulletin announcing record dates and book closure dates for dividend payments, interest payments, and commercial paper redemptions across multiple companies.
Impact
Medium
Severity
Medium
Justification
Regular corporate action notifications affecting multiple listed companies with dividend payments and commercial paper redemptions