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 introduces Short-Term Additional Surveillance Measure (ST-ASM) Stage I for four securities with increased margin requirements of 50% or existing margin (whichever is higher) effective November 11, 2025.
Impact
Medium
Severity
Medium
Justification
Impacts specific securities with increased margin requirements which affects trading liquidity and costs for market participants holding positions in these stocks
NSE circular announcing securities subject to Short-Term Additional Surveillance Measure (ST-ASM) framework effective October 31, 2025, including one new addition and two exclusions.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for 29 securities under ASM framework with one new addition (UTSSAV) to Stage I and two exclusions (BANCOINDIA, V2RETAIL). Medium impact as it applies enhanced surveillance measures to specific securities.
BSE announces the list of securities being added to, removed from, and continuing in the Short Term Additional Surveillance Measure (ST-ASM) framework effective October 30, 2025.
Impact
High
Severity
High
Justification
ST-ASM framework imposes additional surveillance and trading restrictions on securities showing abnormal price movements, directly affecting liquidity and trading for 15+ securities with immediate effect from October 30, 2025.
BSE Demat Auction listing securities and quantities for settlement number 744, covering multiple scrips across various companies.
Impact
Medium
Severity
Medium
Justification
Routine demat auction affecting multiple securities with varying quantities; operational requirement for settlement purposes but not indicative of broader market changes
BSE demat auction for settlement number 744 listing securities for auction across multiple scrips due to shortages in delivery obligations.
Impact
Medium
Severity
Medium
Justification
Demat auctions are routine settlement mechanisms for delivery shortages affecting multiple stocks. Medium impact as it involves significant quantities across major stocks including HDFC Bank, Reliance, Infosys, and others.
BSE demat auction settlement listing securities and quantities available for auction on October 28, 2025.
Impact
Low
Severity
Low
Justification
Routine demat auction settlement notice affecting specific securities with limited quantities. Standard operational procedure with minimal market-wide impact.