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 Demat Auction circular listing securities and quantities subject to auction settlement for settlement number 738 dated October 20, 2025.
Impact
Medium
Severity
Medium
Justification
Routine demat auction affecting multiple securities due to delivery shortfalls. Impacts specific trades requiring auction settlement but is part of normal market operations.
BSE demat auction settlement listing securities and quantities available for auction to cover settlement shortages.
Impact
Medium
Severity
Medium
Justification
Affects multiple securities and their settlement participants; operational impact on brokers and clearing members who need to participate in auction to cover shortages
NSE imposes 35% margin requirement on securities of companies with high promoter shareholding encumbrance. Four securities added, four removed from surveillance framework effective October 6-8, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading margins for specific securities due to high promoter encumbrance, requiring 35% minimum margin which impacts liquidity and trading costs for affected stocks
NSE updates surveillance measures for companies with high promoter and non-promoter encumbrance, removing two companies from the framework while maintaining consolidated list of four securities.
Impact
Medium
Severity
Medium
Justification
Updates to surveillance framework affecting specific securities with margin implications
NSE implements surveillance measures with 75% margin requirement for companies with high promoter and non-promoter encumbrance, adding one security and maintaining consolidated list of five securities.
Impact
Medium
Severity
Medium
Justification
Affects trading margins for specific securities but limited to companies with high encumbrance levels
NSE surveillance measure updates for companies with high promoter and non-promoter encumbrance, with margin requirements and exclusions effective August 2025.
Impact
Medium
Severity
Medium
Justification
Affects specific securities with margin requirement changes but limited scope with only one exclusion and existing consolidated list
BSE announces surveillance measures for companies with high promoter and non-promoter encumbrance under SEBI SAST regulations, effective August 5, 2025.
Impact
Medium
Severity
Medium
Justification
Affects specific companies with high encumbrance levels; impacts trading and compliance requirements