NSE introduces 15% additional exposure margin on derivatives for securities where top 10 clients account for over 20% of MWPL, effective November 26, 2025.
Impact
High
Severity
High
Justification
Significant margin increase of 15% on derivative positions for affected securities will directly impact capital requirements and trading strategies for market participants dealing with these stocks.
BSE demat auction listing for settlement number 752 dated November 11, 2025, containing securities eligible for auction to fulfill delivery obligations.
Impact
Medium
Severity
Medium
Justification
Routine demat auction affecting multiple securities for settlement obligations; impacts specific market participants with pending delivery commitments but not broader market operations
BSE demat auction for settlement number 752 covering multiple securities with various quantities scheduled for trading.
Impact
Medium
Severity
Medium
Justification
Standard demat auction settlement affecting multiple securities with varying quantities. Impact is moderate as it involves routine settlement procedures for securities shortages.
Four securities - CYIENT, HFCL, NCC, and TITAGARH RAIL SYSTEMS - will be discontinued from trading in Equity Derivatives segment effective December 26, 2025.
Impact
High
Severity
High
Justification
Complete discontinuation of derivatives trading for four securities affects traders and market participants with positions in these contracts. High impact due to mandatory position closure by December 2025.
BSE announces discontinuation of derivatives contracts for CYIENT, HFCL, NCC, and TITAGARH RAIL SYSTEMS from December 26, 2025, following SEBI eligibility criteria review.
Impact
High
Severity
High
Justification
Impacts active derivatives traders in four stocks with immediate effect on trading strategies and positions. Complete discontinuation of F&O contracts affects hedging and speculation activities.
NSE will not issue new F&O contracts for CYIENT, HFCL, NCC, and TITAGARH after existing contracts expire in December 2025, following SEBI eligibility criteria.
Impact
High
Severity
High
Justification
Complete exclusion of F&O contracts for four securities will significantly impact derivative traders and market participants holding positions in these stocks
BSE announces demat auction for settlement number 740 covering 90 scrips with quantities ranging from 1 to 10,000 shares for delivery settlement.
Impact
Medium
Severity
Medium
Justification
Routine demat auction for delivery settlement affecting 90 scrips. While operationally important for settlement integrity, it represents standard market infrastructure process with limited broader market impact.
BSE demat auction settlement listing securities available for auction to fulfill delivery obligations, covering 117 scrips across various sectors.
Impact
Low
Severity
Low
Justification
Routine demat auction settlement notice with standard delivery obligation fulfillment process affecting specific scrips with limited market-wide impact
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