NSE Clearing introduces 15% additional exposure margin on 14 securities where top 10 clients account for more than 20% of MWPL, effective December 31, 2025.
Impact
High
Severity
High
Justification
Significant 15% additional margin requirement on 14 securities affects trading costs and liquidity in equity derivatives segment, impacting traders with concentrated positions in these stocks.
BSE demat auction settlement listing 107 securities across 54 scrip codes with quantities to be auctioned on December 22, 2025.
Impact
Medium
Severity
Medium
Justification
Routine demat auction settlement affecting multiple securities with varying quantities; impacts trading members and investors with delivery obligations
BSE publishes updated market-wide position limits for 75 securities in the equity derivatives segment, specifying limits for total market positions and client/NRI/mutual fund categories.
Impact
Medium
Severity
Medium
Justification
Regular position limit updates that affect derivatives trading risk management for 75 actively traded securities; essential for compliance but routine operational information
BSE circular specifying the strike price intervals for equity derivatives across 70+ securities for options trading.
Impact
Medium
Severity
Low
Justification
Technical circular specifying standardized strike price intervals for derivatives trading across major securities; affects options traders and market makers but does not change existing trading rules.
BSE announces updated strike price intervals for equity derivatives across 70 scrips, ranging from ₹1 to ₹250 intervals based on underlying security price levels.
Impact
Medium
Severity
Low
Justification
Standard operational circular affecting derivatives traders. Updates strike price intervals for 70 scrips which impacts option chain availability and trading strategies but does not change fundamental market structure.
BSE updates strike price intervals for equity derivative contracts across various scrips, ranging from ₹1 to ₹250 depending on the underlying security.
Impact
Medium
Severity
Low
Justification
Operational update affecting derivative traders and market participants; standardizes strike price intervals for better liquidity and trading efficiency across 70+ scrips.
BSE demat auction settlement listing securities and quantities for various scrips under settlement number 779.
Impact
Medium
Severity
Medium
Justification
Demat auction settlements affect specific scrips and their trading members. This is a routine operational circular impacting parties with failed delivery obligations for 87 securities.
BSE demat auction settlement listing securities and quantities for auction settlement number 775 dated December 12, 2025.
Impact
Low
Severity
Low
Justification
Routine demat auction settlement affecting specific quantities of securities for trade settlement purposes. Limited direct market impact beyond settlement obligations.