NSE Surveillance circular updating the list of symbols subject to the Reversal Trade Cancellation Mechanism (RTCM) for May 2026, covering series EQ, BE, BZ, SM, ST & SZ across approximately 175 designated securities.
Impact
Medium
Severity
Medium
Justification
Routine monthly update to the RTCM symbol list for May 2026 affecting ~175 smaller/mid-cap securities; important for trading members handling these stocks but limited broader market impact since Nifty 500 and NSE Clearing-approved securities are excluded.
NSE announces the list of securities subject to the Reversal Trade Cancellation Mechanism (RTCM) for April 2026, covering 300+ stocks under enhanced surveillance.
Impact
High
Severity
High
Justification
RTCM is an NSE surveillance measure that directly cancels reversal trades in listed securities. Inclusion in this list significantly restricts trading patterns for 300+ stocks in the cash market segment for April 2026, with immediate and direct impact on trading activity and liquidity for affected securities.
BSE announces Demat Auction for Settlement No. 826 dated February 24, 2026, listing 87 scrips with quantities to be auctioned across various sectors.
Impact
Low
Severity
Low
Justification
Routine demat auction notice for a single settlement; affects a broad but specific set of scrips with relatively small quantities; no regulatory changes or compliance obligations for general market participants.
BSE announces Demat Auction for Settlement No. 826 dated 24/02/2026, listing securities and quantities to be auctioned due to delivery failures across 75+ scrips.
Impact
Medium
Severity
Low
Justification
Routine demat auction notice for failed deliveries in Settlement No. 826. Low importance as it is a regular BSE operational circular, but medium impact as it involves 75+ scrips across diverse sectors with mandatory auction participation for shortfall quantities.
NSE releases the updated list of 300+ securities subject to the Reversal Trade Cancellation Mechanism (RTCM) for March 2026, a surveillance measure to cancel trades that are reversed within a short timeframe.
Impact
Medium
Severity
Medium
Justification
Affects 300+ securities listed on NSE; RTCM is an active surveillance tool that can result in trade cancellations for reversal patterns, directly impacting traders and brokers dealing in these stocks. High importance due to the large number of securities covered; medium impact as it targets a specific trading behaviour rather than broad market restrictions.
BSE announces demat auction for Settlement No. 815 dated February 9, 2026, listing securities and quantities across 445 scrips for auction settlement.
Impact
Medium
Severity
Medium
Justification
Routine demat auction for settlement of delivery shortages affecting 445 scrips. Standard market operation with localized impact on specific trades and positions.
BSE demat auction list for settlement number 815 dated February 9, 2026, containing 223 scrips with their respective auction quantities.
Impact
Medium
Severity
Medium
Justification
Routine demat auction list affecting multiple securities across various sectors. Important for settlement obligations but part of regular market operations.
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 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.