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 No. 824 listing securities scheduled for auction due to failed deliveries, covering 47 scrips across various sectors.
Impact
Low
Severity
Low
Justification
Routine periodic demat auction notice for failed deliveries in Settlement No. 824. Affects only holders with undelivered securities; no systemic market impact.
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.
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.
BSE announces changes to Enhanced Surveillance Measure framework with securities being added, moved between ESM stages, and removed from ESM effective November 24, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading surveillance for 44 securities across additions, stage movements, and removals from ESM framework, impacting investor trading activity and risk management
BSE updates Enhanced Surveillance Measure framework with securities being added, removed, and moved across ESM stages effective November 24, 2025.
Impact
High
Severity
High
Justification
ESM framework changes directly impact trading in 64 securities with altered surveillance stages affecting margin requirements, circuit filters, and trading restrictions for investors and brokers.
BSE announces additions, removals, and stage changes for securities under the Enhanced Surveillance Measure (ESM) framework effective November 24, 2025, affecting 43 securities across various categories.
Impact
Medium
Severity
Medium
Justification
Medium importance as ESM framework changes affect trading conditions for specific securities but are routine surveillance actions. Medium impact on affected companies and their shareholders due to potential liquidity and price volatility implications.
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.