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 11 securities added to ST-ASM Stage I and 15 securities excluded from the ASM framework, effective April 23, 2026. No securities moved between Stage I and Stage II.
Impact
Medium
Severity
Medium
Justification
Routine ST-ASM update affecting 26 securities; 11 newly placed under enhanced surveillance (Stage I) and 15 removed from ASM framework. Trading in affected securities will face additional margin and monitoring requirements, impacting retail and institutional participants holding these stocks.
NSE adds 14 securities to Enhanced Surveillance Measure (ESM) Stage I effective April 23, 2026, requiring 100% margin and shifting marked securities from Rolling Settlement (EQ/SM) to Trade-for-Trade (BE/ST) segment from April 24, 2026.
Impact
High
Severity
High
Justification
14 securities are placed under ESM Stage I with mandatory 100% margin and segment migration to Trade-for-Trade, significantly restricting trading conditions and directly impacting traders and investors holding positions in these stocks.
NSE adds 14 securities to ST-ASM Stage I effective April 22, 2026, imposing 50% margin requirement on all open and new positions from April 23, 2026. No securities added to Stage II.
Impact
High
Severity
High
Justification
14 stocks placed under ST-ASM Stage I with mandatory 50% margin requirement effective immediately, directly impacting trading costs and position limits for market participants holding or trading these securities.
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.
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.
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.