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 updates list of securities moving into, within, and out of Short Term ASM framework with revised surveillance stages effective February 5, 2026.
Impact
Medium
Severity
Medium
Justification
Regular surveillance update affecting 23+ securities with trading restrictions; impacts liquidity and price discovery for listed companies under enhanced monitoring
BSE announces changes to securities under Short Term Additional Surveillance Measure framework, with 7 securities being added, 1 security moving to lower stage, and 8 securities exiting the framework effective February 05, 2026.
Impact
Medium
Severity
Medium
Justification
Routine surveillance framework update affecting 16 securities. Important for traders and investors in affected stocks as it indicates heightened monitoring and potential trading restrictions.
NSE implements Short-Term Additional Surveillance Measure (ST-ASM) on select securities with enhanced margin requirements of 50% or existing margin (whichever is higher) effective February 6, 2026.
Impact
High
Severity
High
Justification
Significantly increases margin requirements to 50% minimum on affected securities, directly impacting trading costs and leverage for market participants. Affects multiple stocks with stage transitions and exclusions.
BSE announces changes to securities under Short Term Additional Surveillance Measure framework, including new additions, stage movements, and removals effective January 29, 2026.
Impact
Medium
Severity
Medium
Justification
Affects trading in multiple securities through surveillance framework changes, impacting liquidity and trading activity for listed companies
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.