NSE includes Systematix Corporate Services Limited (SYSTMTXC) in Long-Term ASM Framework Stage-I effective March 17, 2026, with 100% margin requirement applicable from March 19, 2026.
Impact
High
Severity
High
Justification
100% margin requirement imposed on SYSTMTXC affecting all open and new positions; directly impacts trading costs and liquidity for the affected security.
NSE announces applicability of Short-Term ASM (ST-ASM) framework with 4 securities added to Stage I and 4 securities excluded, effective March 04, 2026.
Impact
Medium
Severity
Medium
Justification
Routine surveillance circular affecting 8 securities with trading restrictions for Stage I additions; medium impact as it directly affects traders and investors holding these specific scrips.
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 implements Short-Term Additional Surveillance Measure (ST-ASM) for 6 securities with increased margin requirements of 50% or existing margin (whichever higher, capped at 100%) effective February 03, 2026.
Impact
High
Severity
Medium
Justification
High impact due to significant margin increase (50% minimum) affecting trading in 6 securities. Important for market participants holding or trading these stocks to avoid margin shortfalls.
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.