NSE updates Enhanced Surveillance Measure framework with new securities added to ESM Stage-I, including Mega Flex Plastics Limited and Nephro Care India Limited moving to Stage-II.
Impact
High
Severity
High
Justification
High impact due to mandatory 100% margin requirement and shift to Trade-for-Trade segment affecting trading in specified securities
NSE circular announcing securities being placed under Short-Term Additional Surveillance Measure framework effective November 19, 2025, including GE Power India Limited and Vaxtex Cotfab Limited in Stage-I.
Impact
High
Severity
High
Justification
High severity surveillance measure affecting trading parameters for securities showing unusual price movements. Direct impact on trading costs and liquidity for affected stocks.
NSE announces inclusion of 6 securities under ST-ASM Stage I with increased margin requirements of 50% or existing margin (whichever is higher) effective November 13, 2025.
Impact
High
Severity
High
Justification
High importance and impact due to significant increase in margin requirements (minimum 50%) for affected securities, directly impacting trading costs and liquidity for market participants with positions in these stocks.
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.