NSE announces additions, stage movements, and exclusions under the Enhanced Surveillance Measure (ESM) framework effective March 30, 2026. Two securities are added to ESM Stage-I, five move from Stage-II to Stage-I, and nine are excluded from the ESM framework.
Impact
High
Severity
High
Justification
Directly affects tradability and segment classification of multiple listed securities. ESM additions restrict trading to trade-for-trade settlement, impacting liquidity. Segment migrations (EQ/SM to BE/ST and vice versa) affect settlement obligations for investors holding or trading these stocks.
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 announces inclusion of securities under Long Term Additional Surveillance Measure (ASM) framework, with 100% margin requirement effective March 25, 2026. SIGMAADV moves to Stage IV (Trade-for-Trade) and SURANI moves from Stage I to Stage II.
Impact
High
Severity
High
Justification
Directly affects trading conditions for specific securities — 100% margin requirement and shift to Trade-for-Trade segment significantly impacts liquidity and trading strategy for affected stocks.
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 implements Long Term Additional Surveillance Measure with 100% margin requirement on two securities: DRS Cargo Movers Limited and Surani Steel Tubes Limited, effective January 23, 2026.
Impact
High
Severity
High
Justification
100% margin requirement significantly impacts trading in affected securities and represents enhanced surveillance action by the exchange
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.
NSE applies ST-ASM Stage I with 50% margin requirements to 5 securities including Ola Electric, while removing 3 securities from surveillance framework.
Impact
Medium
Severity
Medium
Justification
Affects 5 securities with increased margin requirements but excludes 3 securities from surveillance