NSE adds 20 securities to Enhanced Surveillance Measure (ESM) Stage I effective April 23, 2026, requiring 100% margin and shift from Rolling Settlement to Trade-for-Trade segment.
Impact
High
Severity
High
Justification
20 securities face 100% margin requirements and mandatory segment migration from Rolling Settlement (EQ/SM) to Trade-for-Trade (BE/ST), significantly restricting trading flexibility and increasing cost of participation for market members.
NSE Surveillance has decided to shift 14 securities from Rolling segment (EQ) to Trade for Trade segment (BE) with a 5% price band effective April 17, 2026, as part of ongoing market surveillance review.
Impact
High
Severity
High
Justification
Surveillance action affecting 14 securities with immediate liquidity and trading restrictions — shift to Trade for Trade eliminates netting, imposes 5% price band, and removes EQ/SM series availability. Triggered by Price Earnings Multiple, Price Variation & Market Capitalization criteria across all listed securities.
NSE announces the list of securities shortlisted under the Short-Term Additional Surveillance Measure (ST-ASM) Framework Stage I, effective April 10, 2026, covering 59+ securities across various sectors.
Impact
High
Severity
High
Justification
Directly affects trading conditions for 59+ listed securities by placing them under ST-ASM Stage I, which imposes additional margin and trading restrictions effective April 10, 2026.
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.