NSE announces securities being added to ESM Stage I and publishes consolidated list of all securities under Enhanced Surveillance Measure framework effective April 01, 2026.
Impact
High
Severity
High
Justification
Directly affects trading conditions for multiple listed securities; ESM placement restricts trading to trade-for-trade settlement and imposes price bands, significantly impacting liquidity and investor activity across 40+ stocks.
NSE announces half-yearly review of market lot sizes for SME platform securities, with 22 symbols revised downwards and 521 symbols unchanged, effective April 30, 2026.
Impact
Medium
Severity
Medium
Justification
Routine half-yearly SME lot size review affecting 22 securities with downward revisions; improves liquidity and accessibility for retail investors in SME segment but limited broader market impact.
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 includes 3 securities under ESM Stage I and moves 2 securities from Stage II to Stage I effective March 23-24, 2026, with mandatory 100% margin and shift to Trade-for-Trade segment.
Impact
High
Severity
High
Justification
Multiple securities face mandatory 100% margin requirements and segment shifts to Trade-for-Trade, directly restricting trading conditions for affected stocks.
NSE circular announcing updates to the Enhanced Surveillance Measure (ESM) framework, including securities moving to Stage II and the consolidated list of securities under ESM effective March 17-18, 2026.
Impact
High
Severity
High
Justification
Directly affects trading conditions for multiple securities by imposing 100% margin requirements and shifting them to Trade-for-Trade settlement, significantly impacting liquidity and trading strategy for affected stocks.
NSE announces inclusion of Aakash Exploration Services Limited under ESM Stage-I effective March 10-11, 2026, with 100% margin requirement and shift to Trade-for-Trade segment.
Impact
High
Severity
High
Justification
Mandatory 100% margin requirement and forced migration from rolling settlement to trade-for-trade segment directly impacts trading of affected securities, restricting liquidity and increasing cost of participation.
NSE updates Enhanced Surveillance Measure (ESM) framework effective March 04-05, 2026, with UNIVPHOTO moving from Stage I to Stage II and no new inclusions or exclusions.
Impact
High
Severity
High
Justification
ESM changes impose 100% margin requirements and shift securities to Trade-for-Trade settlement, significantly restricting trading in affected stocks. UNIVPHOTO is escalated to Stage II with a 2% price band under Periodic Call Auction, directly impacting liquidity and trading conditions.
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 changes to Enhanced Surveillance Measure framework with three securities moving from Stage II to Stage I effective February 1, 2026, and one security excluded from ESM framework.
Impact
Medium
Severity
Medium
Justification
Affects trading parameters for specific securities with margin and settlement changes, but limited number of securities involved
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.