NSE Surveillance circular updating the list of symbols subject to the Reversal Trade Cancellation Mechanism (RTCM) for May 2026, covering series EQ, BE, BZ, SM, ST & SZ across approximately 175 designated securities.
Impact
Medium
Severity
Medium
Justification
Routine monthly update to the RTCM symbol list for May 2026 affecting ~175 smaller/mid-cap securities; important for trading members handling these stocks but limited broader market impact since Nifty 500 and NSE Clearing-approved securities are excluded.
NSE places 19 securities under ST-ASM Stage I and additional securities under ST-ASM Stage II effective April 16, 2026, with enhanced margin requirements of 50% and 100% respectively.
Impact
High
Severity
High
Justification
Directly imposes enhanced margin requirements (50%-100%) on 19+ listed securities effective April 16, 2026, significantly increasing trading costs and restricting leverage for market participants holding or trading these stocks.
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 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 shifts 12 securities to Trade for Trade segment with price bands effective December 02, 2025, and maintains surveillance measures on 19 existing securities.
Impact
Medium
Severity
Medium
Justification
Affects liquidity and trading conditions for 31 securities. Trade for Trade segment restricts intraday trading and requires compulsory delivery, significantly impacting traders in these securities.
BSE revises price bands for 35 securities ranging from 2% to 20%, effective November 24, 2025.
Impact
Medium
Severity
Medium
Justification
Price band revisions affect trading limits for 35 securities, indicating heightened surveillance measures but limited to smaller companies with restricted impact on broader market