BSE has received clarifications from 11 companies regarding significant price/volume movement observed in their scrips. Replies are still awaited from 16 other companies.
Impact
Medium
Severity
Medium
Justification
Routine BSE surveillance notice following significant price/volume movement in 27 scrips. 11 companies have responded with clarifications; 16 are yet to reply. Relevant to investors holding these stocks as pending clarifications may indicate unresolved concerns about abnormal trading activity.
NSE adds 18 securities to the Long-Term Additional Surveillance Measure (LTASM) Stage-I framework effective April 29, 2026, with 100% margin requirement applicable from May 4, 2026.
Impact
High
Severity
High
Justification
18 securities face 100% margin requirements from May 4, 2026, directly restricting trading and increasing cost of holding positions. Affects retail and institutional traders holding these stocks. Three stocks moved from Short-Term ASM to Long-Term ASM indicating escalated scrutiny.
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 51 securities under Short-Term ASM Framework Stage-I effective April 27, 2026, with no securities added to Stage-II and no movement between stages.
Impact
High
Severity
Medium
Justification
51 securities placed under Short-Term ASM Stage-I affecting a broad set of listed companies with enhanced surveillance and potential trading restrictions from April 27, 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.
BSE announces Demat Auction for Settlement No. 832 dated March 5, 2026, listing securities from various companies to be auctioned due to short delivery or other settlement obligations.
Impact
Medium
Severity
Medium
Justification
Routine demat auction notice affecting 91 securities across multiple companies. While it impacts specific shareholders with short delivery positions, it is a standard settlement mechanism and does not indicate major market or regulatory changes.
BSE announces Demat Auction Settlement No. 832 dated March 5, 2026, listing securities of approximately 80 companies to be auctioned due to short delivery or non-delivery in the cash segment.
Impact
Medium
Severity
Medium
Justification
Routine demat auction notice affecting ~80 securities across various sectors. Settlement No. 832 indicates regular auction process for short delivery resolution; impacts holders of listed securities but is a standard market operations circular.
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.