NSE adds 14 securities to ST-ASM Stage I effective April 22, 2026, imposing 50% margin requirement on all open and new positions from April 23, 2026. No securities added to Stage II.
Impact
High
Severity
High
Justification
14 stocks placed under ST-ASM Stage I with mandatory 50% margin requirement effective immediately, directly impacting trading costs and position limits for market participants holding or trading these securities.
NSE announces addition of 3 securities to ST-ASM Stage-I and exclusion of 4 securities from the ASM Framework, effective April 01, 2026.
Impact
High
Severity
High
Justification
Directly affects trading conditions for 31 securities including notable names like IDBI Bank and JSW Holdings; ST-ASM inclusion imposes trading restrictions impacting liquidity and investor behavior.
NSE places 6 securities under ST-ASM Stage I effective March 27, 2026, with enhanced margin requirements of 50% or existing margin (whichever is higher) applicable from March 30, 2026.
Impact
High
Severity
High
Justification
Direct trading restrictions on 6 securities with significant margin hikes (up to 50% minimum or 100% maximum) affecting open and new positions from March 30, 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.
BSE announces revised price bands ranging from 2% to 20% for 68 securities across various sectors, effective from August 18, 2025.
Impact
Medium
Severity
Medium
Justification
Price band changes affect trading volatility and investor behavior for 68 securities, but impact is contained to specific stocks rather than market-wide