NSE places Shyam Century Ferrous Limited and Total Transport Systems Limited under ST-ASM Stage I with 50% margin requirement effective December 9, 2025. Bigbloc Construction and Wol 3D India excluded from ASM framework.
Impact
High
Severity
High
Justification
Direct impact on trading with 50% margin requirement for two securities entering ST-ASM Stage I, significantly affecting liquidity and trading costs. Two securities being excluded from ASM framework also impacts market participants.
NSE circular on securities shortlisted for Short-Term Additional Surveillance Measure (ST-ASM) framework effective December 05, 2025, with one security added to Stage I and three securities excluded.
Impact
Medium
Severity
Medium
Justification
Affects trading surveillance for specific securities with enhanced monitoring requirements. Gurunanak Agriculture India Limited added to ST-ASM Stage I, while three securities excluded from framework.
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.
NSE announces inclusion of 8 securities under ST-ASM Stage I with 50% margin requirement effective November 21, 2025, and exclusion of 3 securities from ASM framework.
Impact
High
Severity
High
Justification
High severity due to significant margin increase to 50% for affected securities, directly impacting trading costs and positions for market participants in these stocks.
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.