NSE announces securities entering and exiting the Short-Term Additional Surveillance Measure framework effective December 26, 2025, with 7 securities added to Stage I and 5 securities being excluded from ASM.
Impact
High
Severity
High
Justification
ST-ASM placement significantly impacts trading by imposing stricter surveillance measures including possible price limits, higher margins, and reduced position limits on 7 securities while providing relief to 5 securities being excluded
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.