NSE places 9 securities under Long-Term Additional Surveillance Measure (LT-ASM) Stage I effective April 20, 2026, with 100% margin requirement from April 22, 2026.
Impact
High
Severity
High
Justification
100% margin requirement imposed on 9 securities with immediate effect; directly impacts trading costs and liquidity for affected scrips; some stocks shifted from STASM to LTASM indicating escalating surveillance.
NSE announces the list of securities shortlisted under the Short-Term Additional Surveillance Measure (ST-ASM) Framework Stage I, effective April 10, 2026, covering 59+ securities across various sectors.
Impact
High
Severity
High
Justification
Directly affects trading conditions for 59+ listed securities by placing them under ST-ASM Stage I, which imposes additional margin and trading restrictions effective April 10, 2026.
BSE demat auction listing for settlement number 784 covering 103 securities across various scrips with specified quantities for auction.
Impact
Medium
Severity
Medium
Justification
Regular demat auction notice affecting 103 securities with specified quantities. Important for settlement participants and brokers handling these specific scrips but routine market operation.
BSE demat auction listing 105 scrips with their respective quantities for settlement number 784 dated December 26, 2025.
Impact
Medium
Severity
Medium
Justification
Standard demat auction for settlement obligations affecting 105 scrips. Medium impact as it involves delivery failures requiring auction settlement, but is a regular operational process.
BSE announces changes to the Short Term Additional Surveillance Measure (ST-ASM) framework, including 5 securities entering ST-ASM and 6 securities moving out, effective October 29, 2025.
Impact
Medium
Severity
Medium
Justification
Routine surveillance measure affecting 11 securities with trading restrictions to curb excessive speculation and volatility
NSE circular detailing securities added to and excluded from the Short-Term Additional Surveillance Measure (ST-ASM) framework effective October 29, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading conditions for specific securities under surveillance framework. Limited to 3 new entries in Stage-I and 4 exclusions, impacting liquidity and trading costs for these stocks.
NSE circular announcing securities being placed under Short-Term Additional Surveillance Measure (ST-ASM) framework, effective October 27, 2025.
Impact
Medium
Severity
Medium
Justification
Affects trading in 30 securities under ST-ASM framework with enhanced surveillance measures including stricter price bands and settlement requirements for Stage I securities
BSE announces demat auction for settlement number 739 covering securities from 140+ companies with specified quantities for auction settlement.
Impact
Medium
Severity
Medium
Justification
Routine demat auction affecting multiple securities with delivery defaults; impacts specific brokers and their clients who failed to deliver securities in settlement 739