Description

BSE announces changes to the Short Term Additional Surveillance Measure (ST-ASM) framework with 12 securities being added, 7 securities moving out, and stage changes for various securities effective December 18, 2025.

Summary

BSE has announced updates to the Short Term Additional Surveillance Measure (ST-ASM) framework effective December 18, 2025. The circular identifies 12 securities being newly added to the ST-ASM framework at Stage I, 7 securities moving out of the framework, and no securities moving to higher or lower stages within the framework. The ST-ASM framework applies enhanced surveillance measures to securities showing unusual price movements or volatility over short periods (5/15/30 days).

Key Points

  • 12 securities added to Short Term 5/15/30 Days ASM Framework at Stage I
  • 7 securities moving out of ST-ASM Framework
  • No securities moving to higher stages within ST-ASM
  • No securities moving to lower stages within ST-ASM
  • Changes effective from December 18, 2025
  • Framework includes both main board and SME scrips
  • Some securities marked with asterisks indicating NSE alignment

Securities Added to ST-ASM (Stage I)

  1. Asahi Songwon Colors Ltd (532853)
  2. Bemco Hydraulics Ltd (522650)
  3. Chemkart India Ltd (544442) - SME
  4. Colinz Laboratories Ltd (531210)
  5. Dolphin Offshore Enterprises (India) Ltd (522261)
  6. KJMC Corporate Advisors (India) Ltd (532304)
  7. Optimus Finance Ltd (531254)
  8. Perfect-Octave Media Projects Ltd (521062)
  9. Shree Rama Multi-Tech Ltd (532310)
  10. Sylph Technologies Ltd (511447)
  11. Tainwala Chemicals and Plastics (India) Ltd (507785)
  12. Tilak Ventures Ltd (503663)

Securities Moving Out of ST-ASM

  1. Coromandel Engineering Company Ltd (533167) - Moving to LT-ASM
  2. Deccan Bearings Ltd (505703) - Moving to LT-ASM
  3. Kaynes Technology India Ltd (543664)
  4. Kaynes Technology India Ltd T+0 (143664)
  5. RR MetalMakers India Ltd (531667)
  6. Supertech Ev Ltd (544428) - SME
  7. Transvoy Logistics India Ltd (543754) - SME

Regulatory Changes

The ST-ASM framework is part of BSE’s surveillance mechanism to monitor securities with abnormal price movements or trading patterns. Securities under this framework face additional surveillance measures including:

  • Enhanced monitoring of trading activity
  • Potential additional margin requirements
  • Stage-based progression (Stage I, II, III) based on continued unusual activity
  • Different treatment for main board vs SME scrips

Compliance Requirements

  • Trading members must be aware of securities under ST-ASM framework
  • Enhanced due diligence may be required for trades in these securities
  • Investors should be informed about surveillance status
  • Additional margins may apply as per exchange requirements
  • Members must monitor client activities in these securities

Important Dates

  • Effective Date: December 18, 2025 - All changes to ST-ASM framework become applicable

Impact Assessment

Market Impact: Medium - Affects 19 securities with changes in surveillance status. Addition to ST-ASM typically indicates recent unusual price movements or volatility, which may affect liquidity and trading interest.

Trading Impact: Securities newly added to ST-ASM Stage I will face enhanced surveillance, which may lead to reduced speculative activity and improved price discovery. Securities moving out (particularly those moving to LT-ASM) will continue under different surveillance frameworks.

Investor Impact: Investors holding or trading these securities should be aware of the enhanced surveillance status, which may affect trading costs, margins, and liquidity. The framework is designed to protect investor interests by monitoring unusual activities.

Impact Justification

Affects 19 securities with changes to surveillance framework, impacting trading conditions for specific stocks. Important for traders and investors in these securities.