
The Bombay Stock Exchange has issued circulars bringing select securities under Graded Surveillance Measure (GSM), Long-Term Additional Surveillance Measure (LT-ASM), Short-Term Additional Surveillance Measure (ST-ASM), and Enhanced Surveillance Measure (ESM). The classifications…
The Bombay Stock Exchange has issued circulars bringing select securities under Graded Surveillance Measure (GSM), Long-Term Additional Surveillance Measure (LT-ASM), Short-Term Additional Surveillance Measure (ST-ASM), and Enhanced Surveillance Measure (ESM). The classifications determine trading restrictions and price bands for affected stocks.

The GSM circular lists securities moving into Stage I, II, III, or IV, with trade-to-trade settlement and price limits varying by stage. The additional surveillance frameworks apply to stocks identified as exhibiting abnormal price movements or high volatility. BSE updates the lists periodically based on market data analysis.
Trading members and market participants must comply with the revised surveillance measures from the effective dates specified in each circular. The affected securities face constraints on daily price movement and delivery requirements.
All four sources from BSE India are identical in format: they are PDF circulars announcing the applicability of surveillance measures on specific securities. None provide a narrative, context, or editorial framing. The coverage is uniform, straight regulatory reporting. The implication is that BSE is tightening market oversight through multiple mechanisms without public explanation. Investors should track which securities move between GSM stages for near-term price signals.
Coverage: 4 sources, 4 neutral
Sources (4): bseindia.com (neutral report), bseindia.com (2) (neutral report), bseindia.com (3) (neutral report), bseindia.com (4) (neutral report)
This brief was synthesised by AI from the 4 sources linked above, so one read covers every framing they carry. Methodology and corrections.