Bengaluru, Sept. 2 -- Short-term Additional Surveillance Measure (ST ASM) is a regulatory framework by SEBI and Indian stock exchanges to monitor stocks showing sudden, abnormal trading patterns. It aims to protect investors and maintain market integrity by imposing temporary, stricter trading conditions on such volatile or speculative securities.

ST- ASM (Additional Surveillance Measure) Stage 1 When a stock is placed under Stage 1 of the ST-ASM framework:

Up to 100% margin requirement: Margin requirements may increase to 100%, but can start from 50% or the prevailing level, depending on volatility and risk assessment by the exchange. No intraday leverage: Traders are not allowed to use margin or leverage for intraday trades in ST-ASM ...