Bengaluru, Sept. 3 -- 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 put under Stage 1 of the ST-ASM framework, margin requirements go up. Traders may need to keep anywhere between 50 percent to 100 percent margin, depending on the stock's volatility and risk as assessed by the exchange.

In this stage, intraday trading with leverage is not allowed. Investors can only do CNC (Cash and Carry) deliv...