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News Topical, Digital Desk : The Bombay Stock Exchange ( BSE) has decided to impose revised price bands on the shares of 61 companies, effective October 13, 2025. This move aims to prevent unusual trading activity and protect investors from potential risks . Under its regular surveillance mechanism , the BSE identifies stocks that experience sudden volume or price fluctuations and takes necessary action . Under this, the price bands of several stocks are reduced by 2%, 5%, and 10%.
BSE 's surveillance measures include reducing price bands, placing a stock in the trade-to-trade segment , imposing special margins , and suspending shares or members if necessary . The BSE sets a price band for each stock to prevent a sudden increase or decrease in the stock price. If a stock exhibits unusual volatility , a more stringent price band is imposed.
When is special margin applicable?
Special margins are imposed when a stock experiences an unusual increase in price or trading volume . In such situations, the BSE may impose special margins of 25 % , 50 % , or even 75 % . This is intended to protect investors from significant losses due to rumors or speculation.
The main objective of such surveillance action is to maintain transparency in the stock market, prevent any kind of manipulation in stock prices and protect the interests of investors.
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