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By Aseem Shrivastava | Published at: Jun 18, 2026 04:03 PM IST

A rising stock price creates excitement. You see trading volumes exploding but that rally has little to do with business performance and everything to do with manipulation. The case of Roofit Industries is one such example.
SEBI’s investigation into trading activity in the company’s shares exposed how artificial demand can push prices higher before buyers get trapped. Let’s understand how such manipulation tactics work. We will also explore why blindly chasing momentum can be dangerous.
SEBI launched an investigation after noticing unusual price movements in the shares of Roofit Industries in 1999. The stock price during this period reportedly jumped from around INR 127 to INR 268 while daily trading volumes surged sharply.
Such dramatic moves attract attention but regulators became concerned that the activity was not being driven by genuine investor interest. SEBI’s investigation focused on whether certain market participants were creating artificial trading activity to influence the stock price.
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The Roofit Industries episode highlights the basic structure of a pump and dump operation. Operators accumulate shares quietly while trading volumes remain low. They then create excitement around the stock through coordinated trading.
The stock price rises rapidly as more buyers enter the market. Retail participants interpret this price movement as a sign of opportunity and rush in to avoid missing out. The operators then sell their holdings at elevated prices. The stock falls sharply once the buying pressure disappears and leaves late entrants with significant losses.
Cases like Roofit Industries demonstrate why market surveillance is critical. A fair market depends on prices being driven by genuine investors. It is best to avoid confusing excitement with opportunity. A rapidly rising stock may look attractive but understanding why it is rising is far more important than the rally itself. Disciplined investing backed by research and business fundamentals remains more reliable than chasing stocks that appear to be making quick gains.
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