CSE sources said the bourse was keeping an eye on rampant price fluctuations of the prices of investment firms.
A CSE source said the exchange has asked trade details of two investment firms, Stanly Credit and Stenly Securities.
The two companies, managed by stock broker Ashok Jain, were suspected to be involved in jama kharchi, a prohibited mechanism that helped investors book profit or loss on papers only.
The source said,