(Yicai Global) Feb. 12 -- The China Securities Regulatory Commission has been taking action to restore normality to the stock markets, despite overlooking a recent slide at a press conference on Feb. 9.

The CSRC is investigating companies posting larger-than-expected losses and pledged to probe any alleged irregularities, the Beijing-based watchdog said in an online statement. It has already given notice to Shenzhen-listed Zhangzidao Group Co. warning the fisheries company that it believes the firm has violated regulations.

Stock exchanges have also tightened oversight and intensified checks on abnormal conditions or possible legal violations. The Shanghai bourse is keeping a close eye on transaction risks and major selloffs that affect stable market operations, the commission said. The exchange has issued alerts and imposed restrictions on intraday trading.

China's A-share market underwent sharp corrections last week, with the Shanghai Composite Index diving around 10 percent over the course of the week, after a plunge in many overseas exchanges. Insiders from investment institutions put the nosedive down to investor panic, and believe that the anxiety will subside when regulators make clear they will act to stabilize the market.

The CSRC didn't release the number of initial public offerings approved last week, which it normally discloses every Friday after the market closes. Investors believe this is a sign that the commission is controlling the pace of IPOs and enhancing guidance to avoid impacting investor sentiment.