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BEIJING, June 4 (Xinhua) -- Lock-up shares worth about 50.75 billion yuan (7.46 billion U.S. dollars) will become eligible for trading on the Shanghai and Shenzhen stock exchanges in the coming week.

About 3.96 billion shares from 39 companies will become tradable on the exchanges from June 5 to 9, data from information service provider Wind showed.

China Yangtze Power Co. Ltd. is set to unlock 1.76 billion shares on Wednesday, the largest amount from a single company in the week.

Under China's market rules, major shareholders must wait one to two years before they are permitted to sell their shares.

Chinese stocks closed higher on Friday amid lingering market uncertainty after authorities intensified efforts to crack down on financial irregularities.

The benchmark Shanghai Composite Index edged up 0.09 percent to close at 3,105.54 points, and the Shenzhen Component Index closed 0.66 percent higher at 9,794.89 points.