Locked shares worth about 81.7 billion yuan (12.4 billion U.S. dollars) will become eligible for trading on the Shanghai and Shenzhen stock exchanges in the coming week.

The amount is 57 percent more than last week, according to data compiled by information service provider Wind.

Locked shares from 33 listed companies will become tradable from Sept. 4 to 8, it said.

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, with the benchmark Shanghai Composite Index up 0.19 percent to 3,367.12 points.

The stock market has been bullish from Monday to Friday, holding firmly above the 3,300-point mark, a level previously seen as strong resistance.