Lock-up shares worth about 26 billion yuan (3.8 billion U.S. dollars) will become eligible for trading on the Shanghai and Shenzhen stock exchanges in the coming week.

The amount is 69.3 percent less than the week just passed, according to data complied by Chongqing-based Southwest Securities.

Lock-up shares from 28 listed companies will become tradable from July 10 to 14, with the peak share unlocking period falling on Monday, 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 mixed Friday, with the benchmark Shanghai Composite Index up 0.17 percent to 3,217.96 points. The Shenzhen index closed 0.02 percent higher to 10,563.72 points.