BEIJING - The value of lock-up shares becoming eligible for trade on China's stock market in October totals about 69.4 billion yuan ($11.3 billion), according to data from two stock exchanges.

The volume went down by nearly 70 percent from September.

Altogether, lock-up shares from 40 listed companies on the Shanghai and Shenzhen stock exchanges will be released to the capital market.

Lock-up shares of about 43.4 billion yuan will be released on the Shanghai bourse, while the remaining will be released on the Shenzhen stock exchange.

China Power Construction Corporation will see non-tradable shares worth 17.5 billion yuan become tradable in October, the largest amount of such shares to hit the stock market during the month.

Under China's market rules, major shareholders of non-tradable stocks are subject to one or two years of lock-up before they are permitted to trade the shares.

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