Lock-up shares worth 14.6 billion yuan (2.37 billion U.S. dollars) will become eligible for trading this week in China, according to data from the country's bourses. The volume marked a decline from the 33.5 billion yuan worth of shares that became tradable last week, according to the Shanghai and Shenzhen stock exchanges. Altogether, 20 listed companies will see their lock-up shares released to the capital market after agreements expire. 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 sell their shares. A decline in new stock supply this week is expected to have less downward pressure on the capital market.