(what's left of) China's stock market rises again after government intervention

``The Shanghai Composite Index rallied 4.54 per cent to close at 3,877.80 on Friday, building on Thursday's 5.8 per cent surge, after regulators this week banned major stockholders from selling stakes in listed companies and allowed banks to roll over loans backed by shares. It's still down nearly 30 per cent on its June 12 high, and more than 1,400 companies remained halted on mainland exchanges on Friday, locking sellers out of 50 per cent of the market.''