Stocks eke out gains amid State-backed buying

Chinese mainland stocks rose in volatile trade as State-backed funds were said to intervene after a plunge on Monday wiped out $590 billion of market value.

The CSI 300 Index advanced 0.3 percent at the close after swinging between a gain of 1.4 percent and a loss of 2.7 percent. Trading was halted on Monday after the gauge plunged 7 percent, triggering new market circuit breakers that some analysts said exacerbated the sell-off.

State-controlled funds bought equities and the securities regulator signaled a selling ban on major investors will remain beyond this week's expiration date, according to people familiar with the matter. The China Securities Regulatory Commission also suggested it's open to tweaking the circuit breakers, while the central bank conducted the biggest reverse-repurchase operations since September.