Stocks up most in 4 months

PetroChina, Kweichow Moutai among the biggest gainers

SHANGHAI - China's stocks rose the most in four months after Moody's Investors Service put the nation's debt rating on review for a possible upgrade, retail sales surged and the yuan climbed to its strongest against the dollar since 1993.

PetroChina Co and China Shenhua Energy Co gained more than 2 percent, leading a rally for energy and raw-materials stocks, after Moody's cited China's growth outlook for a possible upgrade and producers tracked gains in commodity prices during the National Day holiday.