China’s stocks slump amid economic gloom A recent stream of worrying economic data released by China is taking the fizz out of its stock market. An index of Chinese stocks traded in Hong Kong has fallen more than 9 percent this month, and the Hang Seng Index is down a similar amount. The CSI 300, which tracks the biggest companies listed in Shanghai and Shenzhen, has dropped about 5 percent. “The Chinese economy is faced with an imminent downward spiral with the worst yet to come,” analysts at the investment…