Chinese e-commerce giant Alibaba Group Holding's second-quarter revenue growth is likely to have slumped to half the year-earlier rate, undermining hopes consumer spending will temper a slowdown in the world's second-biggest economy.
Beijing is hoping that private consumption will pick up the slack as exports fall and it tries to rebalance the economy - now heading for its slowest full-year growth in 25 years - away from a reliance on trade and government spending.
But Alibaba's second-quarter results due on Tuesday are expected to cloud the increasingly grim outlook for consumer spending, which accounted for 60 percent of China's economic growth in the first half of 2015.
"Much focus will be paid to the deceleration in volume growth Alibaba guided to mid-quarter. Investors will be looking to see if Alibaba can improve take rates to make up for this slowdown," Wedbush Securities analyst Gil Luria said.