Amazon, Tencent Pull Away From Alibaba by Market Value: Chart

Alibaba Group Holding Ltd.’s shares have struggled to regain the lofty peaks they attained just after the company’s 2014 debut. While Inc. and Chinese internet rival Tencent Holdings Ltd. made steady headway on markets, billionaire Jack Ma’s e-commerce titan has seen its growth taper off alongside a Chinese economy that’s losing steam. Alibaba, which reports earnings in the U.S. Thursday, has also had to fend off accusations it turns a blind eye to piracy.