Alibaba and Tencent bid for comeback after $140 Billion wipeout

China’s two largest companies have lost a combined $140 billion in market value since the escalation of the trade war in May. As Alibaba Group Holding Ltd. and Tencent Holdings Ltd. report earnings this week back-to-back, they’ll try to show the punishment is overdone. Bloomberg's Selina Wang tells you what to watch out for when both of the companies report earnings.