Title: Alibaba's Hong Kong shares slump on SoftBank's stake sale report
Summary by Reuters:
Japanese technology investor SoftBank Group Corp (9984.T) has moved to sell almost all of its remaining shares in Alibaba Group Holding Ltd (9988.HK), , the Financial Times reported, sending the Chinese e-commerce giant's Hong Kong-listed shares lower.  I'm a journalist, I'm receiving a financial expert, Give me a list of 10 questions I should ask him about this?