Alibaba Group Holding Ltd. BABA, +4.82% fell short on adjusted earnings for its latest quarter but still was seeing its stock gain premarket Wednesday as the Chinese e-commerce player boosted its buyback authorization by $25 billion. The company reported fiscal third-quarter net income of 10.7 billion renminbi ($1.5 billion), or 5.65 renminbi per American depositary share, down from 46.8 billion renminbi, or 17.91 renminbi per ADS, in the year-earlier period. On an adjusted basis, Alibaba earned 18.97 renm ...