Novartis jumped over 3% in premarket trading as it launched new shares buyback of up to $15 bln<blockquote>诺华启动高达150亿美元的新股回购，盘前交易中股价上涨超过3%</blockquote>
Novartis jumped over 3% in premarket trading as it launched new shares buyback of up to $15 bln.Nova
Xiaomi's stumble allows Apple to reclaim No.2 spot in smartphones<blockquote>小米的失败让苹果重新夺回了智能手机第二的位置</blockquote>
Hong Kong - Xiaomi stumbled in the third quarter as it grappled with fallout from the global chip shortage and fiercer competition.The Chinese company, which only recently became the world's second-biggest smartphone maker, fell back to third place behindApplein the three months ended September, according to Counterpoint Research and Canalys.Posting earnings on Tuesday, Xiaomi said that its smartphone business had been severely affected by the ongoing shortage of semiconductors, which it expect